Oil Clearance Between Crankpin And Crankpin Bearing - Kubota KX080-3 Workshop Manual

WSM KX080-3 Service

Oil Clearance between Crankpin and Crankpin Bearing

1. Clean the crankpin and crankpin bearing.
2. Put a strip of plastigage on the center of the crankpin.
3. Install the connecting rod cap and tighten the connecting rod
screws to the specified torque, and remove the cap again.
4. Measure the amount of the flattening with the scale, and get the
oil clearance.
5. If the oil clearance exceeds the allowable limit, replace the
crankpin bearing.
6. If the same size bearing is useless because of the crankpin
wear, replace it with an undersize one referring to the table and
figure.
• NOTE
• Never insert the plastigage into the crankpin oil hole.
• Be sure not to move the crankshaft while the connecting
rod screws are tightened.
Crankpin O.D. Factory spec.
Factory spec.
Oil clearance between
crankpin and crankpin
bearing
Allowable limit
III-S-159
Engine
52.977 to 52.990 mm
2.0857 to 2.0862 in.
0.018 to 0.051 mm
0.0007 to 0.0020 in.
0.20 mm
0.0079 in.
W1067389