Lycoming ircraft Engines Parts Catalog GSO-80 and IGSO-80 Series ircraft Engines Part No. PC- Oliver Street Williamsport, P 770
Lycoming ircraft Engines Parts Catalog GSO-80 and IGSO-80 Series ircraft Engines Part No. PC- Oliver Street Williamsport, P 770
SUPPLEMENTL PRTS LIST SSP780 To Provide Parts Coverage for Lycoming IGSO-80-F Model ircraft Engines NOTE The IGSO-80-IF model engine is identical to the IGSO-80-IF model which is listed in Lycoming illustrated Parts Catalog, PC- except for the torsional damper system which is modified by parts changes as noted in the following list. IGSO-80-F SECTION Page - Crankshaft ssembly Ref. No. Part No. Description Qty. Per ssy. LW-77 LW-00 9 7 790 9 7 9 7 790 0 7788 0 9 CRNKSHFT ND COUNTERWEIGHT SSY. CRNKSHFT ND COUNTERWEIGHT SSY. COUNTERWEIGHT SSY. BUSHING, Dynamic counterweight COUNTERWEIGHT SSY. COUNTERWEIGHT SSY. BUSHING, Dynamic counterweight ROLLER, Dynamic counterweight ROLLER, Dynamic counterweight 8 8 For all other crankshaft parts except those listed, use code letter "" for IGSO-80-F model engines. SSP780 PC- October, 980
SUPPLEMENTL PRTS LIST NO. SSP 7 To provide parts coverage for Lycoming GSO-80-BB MODEL IRCRFT ENGINES NOTE The GSO-80-BB model engine is identical to the GSO- 80-BB model which is listed in Lycoming Illustrated Parts Catalog, GSO and IGSO-80 aircraft engines, part number PC-, except for the torsional damper system which is modified by parts changes as noted in the following list: SECTION (PC-) CRNKSHFT SSEMBLY Page - Ref. No. Part Number Description Qty. LW- 00 9 7 790 9 7 790 0 7788 0 9 CRNKSHFT ND COUNTERWEIGHT SS'Y. COUNTERWEIGHT SSEMBLY BUSHING, Dynamic counterweight COUNTERWEIGHT SSEMBLY, Light BUSHING, Dynamic counterweight ROLLER, Dynamic counterweight ROLLER. Dynamic counterweight For all other crankshaft parts except those listed, use code letter "" for GSO-80-BB model engines. 8 8 SSP 7 PC- November, 97
Williamsport Plant TECHNICL PUBLICTION REVISION REVISION No. PC-- PUBLICTION GSO, IGSO-80 Series Parts Catalog PUBLICTION PC- No. PUBLICTION October 98 DTE The page(s) furnished herewith are intended to replace the corresponding page (s) of the publication indicated above. If additional copies of the revision are required they may be obtained from Lycoming Division. See Service Letter No. LN for further information on Lycoming service publications. Previous revisions to this publication PC-- - March 970 Pages -, -, -8, 8-, 8-, 8-, 8-, 8-, 8-, 8-7, 8-8 March 97 This revision consists of:- -, -, -7 to include engine model GSO-80- BB (Insert revision pages over obsolete pages) Revision Pages incorporated in January 99 REPRINT.
Lycoming ircraft Engines Parts Catalog GSO-80 and IGSO-80 Series ircraft Engines Part No. PC- Oliver Street Williamsport, P 770
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST INTRODUCTION This catalog contains a complete parts listing for GSO-80 and IGSO-80 Series aircraft engines. The following engines are contained herein: GSO-80-,-,- B, - BB,- BC, - BE,- BJ, - BD. IGSO-80-, -B, -C, -E, -F. The catalog is laid out to present major sub-assemblies in a chronological order. Sub-assemblies are not necessarily listed in engine build up order, but will follow this order wherever possible. The illustrations contained herein will endeavor to place a specific part in its exact location in a particular sub-assembly. Whereto doso would confuse correct position of the part, dottedlines willbe usedto assure correct location. No more parts will be shown in any illustration than appear on a single page. Where comparatively few parts are shown, an illustration will depict those parts in the listing directly above the illustration. There may be more than one illustration to a page under these circumstances. ll engine model identifications are listed as the engine left the factory. Individual engine modifiers are responsible for ordering the correct parts for any modification performed after the engine has left the factory. Excepting, of course, those modifications performed to conform with existing Lycoming Service Bulletins and/or Instructions. The following instructions are issued as a guide to the correct use of this catalog.. If youknow the name of the part, turnto the Table of Contents. Parts are listedhere by major sub-assembly, and component parts. a. If you do not know name of the part, check the sub-assembly, in which you think the part may be located.. The Table of Contents will point out both a section and a particular page for part in question; i. e. Connecting Rod and Bearing, Section IV, page -.. Turn to chart that precedes Section IV. Under the column marked "Engine Model" find model engine you require.. Moving to the right you will encounter several individual column headings identified by component parts and page number; ie. Connecting Rod and Bearing, page -.. Moving from the top of this column down, select the letter code (, B, etc. ) that is directly opposite the model engine you are interested in.. Turn to page -. Under "Description" column, you will find the part in question listed by its proper name. Preceding the description the part is also identified by Part Number and a Reference number. The Reference number refers to location of part in accompanying illustration. 7. In Model usage column you will find a letter code (, B, etc.). 8. Select the same letter that was indicated in Step. Since only the letter "" is shown, all models in this catalog use the same Connecting Rod. typical example: Find the correct exhaust valve for IGSO-80-E model engine. () Turn to Table of Contents in front of catalog. Note that valves and springs are in Section IV, page -. () Turn to Section IV. Using the chart at the beginning of this section, find engine model IGSO-80-E. () Move to right to individual column heading, Valve and Springs. This is on page -. Note that letter code opposite IGSO-80-E is "B". () Turn to page -. The letter"b" is opposite the 780, / in. stem diameter inconel exhaust valve and also the 7 / in. stem diameter standard exhaust valve. This signifies that either valve may be used in IGSO-80-E model engines. 9. much faster procedure, if the part number is known, would be to find part number in numerical parts number section. This section lists all parts in numerical order. It also identifies; the Description, Page No. Ref. No. and Quantity used. 0. If neither part name or part number is known, check the illustrations. Since the illustrations now contain fewer parts, it is easier to isolate a part, by sight.
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST TBLE OF CONTENTS SECTION INTRODUCTION PGE i TBLE OF CONTENTS.. LIST OF ILLUSTRTIONS. SUPERSEDURE SECTION. I.... Crankcase, Crankshaft and Camshaft Group. Crankcase ssembly. Mounting Brackets. Related Parts. Crankshaft ssembly Camshaft ssembly. Crankcase ttaching Parts Reduction Gear ssembly. Stationary Gear and Pinion Cage ssembly Prop. Shaft, Thrust Bearing and Cap ssembly Governor Drives and Governor Drive dapter Reduction Gear ttaching Parts. III.... ccessory Housing and ttaching Parts... - ccessory Housing ssembly... - Shaftgear ssemblies.... - Magneto, Tachometer and Starter Drives.... - Magneto Drive, Starter Drive dapter, and Fuel Injector Drive... - ccessory Housing Breather... - ccessory Housing Cover... -7 Oil Pump ssembly.....-8 Oil Scavenge Pump ssembly... -9 Oil Filter,Oil Pressure Relief Valve...... -0 ccessory Covers, Gaskets and ttaching Parts... - IV........ Cylinder, Piston and Valve Train............. - Connecting Rod ssembly.... - Pistons and Piston Ring ssemblies... - Cylinder ssembly.... - Valves and Related Parts...... - Valve Rocker ssembly... - Shroud Tubes, Push Rods and Cylinder Head Oil Drain Tubes.. -7 Intake and Exhaust Flanges and Intercylinder Baffle ssemblies.. -8 V....... Oil Sump ssembly and Oil Scavenge Pump Screens...... - Oil Sump ssembly and Oil Scavenge Pump Screens.... - Supercharger Outlet Pipe and Intake Pipe ssemblies.....- Intake Pipe ssemblies and ttaching Parts........- VI......... Fuel Induction System... Main ccessory and Supercharger Drives... Supercharger Housing... Impeller and Shaft ssembly... Supercharger Shaft Bearing and ir Inlet dapter. Supercharger ir Inlet Housing ssembly.. Carburetor and ttaching Parts... Priming System... Fuel Injector and Solenoid ssembly.. Bendix Fuel Injector Detail and ttaching Parts Fuel Lines and ttaching Parts... Fuel Injector and Related Parts...... -..... -..... -..... -..... -..... -.... -7..... -8..... -9 ~...... -0...... -...... -.. ii
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST TBLE OF CONTENTS SECTION PGE VII......... Ingition Components.................. 7- Magnetos and ttaching Parts... 7- Magneto Ground Kits... 7- Wiring Harness (798)... 7- Wiring Harness (79)... 7- Wiring Harness (70)... 7- Wiring Harness (779)... 7-7 Ignition Harness ttaching Parts............ 7-8 Spark Plugs... 7-9 VIII......... Numerical Parts Listing................ 8- IX......... Vendor ccessory Section............... 9- X....... Service Replacement Set Section... 0- iii
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST ILLUSTRTIONS SECTION I......... Crankcase, Crankshaft and Camshaft Group... Fig. - Crankcase ssembly... Fig. - Engine Mounting Brackets... Fig. - Crankcase Related Parts... Fig. - Crankshaft ssembly.... Fig. - Camshaft ssembly... Fig. - Crankcase ttaching Parts... II.... Reduction Gear ssembly... Fig. 7 - Reduction Gear and Housing ssembly.. Fig. 8 - Stationary Gear and Pinion Cage... Fig. 9 - Prop. Shaft, Thrust Bearing and Cap ssembly Fig. 0 - Governor Drives and Governor Drive dapter Fig. - Reduction Gear ttaching Parts... PGE -.... -... -. -... -. -. -7... - -.... -... -... -... - III... ccessory Housing ssembly... Fig. - ccessory Housing and ttaching Parts. Fig. - Shaftgear ssemblies... Fig. - Magneto, Tachometer and Starter Drives. Fig. - Magneto Drive, Starter Drive dapter, and Fuel Injector Drive... Fig. - ccessory Housing Breather... Fig. 7 - ccessory Housing Cover.... Fig. 8 - Oil Pump ssembly... Fig. 9 - Oil Scavenge Pump... Fig. 0 - Oil Filter and Oil Pressure Relief Valve.. Fig. - ccessory Covers, Gaskets and ttaching Parts IV......... Cylinder, Piston and Valve Train.. Fig. - Connecting Rod ssembly. Fig. - Piston and Ring ssembly... Fig. - Cylinder ssembly... Fig. - Valves and Related Parts... Fig. - Valve Rocker ssembly... Fig. 7 - Shroud Tubes and Push Rods. Fig. 8 - Cylinder Head Oil Drain Tubes Fig. 9 - Intake and Exhaust Flanges. Fig. 0 - Intercylinder Baffles... -. -. -. -. -. -. -7. -8. -9. -0.... - ~......... -..... -..... -.. -.. -. -.......... -7.. -7...... -8.... -8 V...... Oil Sump ssembly... Fig. - Oil Sump ssembly... Fig. - Oil Scavenge Screen... Fig. - Intake Pipe ssemblies and ttaching Parts..... -.. -.... -.... - VI....... Fuel Induction System... Fig. - Main ccessory and Supercharger Drives.. Fig. - Supercharger Housing... Fig. - Impeller and Shaft ssembly... Fig. 7 - Supercharger Shaft Bearing and ir Inlet dapter. Fig. 8 - Supercharger ir Inlet Housing... Fig. 9 - Carburetor and ttaching Parts... Fig. 0 - Priming System... Fig. - Fuel Injector, Solenoid ssembly and ttaching Parts. Fig. - Bendix Fuel Injector and ttaching Parts... Fig. - Fuel Lines and ttaching Parts... Fig. - Fuel Injector and Related Parts.... -. -. -. -. -. -. -7. -8-9. -0. -. - iv
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST ILLUSTRTIONS SECTION VII.... Ignition Components... Fig. - Magneto ssembly and ttaching Parts. Fig. - Magneto Ground Terminal Kits.. Fig. 7 - Wiring Harness (798)... Fig. 8 - Wiring Harness (79)... Fig. 9 - Wiring Harness (70)... Fig. 0 - Wiring Harness (779)... Fig. - Wiring Harness ttaching Parts... Fig. - Spark Plug ssembly... PGE..... 7-... 7-..... 7-... 7-..... 7-... 7-... 7-7..... 7-8. 7-9........ Vendor ccessory Parts... Bendix Pressure Carburetor Model PS-7BD.... Model PSH-7BD... Bendix Fuel Injector Model RS0FB... Bendix Scintilla Magnetos Models SLN-0, SRN-... Models SLN-0, SRN-00.. Models SLN-09, SRN-7.......... 9-............... 9-........ 9-,B........9-......... 9-........ 9-8 v
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST SUPERSEDURE SECTION GSO and IGSO-80 Series ircraft Engines to include the following models: GSO-80-,-,-B, -BB, -BC, -BE, -BJ, -BD. IGSO-80-, -B, -C, -E, -F. SECTION I - Crankcase, Crankshaft and Camshaft Group Superseded By Page No. P/N Nomenclature P/N Models ffected - - - - - - - 98 Crankcase ss'y. 7 7 Crankcase ss'y. 7 7 has piston cooling nozzles and is doweled at thru-stud locations. 99 Bearing, Crankshaft 708 7 Bearing, Crankshaft, lternate 709 7 Nozzle ss'y., Piston Cooling 777 787 Plunger ss'y., Hyd. Tappet 7890 787 Plunger ss'y., Hyd. Tappet 789 789 limited travel plunger assembly was obsoleted. 789 Plunger ss'y., Hyd. Tappet 7889 7889 Slow Leak-Down Rate 98 Crankshaft ss'y. 799 799 Crankshaft ss'y. 79 70 Bushing, Crankshaft, Dyn. Ct'wt. 780 708 Bushing, Rear Cr'shft. Spline 7 GSO-80- and -B ll ll ll ll GSO-80-B Series IGSO- 80- Series IGSO-80- Series IGSO-80-Series ll ll ll ll SECTION II - Reduction Gear ssembly Superseded By Page No. P/N Nomenclature P/N Models ffected - - - - - - - - - - -7 77 978 97 79 99 79 888 890 7 78 78 78 80 Gasket, Reduction Gear Reduction Gear ssembly Pinion Cage, ssembly Pinion Cage Spacer, Pinion Roller Housing, Oil Retaining Lockplate, Pinion Cage Nut Nut, Pinion Cage Retaining Sleeve, Prop. Shaft Seal Sleeve, Prop. Shaft Seal Ring, Prop. Shaft Seal Ring, Prop. Shaft Seal Shaft ss'y., Gov. Drive Idler 78 7879 987 897 79 89 70 70 77 97 77(8) 77(8) 788 GSO-80-BD GSO-80-B and IGSO- 80- Series ll GSO-80-B Series ll GSO-80-B Series ll ll GSO-80-B Series GSO-80-BD GSO-80-B Series GSO- 80- BD ll SECTION III - ccessory Housing ssembly Page No. Superseded By P/N Nomenclature P/N Models ffected - - - -8 9999 700 7 STD-87 99 787 Housing ssembly, ccessory Housing ssembly, ccessory Bushing Plug (llen, / pipe) Shaft, Hydraulic Pump Impeller, Oil Press. Driving 7 77 799 STD- 78 7 97 GSO- 80-B Series IGSO- 80- Series GSO-80-B Series GSO-80-B Series GSO-80-B Series GSO- 80-B Series SECTION IV - Cylinder, Piston and Valve Train Page No. P/N Nomenclature Superseded P/N By Models ffected - - - - 77 77 7 880 Rod, Connecting Bolt, Connecting Rod Piston ssembly Shaft, Valve Rocker 7808 7807 787 7 ll ll ll ll vi
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST SUPERSEDURE SECTION (CONT.) SECTION IV - Cylinder, Piston and Valve Train - Cont. Superseded By Page No. P/N Nomenclature P/N Models ffected - -7-7 -7-7 STD- 8 Screw, Pan Hd., Self-Locking /-0 x /8 7 Rod ss'y., Push 7 Rod ss'y., Push 77 Rod ss'y., Push 79 Shroud Tube ss'y. STD-9 7 7 7 789 ll ll ll ll ll SECTION V - Oil Sump ssembly Page No. P/N Nomenclature Superseded P/N By Models ffected - 70 Sump ssembly, Oil 700 ll SECTION VI - Supercharger and Induction System Page No. P/N Nomenclature Superseded P/N By Models ffected - - - - - - - - - 907 97 8 889 779 8 88 770 7 Shaftgear, Inter. Super. Drive Gear, Inter. Super. Drive, Inter. Super. Drive, Lock Shaft, ss'y., cc'y. Drive Impeller and Shaft ss'y. Spacer, Super. Impeller Nut Lockwasher, Super. Impeller, Nut Seal, Super. Drive Shaft Seal, Super. Drive Shaft 7 78 79 7 7 7 79 7 798 GSO-80-B Series GSO-80-B Series GSO-80-B Series ll ll ll ll ll ll vii
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST LYCOMING PRTS CTLOG GSO and IGSO-80 SERIES SECTION I CRNKCSE, CRNKSHFT ND CMSHFT
U "
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST SECTION I - - CRNKCSE SSEMBLY GROUP REF. NO. PRT NUMBER DESCRIPTION QTY. PER ENG. MODEL USGE 7 8 9 0 7 8 9 0 7 7 STD-7 70 979 7-0- 8- STD- 007 980 STD- 8-8D- - -0 0 STD-78 979 98 CRNKCSE SSEMBLY, Machining CRNKCSE SSEMBLY, Machining DOWEL, / dia. x / in. hollow DOWEL, Crankcase thru-stud STUD, 9/-8 x 0-/ in. long STUD, /- x 9-7/8 in. long, necked STUD, /-8 x -/8 in. long STUD, /- x -7/8 in. long STUD, /8- x -/8 in. long INSERT, Heli-coil, /-8 x / in. long RETINER, Shroud tube seal DOWEL, / dia. x /8 in. long INSERT, Heli-coil, /-0 x /8 in. long STUD, /8- N. F. x. 00 in. long STUD, /8- N. F. x -/ in. long, drilled STUD, /-0 x -/8 in. long STUD, /-0 x -/ in. long PLUG, llen, /8-7 NPT PLUG, llen, /-8 NPT DOWEL, Crankshaft bearing DOWEL, Oil transfer * ** 8 7 8 8 * - Crankcase assembly P/N 7 is doweled at thru-stud locations and can be employed on all models. ** - Crankcase assembly P/N 7 is not doweled at crankcase thru-stud locations. -
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST Figure. Crankcase ssembly l-
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST SECTION I (CONT.) - - ENGINE MOUNTING BRCKETS REF. NO. PRT NUMBER DESCRIPTION QTY. PER ENG. MODEL USGE 7 8 9 0 707 8-8- 970 70 70 MS 8-70 MS 8- STD- STD-7 STD- STD- BRCKET SSEMBLY, Engine mount, rear STUD, /8- x -/8 in. long STUD, /8- x -7/8 in. long BRCKET, Engine mount, front BRCKET, Engine mount, front BRCKET SSEMBLY, Engine mount, right rear INSERT, Heli-coil, /8- x / in. long STUD, /8- x -/ in. long BRCKET SSEMBLY, Engine mount, left rear INSERT, Heli-coil, /8- x / in. long STUD, /8- x -/ in. long WSHER, Plain, /8 in. NUT, Self-locking, /8- WSHER, Plain, / in. NUT, Self-locking, /-, C*,C,C,C B** B B B B B B C C C C * - ero Design Mounting Bracket ** - Beech Type Mounting Bracket Figure. Engine Mounting Brackets -
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST SECTION I (CONT.) - - CRNKCSE RELTED PRTS REF. NO. PRT NUMBER DESCRIPTION QTY. PER ENG. MODEL USGE 708 709 70 7890 7889 07 777 STD-9 BERING, Crankshaft BERING, Crankshaft, alternate BODY, Hydraulic tappet PLUNGER SSEMBLY, Hydraulic tappet PLUNGER SSEMBLY, Hydraulic tappet SOCKET, Push rod, hydraulic tappet NOZZLE SSEMBLY, Piston cooling PLUG, /-7 NPT 8,B 8,B, B B,B,B * * - STD-9 plug is used to plug existing piston cooling nozzle holes, if nozzles are not used. Figure. Crankcase, Related Parts -
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST SECTION I (CONT.) - - CRNKSHFT SSEMBLY REF. NO. PRT NUMBER DESCRIPTION QTY. PER ENG. MODEL USGE 7 8 9 0 79 700 8 98 780 9 7 9 790 790 9 70 790 7907 STD-88 787 70 788 CRNKSHFT ND COUNTERWEIGHT SSEMBLY CRNKSHFT ND COUNTERWEIGHT SSEMBLY TUBE, Crankshaft oil PLUG, Crankshaft oil, front TUBE, Crankshaft oil, transfer rear BUSHING, Crankshaft, dynamic counterweight BUSHING, Crankshaft, front BUSHING, Rear crankshaft spline DOWEL, Rear crankshaft spline bushing COUNTERWEIGHT SSEMBLY COUNTERWEIGHT SSEMBLY ROLLER, Dynamic counterweight ROLLER, Dynamic counterweight RING, Internal retaining WSHER, Dynamic counterweight KEY, Woodruff, / x /8 in. GER, Crankshaft timing PLTE, Crankshaft gear lock NUT, Crankshaft gear, retaining * * * **, *** 0 I * - These parts are procurable for 700 crankshaft assemblies requiring sludge tubes. quired for crankshaft without sludge tubes. They are not re- ** - Bushing, crankshaft, dynamic counterweight, P/N 70 available only until present stock exhausted. *** - Bushing, rear crankshaft spline, P/N 708 is still procurable for GSO, IGSO-80 Series engines, that do not employ increased IGSO-0 spline size. See - Lycoming Service Instruction #. -
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST REF. NO. PRT NUMBER DESCRIPTION QTY. PER ENG. MODEL USGE 0 7 00 9 Figure. Crankshaft ssembly -
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST SECTION I (CONT.) i- - CMSHFT SSEMBLY 70 CMSHFT SSEMBLY STD 0 DOWEL, Stepped,.0 and. dia. x / in. long 9 SCREW, /-x 7/in. long 078 LOCKPLTE, / in. bolt x -/ in spacing Figure. Camshaft ssembly l-
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST SECTION I (CONT.) -7 - CRNKCSE TTCHING PRTS REF. NO. PRT NUMBER DESCRIPTION QTY. PER ENG. MODEL USGE 7 8 9 0 N- N- N- STD- STD-87 STD-7 STD-78 STD-9 080 N- N- N- STD-8 STD- 0 STD-9 STD-97 BOLT, Hex. hd., drilled shank /8- x -/ in. long BOLT, Hex. hd., drilled shank /8- x -7/ in. long BOLT, Hex. hd., /8- x -/ in. long WSHER, Plain /8 in. NUT, Slotted, /8- PIN, / dia. x / in. long WSHER, Shakeproof /8 in. NUT, Plain, /8- STRP, Lifting BOLT, Hex. hd., /-8 x -/ in. long BOLT, Hex. hd., /-8 x -9/ in. long BOLT, Hex. hd., /-8 x -/ in. long WSHER, Plain, / in. WSHER, Shakeproof lock, / in. NUT, Plain, /-8 7 NUT, Slotted, /-8 See note NOTE Lycoming has available, as an option, -00 Series low tension magnetos. These magnetos require special crankcase attaching parts. listing of these attachments is available from Service Department, Lycoming Division, Williamsport, Pa. 770. 8 Figure. Crankcase -7 ttaching Parts
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST LYCOMING PRTS CTLOG GSO and IGSO-80 SERIES SECTION II REDUCTION GER SSEMBLY
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST SECTION II - REDUCTION GER SSEMBLY REF. NO. PRT NUMBER DESCRIPTION QTY. PER ENG. MODEL USGE 7 8 9 0 7 8 9 0 78 STD-99 7879 780 977 970 788 09 00 0 97 N-- 97 97 77 9 STD-798 STD-89 8-7 8 0 STD-0-0 STD-7 77 78 7 GSKET, Reduction gear housing RING, Oil seal, / in. ID x / dia. GER SSEMBLY, Reduction (splined shaft) GER SSEMBLY, Reduction (flanged shaft) GER SSEMBLY, Ring GER, Ring PLTE, Ring gear, drive CIRCLIP, Ring gear CIRCLIP, Ring gear CIRCLIP, Ring gear LOCK RING, Gear circlip RIVET,.09 in. dia. x /8 in. long HOUSING SSEMBLY, Reduction gear and gov. HOUSING SSEMBLY, Reduction gear and gov. SLEEVE, Reduction gear housing SLEEVE, Reduction gear housing DOWEL, / dia. x 9/ in. long DOWEL, /8 dia. x 9/ in. long STUD, /8- x -/8 in. long STUD, /-8 x -9/ in. long PLUG, llen head, /8-7 NPT DOWEL, / in. dia. x /8 in. long STUD, /-0 x -/ in. long PIN,. 8 to. 9 dia. x / in. long BUSHING, Governor drive, rear BUSHING, Governor drive, front DOWEL, Stationary gear drive,b,b B,B,B,B R,B R,B R, B I,B,B i B B B,B B,B,B,B,B,B,B B 0 7 I 7 r 8 Figure 7. Reduction Gear and Housing ssembly -
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST SECTION II (CONT.) - - STTIONRY GER ND PINION CGE SSEMBLY QTY. REF. PRT DESCRIPTION PER MODEL NO. NUMBER ENG. USGE 97 GER SSEMBLY, Stationary 978 GER SSEMBLY, Stationary B 979 GER, Stationary, B 8087 PLTE, Stationary gear drive 980 PLTE, Stationary gear drive B 99 CIRCLIP, Stationary gear R, B 99 CIRCLIP, Stationary gear R, B 99 CIRCLIP, Stationary gear R, B 99 CIRCLIP, Stationary gear R, B 7 STD- WSHER, Plain, / in. 8 8 BOLT, Reduction gear drive plate stationary 9 STD-0 NUT, Castle, /-, B 0 STD-8 PIN, Cotter, / dia. x / in. long 987 CGE SSEMBLY, Pinion, B 897 CGE, Pinion, B 98 SHFT, Pinion, B 987 CUP, Pinion shaft oil retaining, B 0 PIN, Pinion shaft, B 98 ROLLER, Pinion 0, B 7 79 SPCER, Pinion roller, B (Replaces 99) 8 79 GER, Pinion, B 9 79 GSKET, Housing, oil retaining, B 0 89 HOUSING, Oil retaining, B (Replaces 79) STD-0 SCREW, Fill. hd., drilled, /-8x/8 in. long, B 70 LOCKPLTE, Pinion cage nut, B (Replaces 888) 70 NUT, Pinion cage retaining, B (Replaces 890) 77 RING, Prop. shaft seal (Replaces 78) 8 77 RING, Prop. shaft seal B 77 SLEEVE, Prop. shaft seal (Replaces 7) 97 SLEEVE, Prop. shaft seal (Replaces 78) B 0 Figure 8. Stationary Gear and Pinion Cage - Revised March, 970
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST SECTION II (CONT.) - - PROPELLER SHFT, THRUST BERING ND CP SSEMBLY REF. NO. PRT NUMBER DESCRIPTION QTY. PER ENG. MODEL USGE 7 8 9 0 70 780 STD-9 STD-9 98 77 00 8 89 007 STD- STD-9 SHFT, Propeller SHFT SSEMBLY, Propeller PLUG,.8 to.9 dia. x / in. long KEY, Woodruff, /8 in. x / in. GER, Governor drive BERING, Thrust SLINGER, Thrust bearing oil SHIM, Thrust bearing cap CP SSEMBLY, Thrust bearing CP, Thrust bearing SEL, Thrust bearing SPCER, Thrust bearing cap nut WSHER, Plain, /8 in. NUT, Thin, self-locking, /8- B B, B, B, B, B, B, B, B, B, B, B, B 0 8 0 8 7 Figure 9. Propeller Shaft, Thrust Bearing and Cap ssembly Revised March, 970 -
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST - - SECTION II (CONT.) GOVERNOR DRIVES ND GOVERNOR DRIVE DPTER 7 8 0 8 0 800 0 0 STD-798 80 0 0 8 89 STD-0 70 98 99 9 0 0 STD-9-0 STD- 70 7 GER SSEMBLY, Governor drive idler BUSHING, Governor drive idler BUSHING, Governor drive idler DOWEL,.0907 dia. x 9/ in. long WSHER, Governor drive idler, thrust R WSHER, Governor drive idler, thrust R WSHER, Governor drive idler, thrust R SHFT SSEMBLY, Governor drive idler (Replaces 80) SHFT, Governor drive idler (Replaces 80) PLUG, Slotted, /-8 x / in. long GSKET, Governor drive adapter SHIM, Governor drive adapter DPTER SSEMBLY, Governor drive DPTER SSEMBLY, Governor drive PLUG, llen head, /8-7 NPT BUSHING, Governor drive adapter DOWEL, / in. x / in. long STUD, /-8 x -/ in. long GER, Governor driven CIRCLIP, / ID x / dia. wire GSKET, Governor drive COVER, Governor drive 9 Figure 0. Governor Drives and Governor Drive dapter -
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST SECTION II (CONT.) - - REDUCTION GER TTCHING PRTS REF. NO. PRT NUMBER DESCRIPTION QTY. PER ENG. MODEL USGE 7 8 9 0 STD- STD-7 STD-7 STD- 8 STD- 0 STD-9 STD- 9 88 STD- STD-78 STD-9 78 7 8 STD- 90 WSHER, Plain, / in. WSHER, Internal lock, / in. NUT, Plain, /- NF- WSHER, Plain, / in. WSHER, Internal lock, / in. NUT, Plain, /-8 NF- (Governor drive adapter attaching parts) GSKET,. 00 ID x -/ OD x / annular PLUG, Hex. hd., -/ x. 00-0 THD PIN, Engine timing WSHER, Plain, /8 in. WSHER, Internal lock, /8 in. NUT, Plain, /8- BOLT, Crankshaft flange, See figure 7 () NUT, Crimp lock, /8-, See figure 7 () PLTE, Name DRIVE STUD, # x / in. long (To attach nameplate) 8 8 8 8 8 8 7 0 9 0 Figure. Reduction Gear ttaching Parts -
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST LYCOMING PRTS CTLOG GSO and IGSO-80 SERIES SECTION III CCESSORY HOUSING ND COVER SSEMBLY
Scav. Pump -9 Oil Pr. Rel. Vlv. -0 cc'y. Covers - LYCOMING PRTS CTLOG GSO, IGSO-80 SERIES ENGINES SECTION III CCESSORY HOUSING SSEMBLY Page Numbers Engine Model cc'y. Hsg. & tt. Pts. - Shaftgear ss'ys. - Mag. Tach. Str. Drives - Mag. Fuel. Inj. Dr. Str. dapt. - Breather - cc'y. Hsg. Cover -7 Oil Pump ss'y. -8 GSO-80-,B,B GSO-80-, B GSO-80-B,B GSO-80-BB, C, B,B,B, B GSO-80-BC,B GSO-80-BC, B GSO-80-BJ,B GSO-80-BD, B IGSO-80-l B,B B C C C IGSO-80-B B, B B C C C IGSO-80-C B, B B C C C IGSO-80-E C,B B B B B IGSO-80-F B,B B C C C -
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST SECTION III - - CCESSORY HOUSING ND TTCHING PRTS REF. NO. PRT NUMBER DESCRIPTION QTY. PER ENG. MODEL USGE 7 8 9 0 7 8 9 0 7 8 9 0 7 8 9 0 7 77 77 STD- 799 STD- 7 8 STD- 9 77 STD- 89 7 0 8 - - -0-7 - - - -7-8 D- STD-99 STD-8 STD- 0 STD-9 STD- 0 STD-879 - - - - - 8-98 STD-78 98 STD-9 STD- STD-7 9 9 HOUSING SSEMBLY, ccessory HOUSING SSEMBLY, ccessory HOUSING SSEMBLY, ccessory INSERT, Heli-coil, /-0 x / in. long BUSHING, - /8 ID x - 7/ OD x / in. long DOWEL, /8 dia. x / in. long BUSHING, -/ OD x. 00 ID x. 00 in. long BUSHING, -/8 OD x -/ ID x / in. long, flanged DOWEL, / dia. x / in. long DOWEL, / dia. x / in. long BUSHING, -7/8 OD x -/ ID x / in. long DOWEL, /8 dia. x 9/ in. long BUSHING, -/ OD x 7/8 ID x -7/ in. long PLUG, llen, /8-7 NPT STUD, /-0 x -7/ in. long, drilled STUD, /-0 x -/ in. long STUD, /-0 x -/8 in. long STUD, /-0 x.00 in. long STUD, /-0 x -/8 in. long STUD, /-0 x -/ in. long STUD, /-0 x. 00 in. long STUD, /-0 x -7/8 in. long STUD, /-0 x -/8 in. long STUD, /-0 x -/ in. long STUD, /-0 x. 00 in. long, drilled DOWEL, Oil, 7/ ID x / in. long WSHER, Plain, / in. WSHER, Internal lock, / in. NUT, Plain, /-8 BOLT, Hex. hd., /-8 x -9/ in. long BOLT, Hex. hd., /-8 x -/ in. long STUD, /-8 x -/ in. long STUD, /-8 x -/ in. long STUD, /-8 x -/ in. long STUD, /-8 x. 00 in. long STUD, /-8 x -/8 in. long STUD, /8- x. 00 in. long NNULUS, Oil seal PLUG, llen, / pipe PIN, Timing PLUG, llen, /-7 pipe GSKET,. 00 ID x -/ OD x / annular PLUG, llen, /8 pipe PLUG, /8 hex. hd.,. 00-0 Thd. PLUG, / dia. x / in. long i B C, B, C, B, C, B, C, B, C, B, C, B, C, B, C, B, C, B, C, B, C, B, C 8, B, C, B, C, B, C, B, C, B, C, B, C, B, C, B, C,B C, B, C, B, C, B, C, B C,B,C,B,C,B,C B,B B, B, B.B i,b, B, B, B, B,B, B -
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST REF. NO. PRT NUMBER DESCRIPTION QTY. PER ENG. MODEL USGE -9-7 - 9 7 0 9 7 8 0 8 0 8 Figure. ccessory Housing and ttaching Parts -
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST SECTION III (CONT. ) - - GER TRIN (SHFTGER SSEMBLIES) REF. NO. PRT NUMBER DESCRIPTION QTY. PER ENG. MODEL USGE 778 STD- 770 STD- 708 790 977 SHFTGER SSEMBLY, Fuel pump drive OIL SEL, / ID x -/8 OD x / in. wide SHFTGER SSEMBLY, Vacuum pump SEL, -7/ OD x.00 ID x / in wide WSHER, Generator drive gear, thrust SHFTGER SSEMBLY, Generator drive, B, B,B,B, B, B Figure. Shaftgear ssemblies -
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST SECTION III (CONT. ) - - MGNETO, TCHOMETER ND STRTER DRIVES REF. NO. PRT NUMBER DESCRIPTION QTY. PER ENG. MODEL USGE 7 8 9 0 7 8 9 0 78 STD- 8 STD- 80 STD- N8--0 8 88 8 STD- 9 87 8 N000 N00 STD- 80 STD- 7 70 78 709 79 N907 SHFT, Magneto drive idler WSHER, / dia. (seal) SCREW, Flat fill. hd., drilled shank, /- x -/8 in. long NUT, Slotted, /- PIN, Cotter, / dia. x /8 in. long WSHER SSEMBLY, Magneto drive idler shaft HUB SSEMBLY, Magneto drive idler BUSHING, Magneto drive idler gear DOWEL, / dia. x 7/ in. long SLINGER, Oil GER, Magneto drive idler BOLT, Drive end, /-8 x / in. long BOLT, Drive end, /-8 x -/ in. long NUT, Slotted shear, /-8 GER SSEMBLY, Tachometer driven SEL, 9/ ID x -/ OD x / in. wide GER SSEMBLY, Starter drive (not illustrated) GER, Starter drive GER, ccessory drive DOWEL, / dia. x 7/ in. long, hollow pin SCREW, Fill. hd., drilled, /-8 x / in. long, B, B, B, B, B,B, B, B, B, B, B B, B, B, B, B, B, B, B, B I 9 7 I 0 7 9 0 7 9 8 0 Figure. Magneto, Tachometer and Starter Drives -
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST SECTION III (CONT.) - - MGNETO DRIVE, STRTER DRIVE DPTER ND FUEL INJECTOR DRIVE REF. NO. PRT NUMBER DESCRIPTION QTY. PER ENG. MODEL USGE 7 8 9 0 7 8 9 0 7 8 9 9 9 8 8 79 STD- 00 99 99 970 970 98 797 STD- 70 98 STD-8 STD-97 7708 78 7709 89 79 7 STD- 9 STD-8 STD-9 STD-97 STD- 70 70 STD- 709 7 88 0 SHFT SSEMBLY, Magneto drive SLEEVE, Magneto drive shaft GER, Magneto drive shaft GER, Magneto drive shaft SHFT, Injector drive CIRCLIP, -/ ID x / wire WSHER, Magneto drive WSHER, Magneto drive RING, Magneto drive, gear retaining RING, Magneto drive, gear retaining GER, Fuel injector idler BLL BERING, Magneto idler RING, -/ OD x / internal retaining SHFT, Fuel injector idler WSHER, Plain, / in. NUT, Slotted, /-8 GSKET, Starter drive adapter RING, /8 dia. section x -/ ID, oil seal SHIM, Starter drive adapter DPTER SSEMBLY, Starter drive BUSHING, -/ OD x -/ ID x. 00 in. long BUSHING, -/ OD x -/ ID x. 00 in. long DOWEL, / dia. x / in. long WSHER, Plain, / in. WSHER, 7/ ID x / OD x / in. thick NUT, Slotted, /-8 SEL, -/8 OD x -/ ID x / in. wide JW, Starter CIRCLIP, -/ OD x / dia. wire GSKET, Starter drive pad DPTER, Starter PLUG, llen, /8-7 NPT, B, C, B, C, B C C C, B C, B C C C C C C C, B, C, B, C, B, C, B, C, B, C, B, C, B, C R, B, C, B, C, B, C, B,C, B, C, B, C, B, C, B, C 9 0 9 Figure. Magneto Drive, Starter Drive dapter, and Fuel Injector Drive -
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST SECTION III (CONT.) - - CCESSORY HOUSING BRETHER REF. NO. PRT NUMBER DESCRIPTION QTY. PER ENG. MODEL USGE 7 8 77 70 9907 97 STD-8 STD- 0 STD- 9 STD- STD- GSKET. ccessory housing breather TUBE ND PLTE SSEMBLY, ccessory housing breather BRETHER, ccessory housing BRETHER, ccessory housing WSHER, Plain, / in. WSHER, Internal lock, / in. BOLT, Hex. hd., /-0 x -/8 in. long BOLT, Hex. hd., /-0 x -/ in. long, not ill. BOLT. Hex. hd., /-0 x -/ in. long, not ill., B, C, B, C B,C, B,C, B,C B,C I Figure. ccessory Housing Breather -
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST SECTION III (CONT.) -7 - CCESSORY HOUSING COVER REF. NO. PRT NUMBER DESCRIPTION QTY. PER ENG. MODEL USGE 7 8 9 0 7 8 8 709 709 7 STD-9 890 7 7 STD-9 STD- 0 - D- STD- - 8- STD- 78 0 STD- 0-9 STD- 9 GSKET, ccessory housing cover COVER SSEMBLY, ccessory housing COVER SSEMBLY, ccessory housing BUSHING, -/ OD x.00 ID x -/8 in. long DOWEL, /8 dia. x 7/ long BUSHING, -/ OD x.00 ID x -/ in. long BUSHING, - / ID x -/ OD x / in. long BUSHING, -/ ID x - / OD x / in. long DOWEL, /8 dia. x 7/ in. long PLUG, Square head, drilled, /- NPT STUD, /-0 x -/ in. long STUD, /-0 x. 00 in. long DOWEL, /8 dia. x / in. long STUD, /-8 x -/ in. long STUD, /8- x -7/8 in. long PLUG, llen hd., /-8 NPT PLUG, llen hd., /8-7 NPT PLUG,.0 to.0 dia. x / in. long STUD, /-0 x -/8 in. long PLUG, llen, /-7 NPT, B, C, B C, B, C, B, C, B, C, B C, B, C, B, C, B, C, B, C, B, C, B, C, B, C, B, C, B, C, B, C, B, C C - 9 9-8 II 0-0 9 9 7 7-7 _ 8 Figure 7. ccessory Housing Cover -7
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST SECTION III (CONT.) -8 - OIL PUMP SSEMBLY REF. PRT DESCRIPTION PER MODEL NO. NUMBER ENG.USGE 7090 PUMP SSEMBLY, Oil (not illustrated) 7087 BODY SSEMBLY, Oil pressure pump 08-B BLL, / dia. 7999 RETINER, Ball check valve 8 BUSHING, Oil pump drive shaft -B SPRING, Check valve 7 STD-9 DOWEL, / dia. x / in. long 8 D- STUD, /-0 x -7/8 in. long 9 STD-9 PLUG,.8 to.9 dia. x / in. long 0 MS00 INSERT, Heli-coil, /-8 x / in. long D- STUD, /-0 x.00 in. long D- STUD, /-0 x -/ in. long 87 SLEEVE, Oil relief valve STD- INSERT, Heli-coil, /-8 x /8 in. long - STUD, /-8 x -/ in. long - STUD, /-0 x -/ in. long 7 77 DOWEL, Oil pump 8 7 SHFT, Hydraulic pump or oil pump 9 STD-97 KEY, Woodruff, /8 x / in. dia. 0 97 IMPELLER, Oil pressure pump, driving 80 IMPELLER, Oil pressure pump, driven 8 GSKET, Hydraulic and oil pump Fuel 8 ssmbly 0 9 9 Figure 8. Oil Pump ssembly -8
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST SECTION III (CONT.) -9 - OIL SCVENGE PUMP REF. NO. PRT NUMBER DESCRIPTION QTY. PER ENG. MODEL USGE 7 8 9 0 88 80 8 8 STD- 9 8 8 N8--0 8 STD-8 STD-7 STD- 87 STD- STD- 0 SPCER, Oil pressure and oil scavenge pump IMPELLER, Oil scavenge pump, driving IMPELLER, Oil scavenge pump, driven BODY SSEMBLY, Oil scavenge pump BUSHING, Oil pump drive shaft DOWEL, / dia. x / in. long SHFT, Oil pump idler, long SHFT, Oil pump idler, short PIN, /8 dia. x -/ in. long, cotter STRINER, Oil scavenge pump WSHER, Plain, / in. PLUG, llen, /8 pipe NUT, Slotted shear, /-8 GER, Oil pressure and scavenge pump NUT, Slotted shear PIN, / dia. x.00 in. long, cotter / 9 II 7 0 Figure 9. Oil Scavenge Pump -9
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST SECTION III (CONT. ) -0 - OIL FILTER, ND OIL PRESSURE RELIEF VLVE REF. PRT DESCRIPTION PER MODEL NO. NUMBER ENG.USGE STD- 08 OIL SEL, 7/8 ID x -/ OD x / wide 700 WSHER, Oil filter assembly 778 OIL FILTER SSEMBLY N900-8 GSKET, -/ ID x.00 OD x / in. annular 777 COVER, Oil filter 798 PLUNGER, Oil relief 7 8 SPRING, Oil pressure relief 8 N900- GSKET, / ID x / in. thick, annular 9 NUT, Relief valve adjusting, lock 0 7 SCREW, Oil relief valve, adjusting 790 NUT, Oil relief, crown Figure 0. Oil Filter and Oil Pressure Relief Valve -0
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST SECTION III (CONT.) - - CCESSORY COVERS, GSKETS ND TTCHING PRTS QTY. PRT MODEL REF. PRT DESCRIPTION MODEL USGE NO. NUMBER ENG. USGE N07- GSKET, ccessory drive 7-B COVER, Starter and generator STD- WSHER, Plain, /8 in. STD-78 WSHER, Internal lock, /8 in. STD-9 NUT, Plain, /8- x / thick 8 GSKET, Vacuum pump 7 00 COVER, Vacuum pump 8 STD-8 WSHER, Plain, / in. 8 9 STD-0 WSHER, Internal lock, / in. 8 0 STD-9 NUT, Plain, /-8 8 9-C GSKET, Fuel pump 0 COVER, Fuel pump STD- WSHER, Plain, / in. STD-7 WSHER, Internal lock, / in. STD-7 NUT, Plain, /- 0 GSKET, Vacuum pump 7 7 COVER, Vacuum pump 8 STD- WSHER, Plain, / in. 9 STD-7 WSHER, Internal lock, / in. 0 STD-7 NUT, Plain, /- NOTE ll accessory covers, gaskets and attaching parts will be found on the other figures in this section. -
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST LYCOMING PRTS CTLOG GSO and IGSO-80 SERIES SECTION IV CYLINDER, PISTON ND VLVE TRIN
Int. & Exh. Flanges & Baffles -8 LYCOMING PRTS CTLOG GSO, IGSO-80 SERIES ENGINES SECTION IV CYLINDER, PISTON ND VLVE TRIN Page Numbers Engine Model Conn. Rods Brg's. - Piston ss'y. - Cylinder ss'y. - Valve ss'y. - Valve Rocker ss'y. - Push Rod -7 GSO-80- GSO-80- GSO-80-B,B,B,B GSO-80-BB GSO-80-BC,B,B,B GSO-80-BE GSO-80-BJ,B B B GSO-80-BD,B,B,B IGSO-80-,B,B,B IGSO-80-B,B, B,B IGSO-80-C IGSO-80-E B B B IGSO-80-F -
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST SECTION IV - CONNECTING RODS ND BERINGS REF. NO. PRT NUMBER DESCRIPTION QTY. PER ENG. MODEL USGE 77 7808 89 77 7807 7 77 78 ROD SSEMBLY, Connecting ROD SSEMBLY, Connecting BUSHING, Connecting rod, upper BOLT, Connecting rod BOLT, Connecting rod NUT, Connecting rod BERING, Connecting rod BERING, Connecting rod (lternate and use in pairs) * * * - See Lycoming Service Instruction #8 for full details on 7808 connecting rod assembly. I Figure. Connecting Rod ssembly -
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST SECTION IV (CONT.) - - PISTON ND PISTON RING SSEMBLIES REF. NO. PRT NUMBER DESCRIPTION QTY. PER ENG. MODEL USGE 7 7 778 797 90 798 77 7 7 77 7998 7 787 9 PISTON, ring PISTON, ring, See note PISTON, ring PISTON, ring PIN, Piston PLUG, Piston pin RING, Piston, top compression (cyl's. 79, 780, 79) RING, Piston, top compression (cyl. 7) RING, Piston, top compression (cyl. 789, 79) RING, Piston, top compression (cyl's. 79, 780, 79) RING, Piston, oil regulating, expander type RING, Piston, oil regulating, expander type RING, Piston, oil regulating, expander type RING, Piston, scraper (cyl's. 789, 79, 780, 79) NOTE Piston, Lycoming P/N 7, is being maintained in stock, for use in cylinder assembly P/N 789 which is no longer available.,b,b,b,b,b,b,b,b,b 8,B,B,B,B,B - Figure. Piston and Ring ssembly -
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST SECTION IV (CONT.) - - CYLINDER SSEMBLY REF. NO. PRT NUMBER DESCRIPTION QTY. PER ENG. MODEL USGE 7 8 9 0 79 7 79 780 789 789 7 788 7897 90 P0 79 P0 - -8 70 N8- D 7 7 79 CYLINDER SSEMBLY, Chrome ( or ring piston) CYLINDER SSEMBLY, Nitrided ( ring piston) CYLINDER SSEMBLY, Chrome (, or ring piston) CYLINDER SSEMBLY, Chrome ( or ring piston) SET, Intake valve SET, Exhaust valve GUIDE, Intake valve GUIDE, Exhaust valve GUIDE, Exhaust valve INSERT, Spark plug, 8-. mm (long reach) INSERT, Spark plug, 8-. mm (short reach) STUD, /-8 x -/ in. long STUD, /-0 x. 00 in. long BUSHING, Rocker shaft, inner ELBOW, /8 flared tube, / pipe Thd. STBILIZER, Cylinder head fins, teeth STBILIZER, Cylinder head fins, teeth, not ill. STBILIZER, Cylinder head fins, 0 teeth, not ill. B C D, B, C, D, B, C, D, B, C, D, B, C, D, B, C, D, B, C, D, B, C, D,B,C,D,B,C,D,B,C,D,B,C,D, B, C, D,B,C,D, B,C,D 7 7 9 0 Figure. Cylinder ssembly -
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST SECTION IV (CONT.) - - VLVES ND RELTED PRTS REF. NO. PRT NUMBER DESCRIPTION QTY. PER ENG. MODEL USGE 7 8 9 0 79 780 78 7 8 7 8 88 7 8 87 MS-997-700 0009 MS- 998-997 VLVE, Intake VLVE, Exhaust, rotator type (inconel) VLVE, Exhaust, rotator type, 7/ in. dia. VLVE, Exhaust, rotator type, / in. dia. SET, Valve spring, lower SET, Valve spring, lower, / in. dia. valve SPRING, Valve, outer SPRING, Valve, auxiliary SET, Valve spring (rotator type), / in. dia. valve SET, Valve spring (rotator type), 7/ in. dia. valve SET, Valve spring KEY, Valve, rotator type KEY, Valve, rotator type, 7/ in. dia. valve KEY, Valve CP, Valve stem CP, Valve stem, 7/ in. dia. valve, B, B *, B, B, B, B, B, B *, B, B *, B, B * * - Parts marked in this exhaust valve. manner are still available for cylinder assemblies employing a 7/ in. dia. I 0 8-9 7 Figure. Valves and Related Parts -
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST SECTION IV (CONT.) - - VLVE ROCKER SSEMBLY REF. NO. PRT NUMBER DESCRIPTION QTY. PER ENG. MODEL USGE 7 8 9 0 79 7 7 7 7 7 STD- 0 STD-9 7 7 79 879 STD- 9 79 WSHER, Valve rocker thrust (See Lycoming Service Bulletin # for details) ROCKER SSEMBLY, Intake valve BUSHING, Valve rocker SHFT, Valve rocker GSKET, Valve rocker shaft cover COVER, Valve rocker shaft WSHER, Shakeproof lock, / in. NUT, Plain, /-8 ROCKER SSEMBLY, Exhaust valve BUSHING, Valve rocker GSKET, Rocker box cover COVER SSEMBLY, Rocker box SCREW, Pan hd., self-locking, /-0 x /8 in. long PLTE, Spark plug reach caution (not illustrated) 8 * * - To designate short reach spark plugs. 8 7 9 Figure. Valve Rocker ssembly -
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST SECTION IV (CONT.) -7 - PUSH RODS ND SHROUD TUBES REF. NO. PRT NUMBER DESCRIPTION QTY. PER ENG. MODEL USGE 7 7 7 777 77 78 0 9 ROD SSEMBLY, Push ROD SSEMBLY, Push Use a total of ROD SSEMBLY, Push SHROUD TUBE SSEMBLY, Push rod SPRING, Shroud tube WSHER, / ID x -/ OD x / in. thick SLEEVE, Shroud tube seal SEL, Shroud tube I Figure 7. Shroud Tubes and Push Rods -7
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST SECTION IV (CONT.) -7 - CYLINDER HED OIL DRIN TUBES REF. NO. PRT NUMBER DESCRIPTION QTY. PER ENG. MODEL USGE 7 8 7787 STD-8 STD-8 STD-9 78 9 7 7 TUBE SSEMBLY, Cylinder head oil drain NIPPLE, Straight, /8 ID hose HOSE, /8 in. dia. x -/ in. long CLMP; Hose, / to / ID x /8 in. wide RING, Oil seal, / dia. section x -7/ ID PLTE, Cylinder hold down NUT, llen head, /-0 NF- NUT, llen head, /8- NF- 8 7 Figure 8. Cylinder Head Oil Drain Tubes -7
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST SECTION IV (CONT.) -8 - INTKE ND EXHUST FLNGES REF. NO. PRT NUMBER DESCRIPTION QTY. PER ENG. MODEL USGE 0 7 STD- STD-7 STD-7 79 GSKET, bolt flange, -/ in. ID FLNGE, Intake pipe upper, not illustrated WSHER, Plain, / in. WSHER, Internal lock, / in. NUT, Plain, / in. FLNGE, Exhaust B I Figure 9. Intake and Exhaust Flanges -8
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST SECTION IV (CONT.) -8 - INTERCYLINDER BFFLE SSEMBLIES REF. NO. PRT NUMBER DESCRIPTION QTY. PER ENG. MODEL USGE 7 8 997 70 7 STD- 87 STD- 8 70 707 BFFLE SSEMBLY, Intercylinder HOOK, Intercylinder baffle retainer RETINER, Intercylinder baffle PLUG, Baffle attaching WSHER, External teeth #0 SCREW, Fill. hd., #0- x 7/ in. long CLIP, Rear baffle upper attachment CLIP SSEMBLY, Left rear baffle * * * - For Beech installations only. 7 Figure 0. Intercylinder Baffles Revised March, 970-8
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST LYCOMING PRTS CTLOG GSO and IGSO-80 SERIES SECTION V OIL SUMP ND RELTED PRTS
0
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST SECTION V - - OIL SUMP SSEMBLY ND OIL SCVENGE SCREEN 87 700 90 - STD-7 STD-8 7 STD- 8 9 9 STD-0 0 STD-0 STD-8 STD-0 STD-9 STD-79 STD-0 89 7 898 8 89 79 STD-98 GSKET, Oil sump SUMP SSEMBLY, Oil CONNECTION, Intake pipe STUD, /-0 x -/8 in. long INSERT, Heli-coil, /-0 x / in. long INSERT, Heli-coil, /- x /8 in. long GSKET,.00 ID x -/ OD x / in. annular PLUG, /8 in. hex. hd.,.00-0 Thd. PLUG, Square head, drilled, / NPT PLUG, Square head, drilled, /8 pipe WSHER, Plain, / in., not illustrated WSHER, Internal lock, / in., not illustrated NUT, Plain, /-8, not illustrated BOLT, Hex. hd., /-8 x. 00 in. long, not illustrated BOLT, Hex. hd, /-8 x -9/ in. long, not ill. (Oil sump attaching parts) GSKET, Oil scavenge screen retainer SCREEN SSEMBLY, Oil scavenge pump RETINER Oil scavenge screen SCREEN, Oil scavenge pump SCREW. Drilled head. /-0 x / in. long ( To attach oil scavenge pump screen) 0 0 NOTE Reference numbers 8 and 9 are detail parts of 898 assembly and are not procurable alone. 7 0 8 7 IO Figure. Oil Sump ssembly and Oil Scavenge Screen -
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST SECTION V (CONT.) - - SUPERCHRGER OUTLET PIPE SSEMBLY REF. NO. PRT NUMBER DESCRIPTION QTY. PER ENG. MODEL USGE 7 89 77 STD-7 80 STD-0 STD-8 STD-0 STD-9 PIPE, Supercharger outlet PIPE, Supercharger outlet RING, -/ ID x /8 dia. section FLNGE, Supercharger outlet pipe BOLT, Hex. hd., /-8 x -9/ in. long WSHER, Plain, / in. WSHER, Internal lock, / in. NUT, Plain, /-8 (To attach supercharger outlet pipe flange) B,B,B,B 9,B,B,B I I 7 Figure. Supercharger Outlet Pipe ssembly -
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST SECTION V (CONT.) - - INTKE PIPE SSEMBLIES ND TTCHING PRTS REF. NO. PRT NUMBER DESCRIPTION QTY. PER ENG. MODEL USGE 7 8 0 7 990 99 99 STD-8 STD-0 STD- 90 STD-9 GSKET, bolt flange, -/ in. ID FLNGE, Intake pipe, upper PIPE, Intake, cylinders, and PIPE, Intake, cylinders, and PIPE, Intake, cylinders, and WSHER, Plain, / in. WSHER, Internal lock, / in. BOLT, Hex. hd., /-0 x -/ in. long HOSE, -/ ID x -/ OD x -/ in. long CLMP, Hose, -7/8 to -/ ID x 9/ in. wide '-0-7 8 Figure. Intake Pipe ssemblies - and ttaching Parts
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST LYCOMING PRTS CTLOG GSO and IGSO-80 SERIES SECTION VI SUPERCHRGER ND INDUCTION SYSTEM
Fuel Inj. -0 Fuel Lines - Fuel Inj. Rel.Pts. - LYCOMING PRTS CTLOG GSO, IGSO-80 SERIES ENGINES SECTION VI SUPERCHRGER ND INDUCTION SYSTEM Page Numbers Engine Model cc'y. and Super Drives - Super Hsg. - Imp. and Shaft ss'y. - Super Drive and dapt. - ir In. Hsg. - Prim. Carb. System -7-8 Fuel Inj. System -9 GSO-80-,B,B,B, B, C GSO-80- B C GSO-80-B,B, B, C, D GSO-80-BB,B,B,B GSO-80-BC,B B C GSO-80-BE GSO-80-BJ GSO-80-BD,B D,E D E IGSO-80- B,C C IGSO-80-lB B C IGSO-80-C B,B E B B B IGSO-80-lE B B E F C C IGSO-80-F B B E B B B -
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST SECTION VI - - MIN CCESSORY ND SUPERCHRGER DRIVES REF. NO. PRT NUMBER DESCRIPTION QTY. PER ENG. MODEL USGE 7 8 9 0 7 8 9 0 7 8 9 0 78 70 STD- STD-8 8 8099 70 STD-798 7 770 STD-798 98 880 778 778 78 78 STD- 9 STD- 00 70 0 7 N0-- 7 7 7 78 79 77 7797 SHIM, ccessory drive shaft adapter DPTER SSEMBLY, ccessory drive shaft INSERT, Heli-coil, /-8 x / in. long WSHER, Plain, / in. NUT, /-8 special GER SSEMBLY, Supercharger and accessory drive BUSHING, Supercharger and accessory drive gear DOWEL, / dia. x 9/ in. long SHFT SSEMBLY, ccessory drive BUSHING, ccessory drive shaft DOWEL, / dia. x 9/ in. long TUBE, ccessory drive shaft oil transfer SPRING, Supercharger drive coupling GUIDE, Supercharger drive coupling, long GUIDE, Supercharger drive coupling, short PLTE, Supercharger drive coupling LOCKPLTE, Supercharger drive coupling BOLT, Hex. hd., #0- x 7/ in. long RING, Oil seal, 7/ ID x / dia. WSHER, ccessory drive shaft, thrust BERING, ccessory idler gear PLTE, ccessory drive shaft adapter SCREW, Fill. hd., drilled, /-8 x / in. long LOCKWSHER, ccessory drive shaft NUT, ccessory drive shaft SHFTGER, Intermediate supercharger drive GER, Intermediate supercharger drive WSHER, Intermediate supercharger drive WSHER, Lock, intermediate supercharger drive NUT, Supercharger intermediate drive shaft 8 8 -
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST REF. NO. PRT NUMBER DESCRIPTION QTY. PER ENG. MODEL USGE 8 7 7 89 0 8 7 9 0 0 9 Figure. Main ccessory and Supercharger Drives -
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST SECTION VI (CONT. ) - - SUPERCHRGER HOUSING REF. NO. PRT NUMBER DESCRIPTION QTY. PER ENG. MODEL USGE 7 8 9 0 77 70 799-0 -0 - - 8 0 STD- 9 809 STD-8 STD- 0 STD-9 GSKET, Supercharger housing HOUSING SSEMBLY, Supercharger HOUSING SSEMBLY, Supercharger STUD, /-0 x -/ in. long STUD, /-0 x -/ in. long STUD, /-0 x -/8 in. long STUD, /-0 x -/8 in. long STUD, Supercharger housing PLUG, llen, /8-7 NPT PLUG, llen, /-7 Pipe DIFFUSER, Supercharger WSHER, Plain, / in. WSHER, Internal lock, / in. NUT, Plain, /-8,B B 9 B,B,B,B,B,B,B,B,B 8 0 9 7 Figure. Supercharger Housing -
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST SECTION VI (CONT.) - - IMPELLER ND SHFT SSEMBLY REF. NO. PRT NUMBER DESCRIPTION QTY. PER ENG. MODEL USGE 7 8 9 0 7 9080 70 77 779 779-779- 988 989 989 9897 7 79 70 0 98 IMPELLER ND SHFT SSEMBLY, Supercharger SPCER, Supercharger drive shaft gear SHFTGER, Supercharger drive WSHER, Supercharger drive shaft seal SPCER, Supercharger impeller SPCER, Supercharger impeller SPCER, Supercharger impeller (Note: Select one only) IMPELLER, Supercharger BUSHING, Supercharger impeller, front BUSHING, Supercharger impeller, rear RIVET, Supercharger impeller SPCER, Supercharger impeller nut LOCKWSHER, Supercharger impeller nut NUT, Lock, supercharger impeller PLUG, llen, /8-7 NPT WSHER, Supercharger thrust,b,b,b,b,b,b,b,b,b,b,b,b 0 Figure. Impeller and Shaft ssembly -
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST SECTION VI (CONT.) - - SUPERCHRGER SHFT BERING ND IR INLET DPTER REF. NO. PRT NUMBER DESCRIPTION QTY. PER ENG. MODEL USGE 7 8 9 0 7 8 9 0 9898 STD- 70 798 778 778 STD- 7 87 88 798 79 770 77-0 -0 - - - STD-8 STD- 0 STD-9 STD- 7 808 STD- 0 STD-9 N00 BERING, Supercharger shaft SCREW, Hex. hd., drilled #0- x / in. long SEL, Supercharger drive shaft GSKET, Supercharger oil seal retainer RETINER, Supercharger drive shaft oil seal SCREW, Fill. hd., drilled #0- x /8 in. long GSKET, Supercharger housing DPTER SSEMBLY, Supercharger air inlet DPTER SSEMBLY, Supercharger air inlet DPTER SSEMBLY, Supercharger air inlet DPTER SSEMBLY, Supercharger air inlet DPTER SSEMBLY, Supercharger air inlet STUD, /-0 x -/ in. long STUD, /-0 x -/ in. long STUD, /-0 x -/8 in. long STUD, /-0 x -/ in. long STUD, /-0 x -/8 in. long WSHER, Plain, / in. WSHER, Internal lock, / in. NUT, Plain, /-8 RING, Oil seal, / ID x / in. dia. WSHER,. -. 8 ID x / OD x / in. thick WSHER, Internal lock NUT, Plain, /-8 SEL, - 7/8 ID x -/8 OD x. -. in. section R 7, B, C, D, E, B, C, D, E, B, C, D, E, B, C, D, E, B, C, D, E, B, C, D, E, B, C, D, E B C D E, C, D B, B, C, D, E E E, B, C, D, E, B, C, D, E, B, C, D, E, B, C, D, E, B, C, D, E, B, C, D, E, B, C, D, E, B, C, D, E 7-0- - 0 Figure 7. Supercharger Shaft Bearing and ir Inlet dapter -
LYCOMING IRCRFT ENGINE GROUP SSEMBLY PRTS LIST SECTION VI (CONT.) - - SUPERCHRGER IR INLET HOUSING SSEMBLY REF. NO. PRT NUMBER DESCRIPTION QTY. PER ENG. MODEL USGE 78 78 B 70 C 797 D 707 78* D- - 70 STD- 89 STD- 7 MS77 8 790 9 7008 0 7009 78 N9-8L 70 STD- 8 708 STD-8 7 STD- 89 8 STD- 7 9 799 0 707 70 STD-8 STD- 0 STD-9 7 HOUSING SSEMBLY, Supercharger air inlet HOUSING SSEMBLY, Supercharger air inlet HOUSING ND VLVE SSEMBLY, Supercharger air inlet HOUSING SSEMBLY, Supercharger air inlet HOUSING ND VLVE SSEMBLY, Supercharger air inlet HOUSING SSEMBLY, Supercharger air inlet STUD, /-8 x -/ in. long, drilled STUD, /-8 x -/ in. long BUSHING, /8 in. ID x /8 in. OD x /8 in. long INSERT, Heli-coil, /- NF x / in. long INSERT, Heli-coil, #0- x /8 in. long INSERT, Heli-coil, /-8 x /8 in. long NOZZLE, Fuel injector, auto rich SHFT, Throttle valve VLVE, Throttle SCREW, Fill. hd., #8- x /8 in. long LOCKWSHER, #8 STOP, Throttle GROOVE PIN, / in. dia. x /8 in. long LEVER, Throttle SCREW, Fill. hd., drilled, #0- x / in. long SCREW, Fill. hd., drilled hd., #0- x 7/8 in. long WSHER, / ID x / OD x / in. thick PLTE, Throttle lever stop SPRING, Throttle stop adjusting SCREW, Throttle stop adjusting WSHER, Plain, / in. WSHER, Internal lock, / in. NUT, Plain, /-8 DPTER SSEMBLY, Fuel drain valve,-bb B C D E F, B, C, D, E, -BB F C,E C,E C,E F C,E C,E C,E C,E C,E C,E C,E C,E C, E C,E C,E C,E C,E C,E 7 ll Models 7 ll Models 7 ll Models C,D,E,-BB * - See figure, page -0 for 78 air inlet housing. Revised March 97 -