SYM 11. CRANKCASE/CRANKSHAFT
11-5
CRANKSHAFT INSPECTION
Measure left and right clearance of connecting
rod big end.
Service limit: Replace when it is more
than 0.55 mm
Measure the radical clearance of the big
end at the vertical directions.
Service limit : 0.05 mm
Place the crankshaft onto a V-block and
measure run-out of the crankshaft with dial
gauge.
Service limit: Left side: 0.035mm
Right side: 0.030mm
Bearing Inspection
Rotate the bearing with fingers and make
sure the bearing can be rotated smoothly
and quietly.
Check if the inner ring is connected onto the
crankshaft tightly.
Replace crankshaft as a set when noise or
looseness is detected.
60 mm 90 mm
clearance
clearance
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