Air-Cooled Engine Technology

Air-Cooled Engine Technology

Air-Cooled Engine Technology Test #1 Review 80 Questions Covers Chapters 1, 2, 4, 5, 22 Careers & Professionalism Tools & Safety Engine Basic Theory &Operation 2 Stroke & 4 Stroke Cycle

Air-Cooled Engine Technology Test #1 Question Format True & False Matching of Definitions - Vocabulary Short Answer Measuring & Math Engine Parts Identification

Tools to Know & What Their Use Is Armature Air Gap Gauge Too Much Gap = No Spark Spark Tester Checks for 12, 000 Volts

Tools to Know & What Their Use Is Vibration Tachometer Cylinder Leakage Tester RPM & Blade Tip Speed Is Important for Operation Pinpoints Cylinder Leaks

Tools to Know & What Their Use Is Compression Testers Also Called Compression Gauges Measures Cylinder Cranking Pressure Compression Needed For Heat

Tools to Know & What Their Use Is Torque Wrenches Tiny Tach Proper Tightening of Fasteners Accurate RPM Readings

Tools to Know & What Their Use Is Telescoping Gauge Small Hole Gauge Digital Multimeter Inside Diameter Measurements V, O, A, Temp, RPM

Tools to Know & What Their Use Is Flat Feeler Gauges Clearance Measurements Thread Pitch Gauges ID Coarse or Fine Threads

Tools to Know & What Their Use Is Wire Feeler Gauges For Gapping Spark Plugs

Tools to Know & What Their Use Is Micrometer Extremely Accurate O.D. Dial Caliper Inside, Outside, Depth

From Chapter 1 Study Guide 2. No unnecessary risks 6. Never gas-up a hot or running engine! 11. Safety Glasses! 13. Carbon Monoxide Poisoning = Asphyxiation

From Chapter 2 Study Guide 16. Dial Calipers 19. Feeler Gauges 23. Dial Indicators

From Chapter 4 Study Guide 1. Energy Change from Chemical to Heat to Mechanical in an engine 2. Internal Combustion is burning inside

From Chapter 4 Study Guide 3. Carburetors & Injectors Atomize Fuel 4. Combustion Chamber is above the piston and under the cylinder head

From Chapter 4 Study Guide 18. Aluminum is a lightweight metal used to cast blocks and cylinder heads 22. Crankshaft-journals 26. Flywheel 27. Piston 28. Piston Rings

From Chapter 4 Study Guide 30. Wrist Pin vs. Crank Pin 31. Connecting Rod 32. Motions

From Chapter 4 Study Guide 32. Motions 33. Poppet Valves 36. Camshaft

From Chapter 4 Study Guide 37. Valve Tappets = Valve Lifters 38. Camshaft # of teeth vs. crankshaft 39. Camshaft speed relationship to crankshaft 40. Flywheels many jobs!!

From Chapter 4 Study Guide

From Chapter 5 Study Guide 1. Stroke is one piston movement 2. Stroke is a distance measurement Bore x Bore x Stroke x.785 = Displacement Displacement is Total Cylinder Volume

From Chapter 5 Study Guide 3. Name the 4 strokes of the 4 stroke cycle!! 6, 8, 9. Know the crankshaft & camshaft degrees of rotation during operation Camshaft ¼ Turn 90º Crankshaft ½ Turn 180º

From Chapter 5 Study Guide 7. Know the 4 stoke cycle inside & out!!

Air-Cooled Engine Technology Overhead Valve or I - Head Engine Shown

Air-Cooled Engine Technology L - Head or Side Valve Engine Shown

From Chapter 5 Study Guide 11. Reason for Compression 13. Compression Ratio

From Chapter 5 Study Guide 14. Scavenging 18. Valve Timing & Valve Overlap

From Chapter 5 Study Guide 25. Back Pressure from Sound Waves

From Chapter 5 Study Guide 26. Reed Valve vs. Piston Port valving 28 & 29. Two-cycle vs. Four-cycle

From Chapter 22 Study Guide 3. Manuals are hard copy or electronic 13. What is the EETC 14. Competent people doing Quality work

From Chapter 12 Study Guide 1. Why encourage Preventive Maintenance 16. Troubleshooting complaint, cause, correction

Air Be Able to Explain This Concept: Related to No-Start Related to Hard-Starting Related to Rough Running Fuel Fire Triangle Heat 1) Compression 2) Spark

Cylinder: Precisely Machined Hole for Piston Crankshaft: Main Shaft Changes Reciprocating Motion to Rotary Motion Piston: Slides Up & Down in the Cylinder

Camshaft: Operates the Poppet Valves Poppet Valves: Open & Close the Intake & Exhaust Ports Lifters or Tappets or Cam Followers: Between Valve Stems & Cam

Bore: Cylinder Diameter Stroke: Length of Piston Travel Distance from TDC to BDC One Piston Movement Up or Down Displacement: Total Cylinder Volume

TDC: Top Dead Center BDC: Bottom Dead Center Combustion Chamber: Space Where Fuel & Air Burns Located Above the Piston & Below the Cylinder Head

Atomization: Breaking Fuel into Small Particles & Mixing it with Air Vaporization: Fuel & Air in a Cloud Form Poppet Valve Parts

Engine Manufacturers (OEM s)

Implement & Power Equipment Manufacturers (OEM s)