The New And Improved Unofficial R65 Forum V2

Technical Discussion => BMW Technical Q&A, Primarily R65 => Topic started by: slickster on July 20, 2012, 10:51:15 AM

Title: took off my head,had a broken piston ring
Post by: slickster on July 20, 2012, 10:51:15 AM

  I was doing the head removal for the valve seat job, on the 84 r65. I noticed my top ring on the piston was broken.  Should I just pop on a new one?

Title: Re: took off my head,had a broken piston ring
Post by: montmil on July 20, 2012, 01:52:27 PM

Probably have to buy the set. Your '84 has nikasil cylinders so there should not be an overbore question.  Check the cylinder bore for any ugly scratches and if it's looking OK, consider yourself golden.

Title: Re: took off my head,had a broken piston ring
Post by: nhmaf on July 20, 2012, 09:18:53 PM

+1 - hope that you don't have scratches in the bore from broken ring.   IF not, then put on a new set - I don't think they come separately either, and don't use a "used" one from another engine.

Title: Re: took off my head,had a broken piston ring
Post by: Barry on July 21, 2012, 03:52:53 PM

As far as I can see rings only come as a set although at one time they were available separately.


Just out of interest were there any running symptoms, low compression reading or increased oil consumption caused by the broken ring ?