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-   -   ring end gap (http://www.peachparts.com/shopforum/showthread.php?t=376638)

ac130 03-26-2016 01:29 PM
ring end gap
 
Any body out have the specs for the ring end gap for a 91 560 m117 engine? and has anyone ever sleeved those blocks? thanks
in advance.

oldiesel 03-26-2016 02:27 PM
Rule of thumb is .004in per inch of bore. Worked fine for many engines over the years.Maybe some one will come up with the MB spec if not and i was doing the job i would use that. Don

ac130 03-26-2016 07:19 PM
ring end gap
 
Thanks Don,
That's what I was afraid of. .014in seems a little tight, but I can see that as the low end and .018in being the limit. with the gap presently at 0.053in in the worst cylinder at the top, I believe my engine maybe toast.
Allen

Frank Reiner 03-26-2016 07:28 PM
Quote:
Originally Posted by ac130 (Post 3584301)
Thanks Don,
That's what I was afraid of. .014in seems a little tight, but I can see that as the low end and .018in being the limit. with the gap presently at 0.053in in the worst cylinder at the top, I believe my engine may be toast.
Allen
Are the pistons out? If so, irrespective of ring wear, and the attendant increase in gap, bore diameter is decisive.

oldiesel 03-27-2016 08:03 PM
Are you checking with a new ring or a worn one,that can make a considerable difference!
Don


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