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Tippy Tippy is offline
Chain fence eating turbo
 
Join Date: Dec 2008
Location: Austin, TX
Posts: 8,748
Quote:
Originally Posted by bdonally View Post
What about the pattern leads you to that conclusion?
It is entirely possible - My first rebuild was to replace broken compression rings.
The breakage was attributed to a lean condition at middle engine speed that likely caused detonation, leading to the broken rings.
I didn't split the case at that time.

New bearings it is.
Question is whether the available Glyco are acceptable or to spend the serious money on the Porsche parts?
Because crank journals are near round as you can get, so a pattern showing in the bearing tells me it was being hammered by detonation.

I could be wrong, but that pattern is very suspect
Old 06-12-2018, 12:37 PM
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