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Overhauling the crankshaft
The journals for main bearings and crank pin should not be scored or grooved.
The threads, keyways, and slots must be in good condition.
Check for fretting or burrs in the fillet between journal and shoulder.
Fillet radius: 1.5 mm.
Use a micrometer to measure oval and taper value of the crank pin. Measure oval and taper in several
different directions.
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