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Old 01-13-2019, 11:07 PM   #8
Join Date: Dec 2014
Location: Nevada
Posts: 79
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Default Re: Rear Main Bearing Oil Behavior

I just had a rear bearing cap fail. Upon taking it apart it had a shortened drain tub. Most of the thrust was gone on the rear and about 20% of the bearing surface. Crankcase back-
pressure could come in to the question, also 8% mile and a half grade on every trip to town. Is going down hill worse than going up, is the oil in valve chamber to low to feed the rear tube to bearing? I put it back together with a stock drain tube, 3/8 in.
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