Section 04 ENGINE (2-STROKE)
Subsection 05 (BOTTOM END)
F01D1QA
1
2
1. Ruler must be aligned with edge of connecting rod here
2. Align ruler here
Crankshaft Deflection
All Models
MEASUREMENT MAG SIDE PTO SIDE
Crankshaft
deflection (max.)
0.050 mm
(.002 in)
0.030 mm
(.001 in)
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 defl
ection 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
142 smr2004-Complete Line Up