TM 10-3930-641-34-1
CRANKSHAFT MAIN BEARINGS INSPECTION (CONT)
(Sheet 2 of 2)
LOCATION/ITEM
ACTION
REMARKS
Crankshaft main bearings
a. Check for score marks, metal flaking,
imbedded metal particles, grooves or deep
scratches.
b. Inspect back of bearing halves for bright
moving in caps or cylinder block.
c.
Replace bearings that are excessively
worn. If one or more bearing halves require
replacement, all bearing halves must be
replaced.
End
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