Not for
Reproduction
FLYWHEEL, CRANKSHAFT AND CAMSHAFT
Cleaning
1.
Thoroughly clean parts in a non-volatile cleaning
solution or solvent. Follow up with a thorough wash in
hot soapy water.
2.
Blow dry with low pressure compressed air.
Inspection
Flywheel
1.
See Figure 68. Inspect flywheel magnet (A) for cracks,
chips, or other damage. Check magnet for looseness.
2.
If engine is equipped with electric start, check flywheel
ring gear for worn, cracked, chipped, or missing teeth.
3.
Inspect flywheel key (B) for partial or complete shearing.
Replace key if any damage is found.
4.
Inspect flywheel keyway (C) for damage or distortion.
5.
Inspect flywheel taper for scoring, scratches, cracks,
or burrs. Remove any slight burrs with a fine-tooth file.
6.
Inspect flywheel fan (D) for bent, cracked, chipped, or
broken fins.
68
Crankshaft
1.
See Figure 69. Carefully remove crankshaft end play
shims (A), if present. Count shims as they are removed
to be sure of installing the correct number when the
engine is assembled. Inspect shims for tears, holes, or
other damage. Replace shims as necessary.
2.
Inspect keyway (B) for damage or distortion.
3.
Check camshaft gear (C) and governor gear (D) for
worn, cracked, chipped, or missing teeth.
4.
Inspect crankshaft for straightness. DO NOT attempt
to straighten bent crankshafts.
5.
Inspect crankshaft taper for burrs, rust or other damage.
Remove any slight burrs with a fine-tooth file.
6.
Inspect crankshaft PTO bearing journal (E), crankpin
journal (F), and MAG bearing journal (G) for scoring.
7.
Using an outside micrometer, measure the crankpin
journal diameter. Replace the crankshaft if
measurement is at the reject size shown below.
Crankpin Journal Diameter
Reject Size
Models
1.179 in (29.95 mm) or less
130G00, 131G00, 13R200
1.178 in (29.93 mm) or less
13U100, 13U200
8.
Measure the MAG bearing and PTO bearing journal
diameters. Replace the crankshaft if either
measurement is 0.982 inches (24.95 mm) or less.
69
58
6
Summary of Contents for 130G00
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