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426 rebuild question

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=182031
Printed Date: 07 Oct 2025 at 7:24pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com


Topic: 426 rebuild question
Posted By: Kevin210
Subject: 426 rebuild question
Date Posted: 25 Jul 2021 at 8:34pm
I'm rebuilding a MK II 3700 engine and wondering if you guys replace wrist pins bushings.



Replies:
Posted By: MACK
Date Posted: 25 Jul 2021 at 8:42pm
Only if they are worn.                  MACK


Posted By: Kevin210
Date Posted: 25 Jul 2021 at 8:57pm
Thanks Mack.Do you mic them or just go by how they feel with a new pin in them.


Posted By: MikeKroupa
Date Posted: 25 Jul 2021 at 9:15pm
I always replace  the wrist pin bushing if I'm doing a major overhaul.  Just my way of doing it . Good Luck, Mike 


Posted By: Kevin210
Date Posted: 30 Jul 2021 at 8:31pm
just an update..I didn't get much done today on the engine.
Got the oil pump and the pick up tube and discharge tube on.
Also got the sleeves in and they went rather easily but did have to tap
on them some.
Will get on it again tomorrow I think..
I would post pictures but I have no Idea how to do that..



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