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Old 03-30-2012, 03:53 PM   #3
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Join Date: Jan 2010
Location: United States/Colorado
Posts: 322
My Ride: 2002 325xi (163k)
Ring ridge??


Was there a ring-ridge, which would be on the cylinder walls at the limit of travel of the top compression ring?

How does that part of the cylinder feel to your finger tip? How many miles on the engine?
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