Thread: Lean Cylinder?
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Old 10-01-2010, 01:20 PM   #11
Scooby Specialist
Member#: 130354
Join Date: Oct 2006
Location: KS
2011 535xi


Originally Posted by kellygnsd View Post
He's my neighbor and its possible he didn't post the failure here. You need to be very hot to melt a piston like that, way beyond normal combustion temps. About the only thing I can think of that would allow that would be an extremely lean condition. Those where his findings also.
I'm basically trying to work with the shop that did my build and tune as my car had 750 miles on it since rebuilding the bottom end. The more detail I can get, the better discussion I can have with them about covering my motor. So far as I can tell, I did not have any part failures that caused the lean condition.
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yaya20 is offline   Reply With Quote