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Home > Help Needed / General Tech Chat > compression ring thickness

minimole23

4309 Posts
Member #: 1321
Post Whore

Wiltshire

2nd Jan, 2008 at 08:40:40am

what should the thickness of the compression ring for 20831 pistons be. I have measured mine to be 1.59mm or about 0.61 - 0.62 in imperial.

Does this sound alright or what should they measure? I'm currently questioning the accuracy of my micrometer.

Thanks

On 7th Oct, 2010 5haneJ said:
yeah I gave it all a good prodding

Vegard

User Avatar

7765 Posts
Member #: 74
I pick holes in everything..

Chief ancient post excavator

Norway

2nd Jan, 2008 at 09:34:09am

What matters is the gap between the ring and the slot in the piston. Measure this. Brand new rings may still be unuseable if the piston is worn.

On 13th Jul, 2012 Ben H said:
Mine gets in the way a bit, but only when it is up. If it is down it does not cause a problem.
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