Farm Equipment - 8550 engine

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8550 engine

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=206775
Printed Date: 19 May 2025 at 6:37am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: 8550 engine

Posted By: TrentH
Subject: 8550 engine
Date Posted: 18 May 2025 at 7:34pm

We have a 8550 that the rear turbo started smoking and will not clear out even when it’s at operating temp and has what we think is a miss on one of the rear cylinders. Is it worth fixing the Allis engine or repower with a Cummins.

Replies:

Posted By: DrAllis
Date Posted: 18 May 2025 at 8:04pm

If it was as simple as changing out one injector, why wouldn't you fix it ?? Looks like some good diagnosis is needed.

Posted By: TrentH
Date Posted: 18 May 2025 at 8:15pm

Haven’t dug to deep into it yet. It looked like more of blue smoke, like oil. I was thinking it was probably rings. Was going to check for bubbles in the antifreeze and make sure it wasn’t that to.