xix
C H A P T E R 1 7
Cylinder, Crankshaft,
and Piston Service . . . . . . . . 325
Cylinder Reconditioning . . . . . . . . . . 325
Cylinder Inspection . . . . . . . . . . . . . . . . . . . . .325
Cylinder Measurement . . . . . . . . . . . . . . . . . .326
Reboring the Cylinder . . . . . . . . . . . . . . . . . . .327
Honing the Cylinder . . . . . . . . . . . . . . . . . . . .328
Crankshaft and
Main Bearing Service . . . . . . . . . . . . . 329
Inspecting the Crankshaft . . . . . . . . . . . . . . . .330
Inspecting the Main Bearings . . . . . . . . . . . . .331
Piston Assembly Service . . . . . . . . . . 332
Checking Piston Clearance . . . . . . . . . . . . . . .333
Ring Side Clearance . . . . . . . . . . . . . . . . . . . . .334
Removing Piston Pins . . . . . . . . . . . . . . . . . . .334
Measuring Piston Pins and Bosses. . . . . . . . .335
Inspecting Connecting Rods . . . . . . . . . . . . . .335
C H A P T E R 1 8
Camshaft and
Valve Train Service . . . . . . . . 339
Introduction. . . . . . . . . . . . . . . . . . . . . 339
Camshaft Service . . . . . . . . . . . . . . . . 339
Valve Service. . . . . . . . . . . . . . . . . . . . 341
Inspecting Valves and Seats . . . . . . . . . . . . . .341
Inspecting Valve Springs . . . . . . . . . . . . . . . . .341
Valve Guides . . . . . . . . . . . . . . . . . . . . . . . . . . .341
Refacing Valves . . . . . . . . . . . . . . . . . . . . . . . . .344
Valve Lifter Service. . . . . . . . . . . . . . . . . . . . . .345
Valve Seat Service . . . . . . . . . . . . . . . . . . . . . . .345
Lapping Valves . . . . . . . . . . . . . . . . . . . . . . . . .350
Adjusting Valve Lifter-to-Stem Clearance. . .352
Servicing Overhead Valves,
Seats, and Guides . . . . . . . . . . . . . . . . . . . .353
C H A P T E R 1 9
Engine Reassembly
and Break-In . . . . . . . . . . . . . 355
Introduction. . . . . . . . . . . . . . . . . . . . . 355
Reinstalling Internal
Engine Components. . . . . . . . . . . . . . 355
Installing Valves (L-Head Engine) . . . . . . . . .356
Installing the Crankshaft,
Camshaft, and Governor Gear . . . . . . . . .356
Installing the Piston and Rod Assembly . . . .357
Installing Overhead Valves . . . . . . . . . . . . . . .362
Installing the Cylinder Head. . . . . . . . . . . . . .363
Installing the Crankcase
Breather and Valve Cover . . . . . . . . . . . . .364
Adjusting Crankshaft Endplay
and Installing the Crankcase Cover . . . . .365
Reinstalling External
Engine Components. . . . . . . . . . . . . . 365
Engine Break-In. . . . . . . . . . . . . . . . . . 366
S E C T I O N 5
Applications
C H A P T E R 2 0
Lawn and
Brush Equipment . . . . . . . . . 371
Working Safely . . . . . . . . . . . . . . . . . . 371
Lawn Mowers. . . . . . . . . . . . . . . . . . . . 373
Rotary and Reel Mowers . . . . . . . . . . . . . . . . .373
Push-Type and Self-Propelled Mowers. . . . .373
Optional Features . . . . . . . . . . . . . . . . . . . . . . .374
Engine Starting . . . . . . . . . . . . . . . . . . . . . . . . .375
Minor Checks . . . . . . . . . . . . . . . . . . . . . . . . . .378
General Maintenance . . . . . . . . . . . . . . . . . . . .378
Chain Saws . . . . . . . . . . . . . . . . . . . . . 380
Chain Saw Designs. . . . . . . . . . . . . . . . . . . . . .380
Safety Features . . . . . . . . . . . . . . . . . . . . . . . . .380
Rules for Safe Operation . . . . . . . . . . . . . . . . .382
Chain Saw Maintenance . . . . . . . . . . . . . . . . .383
String Trimmers and Brushcutters . . . 386
Design Features. . . . . . . . . . . . . . . . . . . . . . . . .386
Operator Safety . . . . . . . . . . . . . . . . . . . . . . . . .388
Starting and Safe Operation . . . . . . . . . . . . . .389
String Trimmer and
Brushcutter Maintenance . . . . . . . . . . . . . .391
Edger/Trimmers. . . . . . . . . . . . . . . . . . 394
Edger/Trimmer Features. . . . . . . . . . . . . . . . .395
Safety Features and Adjustments. . . . . . . . . .395
Copyright Goodheart-Willcox Co., Inc.
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