Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here


Compressor Disassembly help

Compressor Disassembly help

Compressor Disassembly help

I have several hundred compressors with top ends requiring new seals. The problem is: the cup seal is held in place with a compression/interference ring.

I cannot remove this ring with a 3 jaw puller, as there is nothing to grab onto. I've tried heating the ring with propane, but to no avail.

Short of trying to melt the ring in a bucket of acid, and grinding the feet down to knife edges on the 3 jaw puller, I'm at a loss for how to remove the ring in order to replace the worn cup seal...

My goal is to get these things refurbished and back into operation, so minimizing damage to the aluminum piston head is required. (could also use advice on how to press a new ring into place once properly disassembled)

(Edit: the worn cup seal in the photo has been cut away to show the part)

I have attached photos.

Please help!


RE: Compressor Disassembly help

don't those rings have slits from which you can pry them out?

RE: Compressor Disassembly help

What part in this picture are you trying to remove? A drawing would be much more useful to me than a picture.

Johnny Pellin

RE: Compressor Disassembly help

What does the manufacturer advise???? Is there nothing in the operation / maintenance manuals??

RE: Compressor Disassembly help

I'm leaning to using a lathe to remove the ring. The replacement can go on with an arbor press and a little anti-galling material.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close