Farm Equipment - 1974 200

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1974 200

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=8840
Printed Date: 19 Jan 2025 at 4:03pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: 1974 200

Posted By: ChadB
Subject: 1974 200
Date Posted: 02 Mar 2010 at 6:37am

I have a 74 200. I've had it several years and every sense I have owned it it has a pretty severe lope at idle. Once the rpm reaches 1200 to 1500 the lope goes away, and also it will not lope if it under load (ie pulling equipment), Also it is very noticeable in road gear at low rpm < 1500 rpm. Could this be a problem with the injector pump or the injectors themselves. I have been told that this is common with the Allis tractor.

Replies:

Posted By: AMB(wcIL)
Date Posted: 02 Mar 2010 at 7:32am

Sounds like the governor ring in the injection pump to me. Not to bad of a job to get rebuild. Andy

Posted By: AaronH
Date Posted: 02 Mar 2010 at 8:24am

My 75 model 200 will lope a bit just after a cold start but as soon as it warms up it goes away. I kinda like the sound!!

Posted By: ChadB
Date Posted: 02 Mar 2010 at 8:59am

Mine also does it worse when cold, and then as it warms lessons the lope to some degree. I just tell people I have an oversize cam in it.

Posted By: injpumpEd
Date Posted: 02 Mar 2010 at 10:21am

speed up the idle.

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210 "too hot to farm" puller, part of the "insane pumpkin posse". Owner of Guenther Heritage Diesel, specializing in fuel injection systems on heritage era tractors. stock rebuilds to all out pullers!