CA Starting Problem
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=143316
Printed Date: 11 May 2025 at 10:39pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: CA Starting Problem
Posted By: CA Ron
Subject: CA Starting Problem
Date Posted: 10 Oct 2017 at 8:45pm
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I have CA Allis with a 149 cu. in. motor that came out of a combine. Same as D14 or D-15. The only way it will start is to pull the throttle all the way down past idle and then it will fire. Once it starts it runs great. I've been fighting this starting problem for a while. The carb is a Marvel-Schebler TSX-670 which I've soaked in carb cleaner for a day then put a rebuilt kit in it. No luck. Then I thought I might have a magneto problem as it had somewhat of a weak spark. Installed a rebuilt mag, plugs, new wires with no luck. Did a compression check and all cylinders were at 140 pounds. Now I'm back thinking something has to be wrong with that carb. I check the carb adjustments and noticed that if I screw the idle adjustment all the way in the tractor idles rough but does not shut off. Any ideas on what's going on with this tractor. Thanks, Ron
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Replies:
Posted By: Gary Burnett
Date Posted: 10 Oct 2017 at 9:25pm
Sounds like the choke might not be working.What combine did the motor come out of?
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Posted By: CA Ron
Date Posted: 10 Oct 2017 at 9:34pm
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Not sure. Bought a model C tractor at an auction with this motor in it. The story at the auction was the motor came out of a combine as I could tell it was a 149 cu. in. I just wanted the motor out of the C to put in my CA. The choke works fine. I'm going to take the carb a part again as there has to be something inside there fighting me.
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Posted By: pinball
Date Posted: 10 Oct 2017 at 10:14pm
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I am sort of confused. From what your saying your tractor starts fine but you throttle linkage goes below the first rung. Adjust it and I think you would have a great starting tractor. Anyone that owns a tractor and can put there throttle ling all the way down and a tractor would start and run approx. 600 rpm would be very happy. Unless I'm missing something it sounds like you did a very good job rebuilding your carb. just my 3 cents worth.
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Posted By: CA Ron
Date Posted: 10 Oct 2017 at 10:24pm
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The tractor runs fine. It just won't start unless I pull the throttle down to idle as far as it goes.
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Posted By: Ted J
Date Posted: 11 Oct 2017 at 6:40am
When you pull it down PAST the lowest peg, get it started, then what do you do?
I assume that you are putting it back up into one of the notches? Is it idling then in the lowest notch? If so, then you need to adjust the rod that goes through the lever.
If the above is true, then it is getting too much gas with the throttle handle moved forward. As stated, you need to adjust the throttle rod.
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"Allis-Express"
19?? WC / 1941 C / 1952 CA / 1956 WD45 / 1957 WD45 / 1958 D-17
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