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Old 02-15-2019, 08:00 PM   #45
BMWM.D.

 
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Drives: ZL1/335i
Join Date: Apr 2014
Location: Santa Barbara
Posts: 870
Quote:
Originally Posted by Can'tHave2MuchHP View Post
Did you check for a scored or damaged crank? I've seen it several times with amateur installs that wreck the front of the crank and it never seals right.
Could be, but I still wonder why the original seal failed. After all, they did an upper pulley, not a lower.

Most shops remove the blower to do an upper, so maybe something got screwed up there. It sure sounds like the crankcase is getting pressurized somehow.
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