Jump to content

421 Cub Compression Low On One Side


doug

Recommended Posts

Howdy -

 

<sigh> I've gt low compression on one side of a 421 cub. (150PSI on the left, 105PSI on the right)</sigh>

 

I'm going to take it apart, but was wondering if it is possible that it could be rings? (kinda hoping here...)

 

If rings aren't likely responsible for about a 50psi drop, what are my options? Replate? Purchase new jugs and a top-end? Estimated costs and recommended place to buy would be appreciated.

 

Thanks!

Link to comment
Share on other sites

Depending on what caused it to happen, i.e. what you were doing when it happened it is probably rings. Nikasil is hard as can be, it'd take alot to score it.

 

If it does need re-plated I've heard anywhere from 150-200 per hole for that, but not sure if that's accurate.

Link to comment
Share on other sites

If its just got a lotta rides on it it may just be rings. As far as if you need pistons or rings, Andy at M&M atv is a site sponsor and has em. Replating is a few hundred and Millennium Technologies is who I've had do mine. Andy may be able to hook you up and the replating.

Link to comment
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.   Paste as plain text instead

  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...