Farm Equipment - IB PTO leak

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IB PTO leak

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=207231
Printed Date: 25 Jun 2025 at 11:39pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: IB PTO leak

Posted By: Freewheeling
Subject: IB PTO leak
Date Posted: 24 Jun 2025 at 10:05pm

I have a oil leak from the PTO that appeared to be from the bottm retainer bolt hole. I discovered that the idiot previous owner used 3 different length bolts and two of them were worn 1/4" + below the head including the bottom one. The two retainer holes the crap bolts were in (top & bottom) were out of round and the faces were ground down. The mating housing hole for the bottm bolt was sloppy when threaded. Of course there are high spots by the retainer bolt holes.

There were 5 shims between the retainer and the housing and a gasket between the shims and housing but none between the retainer and the shims.

The shaft has some small dings and scratches that I [polished out. The seal looks OK but is some off-brand so I'll repkace it.

Does anyone have a nice retainer (part # 207617)?

Should there be a gasket between the retainer and the shims? My book doesn't show one.

What's the process for the shims?

It appars that National 50135 seal would be correct. Yes?

Thanks.

Replies:

Posted By: PaulB
Date Posted: 25 Jun 2025 at 6:01pm

I believe that I have a NOS part that you need. However 207617 is not a correct part number for anything related to an IB. Could you post a picture of the part you are wanting?

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If it was fun to pull in LOW gear, I could have a John Deere.
Real pullers don't have speed limits.
If you can't make it GO... make it SHINY

Posted By: Freewheeling
Date Posted: 25 Jun 2025 at 7:17pm

I have a hard time using this site. I uploaded the photo but I couldn't shrink iot to fit the page. ????

Posted By: steve(ill)
Date Posted: 25 Jun 2025 at 7:42pm

your photos need to be a bout 800 x 600 pixels.. Most cameras are 5000 x 4000 or so... It is BEST to shrink the photo on computer in PAINT and THEN UPLOAD... if your using a phone, ... email to yourself, then RESIZE the photo prior to download..

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Like them all, but love the "B"s.

Posted By: steve(ill)
Date Posted: 25 Jun 2025 at 8:28pm

drawing of PTO unit..........

https://www.allischalmers.com/forum/unable-to-post_topic207229.html" rel="nofollow - https://www.allischalmers.com/forum/unable-to-post_topic207229.html

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Like them all, but love the "B"s.