Refinishing

NOTE: On 3.0L-(2V), journal radius is undercut and should be refinished. Do not grind more than 5 mm (0.20 inch) off 3.0L-(2V) journal or deep-fillet rolling, because strength increase will be compromised.

Dress minor imperfections such as scores, nicks or burrs with an oil stone. If the journals are severely marred or exceed the service limit, refinish them to size for the next undersize bearing.

If required, machine the journals to give the proper clearance with the next undersize bearing. If the journals will not clean up to maximum undersize bearing available, replace the crankshaft.

Always reproduce the same journal shoulder radius that existed originally. Too small of a radius will result in fatigue failure of the crankshaft. Too large of a radius will result in bearing failure due to radius ride of the bearing.

After refinishing the journals, chamfer the oil holes. Polish the journal with a No. 500 grit polishing cloth and engine oil (crocus cloth may also be used) to obtain a smooth finish. Remove all grinding dust from oil passages with compressed air.