Table of Contents 151 Engine Service and Repair Engine Service Course Menu ........................................................................................ 3 Section 1: & Repair Internal Combustion Section 1 Topics ................................................................................... 5 Primary Engine Components ................................................................ 7 Other Engine Systems ...................................................................... 7 Cylinder Head Components .................................................................. 8 Cylinder Block Components .................................................................
9 The 4-Stroke Cycle ............................................................................. 10 Engine Operation Intake Stroke ................................................................................... 11 Compression Stroke ........................................................................12 Displacement .............................................................................. 13 Compression Ratio ..................................................................... 14 Ignition Timing ............................................................................ 15 Combustion (Power) Stroke ............................................................
16 Exhaust Stroke ............................................................................... 17 Engine and Block Designs .................................................................. 18 Inline ............................................................................................... 18 V-type ............................................................................................. 18 Horizontally Opposed ..................................................................... 18 Engine Position ................................................................................... 19 Cylinder Identification .........................................................................
19 Engine Serial Number ......................................................................... 20 Engine Decoder .................................................................................. 21 Section 2: Basic Engine Section 2 Topics ................................................................................. 23 Main Components ............................................................................... 24 Components Short Block vs. Long Block ............................................................. 24 Cylinder Block Major Components .....................................................
25 Cylinder Block Designs ....................................................................... 26 Pistons and Connecting Rods ............................................................ 27 Piston Rings ........................................................................................ 28 High vs. Low Tension Rings ........................................................... 28 Piston Ring Grooves ....................................................................... 29 Piston Ring Function ....................................................................... 30 Crankshaft ...........................................................................................
31 Oil Passages ................................................................................... 31 Counterweights ............................................................................... 31 Flywheel .......................................................................................... 31 Crank Pin Position .......................................................................... 32 Crankshaft Main Bearings .............................................................. 33 Balance Shafts .................................................................................... 34 Balance Shaft Timing ......................................................................
35 Cylinder Head ..................................................................................... 36 Valve Train .......................................................................................... 37 Technical Training i