Farm Equipment - 8550 starter

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8550 starter

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=170727
Printed Date: 05 Jun 2025 at 4:53am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: 8550 starter

Posted By: Dale
Subject: 8550 starter
Date Posted: 01 May 2020 at 3:40pm

Does anyone know the trick to get the back bolt tightened in on an 8550 starter.

Starter needed a new solenoid which was the easy part. By the way, we found the back bolt out of the hole just wedged between the block and the starter when we removed the starter to get it tested.

Able to get an OEM solenoid for it but no way can we get the back bolt of the starter tightened in. You can only get at it with an extension that reaches to the front of the starter but then the angle of approach is all wrong. Please tell me the Allis engineers didn't design it so you have to remove the oil cooler housing to get at the back bolt.

Sure hope someone can shed some positive light on this.

Replies:

Posted By: Amos
Date Posted: 01 May 2020 at 6:35pm

Dale, shallow socket...and a swivel if I remember correctly. But I am pretty sure i did one without the swivel...some starter housings are slightly different from others I have noticed on that engine.

Still have your 305?

Posted By: Dale
Date Posted: 01 May 2020 at 9:16pm

Thanks for the info.

We've tried the shallow socket as well as a 5/8" snap-on swivel. Just can't seem to get it. the angle of attack with the long extension is a bit off.

Yes, still have the 305. Trying to keep hrs off it so we use the 8550 for our grain buggy. Have bought a Steiger PTA325 out of Saskatchewan for our tillage tractor.

Posted By: bigal121892
Date Posted: 02 May 2020 at 6:52am

How do you like the automatic in the Steiger?

Posted By: rw
Date Posted: 02 May 2020 at 7:14am

I have replaced a lot of Delco starters on truck engines and I suppose this is the the same since you say 5/8 12 point socket.

I use a 12 point 1/2 inch impact socket and the shortest 1/2 inch drive wobble extension, (an inch or so long) and a medium length 1/2 inch drive wobble extension to reach past the starter case then a long handled 1/2 inch drive flex head ratchet.

Posted By: Amos
Date Posted: 02 May 2020 at 9:17pm

A lot of them seem to have lost the twelve point bolt over the years sure is nice when they have it still.