Piston rings

[Dougie SwanParticipant @dougieswan43463]

hi

Im looking for some piston rings 1-3/16 dia

width around 1/16, can anyone help

Thanks

Dougie

[Andrew TinsleyParticipant @andrewtinsley63637]

They are not difficult to make, what little skill is needed comes in splitting them. I have a large number of US and UK made spark ignition engines which often need new rings.

Andrew.

[JasonBModerator @jasonb]

I also make them myself

If you have not made the cylinder yet then 30mm rings are readily available on the net and only 6thou smaller.

[ChrisLHParticipant @chrislh]

Prof Denis Chaddock wrote a very informative article on the subject of DIY piston rings many years ago. PM me if you would like a copy.

[duncan webster 1Participant @duncanwebster1]

Good article by TDWalshaw (Tubal Cain), again pm me for copy

[Dougie SwanParticipant @dougieswan43463]

Thanks for the replies, Jason came up with the best suggestion

30mm it is

Dougie

[JasonBModerator @jasonb]

At £2.80 a pair delivered, that is a lot less than the cost of a suitable piece of CI bar which means the “weed Whacker” ready made rings do have a lot going for them.

Though I tend to use Viton O rings in my IC engins these days.

[bernard towersParticipant @bernardtowers37738]

lots of articles available on ring making/tempering etc.. The american ic mags have some interesting info. `i break mine first and gap later after tempering. Try to get SG bar.

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