Jump to content

Piston ring re-size or is it a no no


Recommended Posts

Hello chaps im just rebuilding my 1949 roadster 2000 engine i have a set of nos 85mm pistons and liners but im short of 2 compression rings,so my question is can 86mm rings be trimmed to fit or will the whole shape be compromised even though its only a 1mm difference,i can get some tractor ones but not sure of quality. Any thoughts please. Martin

Link to post
Share on other sites

Years ago when tractor 85mm piston/liners were all that was available quite a few TR`s were run on them so I would have thought they would be OK, I wouldnt go down the 86 and shrink route!

Stuart.

Link to post
Share on other sites

No,

 

Trimming the 86mm rings won't give them the correct radial loading imposed by their size and curvature, as Stuart says I'd go for the tractor 85mm rings as the best compromise.

 

Mick Richards

Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
×
×
  • Create New...

Important Information

Please familiarise yourself with our Terms and Conditions. By using this site, you agree to the following: Terms of Use.