Aaron J. Cergol

Un-plugging a Pritchel hole

Recommended Posts

Guys i have saved alot of engines from the scrap with stuck cast iron pistons and all i have ever used was brake fluid that was a trick an old timer that worked for john deere taught me it will creep into places penetrating oil wont and its inexpensive

Share this post


Link to post
Share on other sites

If it's only rusted it place then I'd suggest using vinegar to break it free.

I had a cast iron clinker breaker with a steel screw firmly rusted in. After soaking it in vinegar for a couple of days, I was able to unscrew it with my fingers.

You may have to cork the underneath side of the prichell hole to keep the vinegar from leaking out.
and of course it seems like a good idea to try to drive it out from the bottom side.

Pros and cons:
Pros.. it worked for me.
it won't make it worse.

Cons .. Vinegar plus rust comes up with a hellac1ous stink.

Share this post


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.   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.