Measure Crankshaft Runout; Measure Crankshaft Main Bearing/Journal Wear - E-Z-GO Engine Shop Rebuild Manual

ENGINE MEASUREMENTS
E.
Measure the crankpin outside diameter [A].
F. Use a micrometer to measure several points around
the crankpin circumference.
G. If the crankpin diameter is less than the service limit,
replace the crankshaft with a new one.
Crankpin Outside Diameter
Standard: 42.963 ~ 42.976 mm (1.6915 ~ 1.6920 in.)
Service Limit: 42.95 mm (1.691 in.)

Measure Crankshaft Runout

A. Measure the crankshaft runout.
B.
Set the crankshaft in a flywheel alignment jig [A] or on
V blocks gauge.
C. Set a dial gauge [B] against both bearing journals.
D. Turn the crankshaft slowly to measure the runout.
The difference between the highest and lowest dial
gauge readings (TIR) is the amount of runout.
E. If the measurement exceeds the service limit, replace
the crankshaft.
Crankshaft Runout
Standard: TIR 0.02 mm (0.0008 in.) or less
Service Limit: TIR 0.05 mm (0.002 in.)
Page C-16
Measure Crankshaft Main Bearing/Journal
Wear
A.
B. If the journal has worn enough to exceed the service
Crankcase Side Crankshaft Main Journal Diameter
Standard: 34.955 ~ 34.980 mm (1.3762 ~ 1.3772 in.)
Service Limit: 34.93 mm (1.375 in.)
C.
D. If the bearing has worn enough to exceed the service
Crankshaft Main Bearing Inside Diameter (Crankcase
Side)
Standard: 35.002 ~ 35.015 mm (1.3780 ~ 1.3785 in.)
Service Limit: 35.05 mm (1.380 in.)
Kawasaki Engine Shop Rebuild Manual
Measure the diameter [A] of the crankshaft main jour-
nal.
limit, replace the crankshaft with a new one.
Measure the inside diameter [A] of the crankshaft
main bearing (crankcase side).
limit, replace the crankcase with a new one.