Service Manual

CAMSHAFT/CRANKSHAFT 7-19
Crankshaft, Connecting Rod
•
Measure the crankpin width [A] with a dial caliper.
If the crankpin width is more than the service limit, replace
the crankshaft with a new one.
Crankpin Width
Service Limit: 44.7 mm (1.76 in.)
Connecting Rod Big End Bearing/Crankpin Wear
•
Apply a light film of engine oil on the threads of the cap
bolts.
•
Install the cap bolts and tighten the bolts to the speci-
fied torque (see Piston Installation in the Engine Top End
chapter).
•
Measure the inside diameter [A] of big end at several
points with a telescoping gauge or inside micrometer.
If the inside diameter is more than the service limit, re-
place the connecting rod with a new one.
Connecting Rod Big End Inside Diameter
Service Limit: 40.04 mm (1.58 in.)
•
Measure the crankpin outside diameter [A].
○
Use a micrometer to measure several points around the
crankpin circumference.
If the crankpin diameter is less than the service limit, re-
place the crankshaft with a new one.
Crankpin Outside Diameter
Service Limit: 39.94 mm (1.57 in.)
Crankshaft Runout
•
Measure the crankshaft runout.
○
Set the crankshaft in a flywheel alignment jig [A] or on V
blocks gauge.
○
Set a dial gauge [B] against both bearing journals.
○
Turn the crankshaft slowly to measure the runout. The dif-
ference between the highest and lowest dial gauge read-
ings (TIR) is the amount of runout.
If the measurement exceeds the service limit, replace the
crankshaft with a new one.
Crankshaft Runout
Service Limit: TIR 0.05 mm (0.002 in.)