Check the needle bearing.
The rollers in a needle bearing normally wear very little,
and wear is difficult to measure. Instead of measuring,
inspect the bearing for abrasion, color change, or other
If there is any doubt as to the condition of a needle bear-
ing, replace it.
Oil Seal Inspection
Inspect the oil seal.
Replace the oil seal if the lips are deformed, discolored
(indicating that the rubber has deteriorated), hardened or