Section 01 ENGINE MEASUREMENT
Subsection 01 (MEASUREMENT PROCEDURES)
Crankshaft Deflection
Crankshaft deflection is measured each end with
a dial indicator.
First, check deflection with crankshaft in
crankcase. If deflection exceeds the specified
tolerance, it can be either ball bearings wear, bent
or twisted crankshaft at connecting rod journal.
F01D1SA
1
1. Measuring PTO side deflection in crankcase
F01D1TA
1
1. Measuring MAG side deflection in crankcase
Remove crankshaft bearings and check deflection
again on V-shaped blocks as illustrated.
1
F01D97A
1. Measuring MAG side deflection on V-shaped blocks
F01D98A
1
1. Measuring PTO side deflection on V-shaped blocks
NOTE: Crankshaft deflection cannot be correctly
measured between centers of a lathe.
If the deflection exceeds the specified tolerance,
crankshaft should be repaired or replaced.
Connecting Rod Big End Axial Play
Using a feeler gauge, measure distance between
thrust washer and crankshaft counterweight.
smr2005-085 7
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