Connecting Rod Big End Side Clearance; Crankshaft Runout; Crankshaft Main Bearing/Journal Wear - Segway SNARLER ATV 2021 Series Service Manual

B B
A A
B B
CRANKSHAFT / TRANSMISSION CRANKSHAFT / TRANSMISSION
Crankshaft
CAUTION CAUTION
The Crankshaft and Connecting Rod are Assembled at
the factory , so the Crankshaft must be replaced as a set.

Connecting Rod Big End Side Clearance

Connecting Rod Big End Side Clearance
◆ Measure the side clearance of the connecting rod
big end.
◆ Insert a thickness gauge【B】between the big end
and either crank determine clearance.
Connecting Rod Big End Side Clearance
Standard: 0.13 ~ 0.48 mm
Service Limit: 0.7 mm
If the clearance exceeds the service limit, replace the
Crankshaft.

Crankshaft Runout

Crankshaft Runout
◆ Measure the crankshaft runout.
If the measurement exceeds the service limit, replace the
Crankshaft.
Standard: TIR 0.04 mm (0.0016 in.) or less
Service Limit: TIR 0.10 mm (0.0039 in.)

Crankshaft Main Bearing/Journal Wear

Crankshaft Main Bearing/Journal Wear
◆ Measure the diameter【A】of the crankshaft main
journal.
Crankshaft Main Journal Diameter
Standard: 40.995 ~ 41.005 mm
A A
Service Limit: 40.97 mm
If any journal has worn past the service limit, replace the
crankshaft with a new one.
◆ Measure the main bearing bore diameter【B】in the
crankcase halves.
Crankcase Main Bearing Bore Diameter
Standard: 41.040 ~ 41.050 mm
B B
Service Limit: 41.08 mm
If there is any signs of seizure, damage, or excessive
wear, replace the crankcase halves as a set.
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