Quote:
Originally Posted by Helmsman
Quote:
Originally Posted by pbonsalb
I think VAC sells lead based clevite bearings as well. Not sure of the ACL material but it might be lead based also since it’s aftermarket. It may be that the only aluminum based bearing is the bmw one.
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Yes, believe ACL has a lead-tin overlay. OEM 702/703 are the only I've seen that has a alu aloy on top. On the other hand, from what we've seen on the board oil test seems far from a secure way to identify the shell shape? |
It's an indication of something when you start seeing copper. Oil analysis would have saved me an S54 if it was in my mailbox the Thu before a track weekend vs the Mon after.