M2 Exhaust Manifold
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=23410
Printed Date: 22 Feb 2025 at 3:04am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: M2 Exhaust Manifold
Posted By: Amos
Subject: M2 Exhaust Manifold
Date Posted: 04 Jan 2011 at 11:48am
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I was combining corn last night and when I went to start the combine this morning found the exhaust manifold cracked on the port closest to the flywheel end of the engine. Is this common? What should I look for that may have caused this, is there a clamp or support that could be broke or missing? Where would I find a used manifold?
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Replies:
Posted By: Steve M C/IL
Date Posted: 04 Jan 2011 at 1:49pm
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Well,I was bush hoggin with my uncle's 7020 (same manifold) and stopped for supper.Hadn't been working it hard at all (pasture) so I just throttled it down for a bit then shut if off and started walking accross the way to the house.I got about 30ft away an BANG!!! WTF!! Went back for a look and the manifold was broke btween the back and middle ports. Probably what happened to yours in some fashion. Heat/cool,odd shapes....stress point waiting to happen.
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Posted By: Russ-neia
Date Posted: 04 Jan 2011 at 2:41pm
Nothing unusual. Just heating/cooling for too many years. Not too expensive from AGCO dealer or aftermarket. I wouldn't fool with trying to take a used one off and then put it back on and hoping it doesn't already have a small crack. Your labor will cost more than just using a new one to begin with.
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Posted By: Amos
Date Posted: 04 Jan 2011 at 6:26pm
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Thanks. I have found a new one for what I was hoping I could find a good used one for. They even have one in stock (that about told me it was a fairly common problem).
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