Author Topic: piston rings  (Read 1789 times)

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126dave

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piston rings
« on: April 25, 2007, 09:54:09 AM »
hi all,what is the recommended end gap on 650 fsm 126 piston rings?....and,if your running any sort of tuning up grade(engine running hotter maybe) should the gap be increased slightly?????

answers on the back of a fiver to the usual address  :lol:


and,does anyone have a new standerd set of bigend shells lying around??? (will replace on my next gerstl order)
28-34c and cold beers in the fridge

ChrisRLewis

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piston rings
« Reply #1 on: April 25, 2007, 07:03:15 PM »
Dave

The information in my manual is probably the same as yours
Piston Ring Gap in Bore
First: 0.25-0.40 mm
Second/Third 0.20-0.35 mm
position the ring gaps at 120 degrees to each other.

I don't think that there would be a difference for a tuned up motor?

Chris Lewis

126dave

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piston rings
« Reply #2 on: April 25, 2007, 07:13:02 PM »
thanks chris,i dont think any diff either,it was just a thought......... :cool:
28-34c and cold beers in the fridge