Be Certain to Read the Summary. ATASA 5 th Study Guide Chapter 10 Pages Engine Cleaning, Removal & Disassembly. 27 Points

Size: px

Start display at page:

Download "Be Certain to Read the Summary. ATASA 5 th Study Guide Chapter 10 Pages Engine Cleaning, Removal & Disassembly. 27 Points"

Aileen Miller
5 years ago
Views:

1 Study Guide Chapter 10 Pages Points Be Certain to Read the Summary

2 Is there a career for me that melds 2 or more of my favorite clusters?

3 1. Major engine repair or overhaul will require from the vehicle, while some relatively major engine repairs on the upper end can be made with the engine still in the vehicle. Removal Replacement Rehearsal

compartment with degreaser solution that emulsifies

4 2. No matter what the engine point will be, a first step preceding engine removal is cleaning the engine compartment with degreaser solution that emulsifies into a hot soapy solution with hot water. Entry Exit Lift

7 3. Protecting yourself with gloves and the vehicle with covers and disposable floor mats will result in more successful major engine work. Seat Roof Fender

9 4. Proceed by removing the, making electrical & fuel system, dealing with accessories like PS & AC, draining the engine, and disconnecting the exhaust system. Hood, Disconnects, Coolant

10 5. Drive line components like FWD shafts and RWD transmissions will have to be dealt with. Half Quarter Full

11 6. The torque converter must remain with the as the engine is removed. Depending on arrangement, transmission can stay in the car, be removed before engine, or be removed with engine. Engine Transmission Clutch

12 7. If bolting a to an engine, threads must go into the block a minimum of 1 ½ times their O.D. Sling Bling Chain

13 Engine Support Fixture

16 8. Once removed from the vehicle, the engine should be mounted on a as soon as possible. Stand Floor Bench

18 9. To assist with failure, cylinder heads as well as all wear mated parts should be marked, labeled & kept organized. Diagnosing Predicting Guessing

19 10. When loosening valve train components, valves may bend on engines that slam the valves into the pistons if they are out of time. That is not an issue with freewheeling engines. Interference Interruption Interrogative

22 11. Cylinder head bolts should be loosened or turns working from the of the head toward the center to prevent distortion. (Keep the head gaskets to compare with the new ones.) 1 or 2 3 or 4 5 or 6 Center Ends Middle

23 If either the camshaft or the lifters are damaged or worn, both should be Replaced since they are wear mated.

24 Removal of camshaft bearing caps on OHC engines must be done in steps sequentially to prevent distortion and breakage of the camshaft itself or the cam tower assembly.

25 A valve spring compressor is needed to remove the keepers from the valves. Keep all valve train parts in order for inspection and possible reuse. They too are wear mated.

26 Valve stems with peened or mushroomed tips must often be filed to get them out of the guide.

28 Valves that cannot be refaced without leaving 1/32 minimum margin must be replaced.

29 Timing components like sprockets, chains, belts & tensioners should be replaced during overhaul. They are often available as a service kit.

30 A ring ridge reamer is used to remove the cylinder ring ridge before pistons can be removed.

31 Use a center punch or number stamps to identify every connecting rod & cap and every main bearing cap before removal. Stamp them on the external flat surfaces.

32 Rod bolts should be covered with protectors to prevent crankshaft rod journal damage during removal.

35 Mark the flywheel/flex plate to maintain balance during reassembly.

36 It is wise to plastigage bearings at disassembly to determine wear, as well as during reassembly to determine new bearing clearance.

37 Remove all core plugs (freeze plugs) & oil gallery plugs prior to block cleaning.

38 For decisions on machining & parts ordering, measurements must be taken.

39 12. Cleaning methods depend upon the component to be cleaned and the of which it is made. Incorrect cleaning methods or agents could be more harmful than no cleaning at all! Year Material Country

40 13. Contaminants fall into 4 categories: 1) soils, 2) soils like petroleum by products combustion byproducts, & coatings, 3) rust, & 4) mineral deposits/scale. Water Soluble, Organic Soils

41 14. The 3 basic processes for cleaning automotive parts are: 1) cleaning, 2), and 3) cleaning. Chemical, Thermal, Abrasive

42 15. Parts washers, soak tanks, and hot spray tanks are examples of cleaning. Chemical Thermal Abrasive

43 16. cleaning ovens operate between F to oxidize greases & oils into ash. Chemical Thermal Abrasive

44 17. Shot, tumbling, vibratory cleaning, and scraping with power tools are examples of the abrasive cleaning processes. Note: Shot Peening is different than Shot Blasting Blasting

45 18. Once parts are thoroughly cleaned, crack and repair can be done. Before repairing damaged engine parts, it is advisable to determine the cause of the fatigue & failure. Detection or Inspection

46 19. Common methods of crack detection are: 1) checks on a cylinder block or head, 2) (MPI) done to cast iron parts, also known as magnafluxing, and 3) penetrant, that can be done on iron as well as aluminum. Pressure Magnetic Particle Inspection Dye

52 Magnaflux method is applied for crack detection during crankshaft testing. The crank is previously soaked with a liquid which is sensitive to magnetism and ultraviolet light. The grinding process starts after each part has been measured very meticulously.

Advanced Auto Tech. ASE A 1 Test Preparation Engine Upper End Theory & Service

Advanced Auto Tech. ASE A 1 Test Preparation Engine Upper End Theory & Service Advanced Auto Tech ASE A 1 Test Preparation Engine Upper End Theory & Service Torque to yield bolts stretch to their yield point when tightened and should not be reused. True or False The sealing lip &