Please help
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=25825
Printed Date: 25 Feb 2025 at 12:32pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: Please help
Posted By: robleighc
Subject: Please help
Date Posted: 16 Feb 2011 at 7:32am
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We have an Alice Chamber Tractor that has gone nuts AGAIN. it acts like it is running out of fuel. My husband takes the return line off of the injector pump that goes to the fuel tank. After he puts air pressure in the check value the tractor will run again for a minute or two. Please let me know if you have any ideas what we can do to fix or make it run.
Thanks in Advance. Scott and Robin
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Replies:
Posted By: BobHnwO
Date Posted: 16 Feb 2011 at 7:39am
Check for clogged screen in sediment bulb,if it has one.
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Why do today what you can put off til tomorrow.
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Posted By: HagerAC
Date Posted: 16 Feb 2011 at 9:06am
Sounds like a case of the flex ring in the pump is deteriorating and plugging the return fitting with the glass ball in it. An injection pump rebuild is in the near future if this is the case. I had this happen on my 180 diesel tractor, and I now have sent the pump off to have it rebuilt.
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30+ A-Cs ranging from a 1928 20-35, to a 1984 8070FWA, Gleaner R52
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Posted By: Steve M C/IL
Date Posted: 16 Feb 2011 at 9:21am
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Ive heard that you can loosen the screws on the timing window to let fuel leak out relieving pressure in pump.If that makes it keep running,you definately have a governor ring going to pieces and time for rebuild.
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Posted By: robleighc
Date Posted: 16 Feb 2011 at 9:36am
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How much is it going to cost you to have this rebuilt?
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Posted By: Orange Blood
Date Posted: 16 Feb 2011 at 9:40am
It depends on the pump, the tractor model, and the rebuilder. Here is an example, we just rebuilt the pump on our D21, it had a couple of worn parts, so price is s little higher, but it ran over $700.00 Not cheap to rebuild a pump.
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Still in use:
HD7 WC C CA WD 2-WD45 WD45LP WD45D D14 3-D17 D17LP 2-D19D D19LP 190XTD 190XTLP 720 D21 220 7020 7030 7040 7045 3-7060
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Posted By: Tim-tn
Date Posted: 16 Feb 2011 at 9:49am
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If it runs after you blow air back thru the check valve the governor ring is going bad, for a temporary fix you can remove the return fitting from the top of the pump and break out the glass bead and remove the spring behind it. That should let it run , not the proper fix but will get you by awhile.
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Posted By: Gerald J.
Date Posted: 16 Feb 2011 at 9:54am
But when the governor ring is all gone so is governor control and the engine may overspeed, and in that process make throw a rod or two through the side of the block. That tends to be terminal.
Gerald J.
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Posted By: sandylakeimplement
Date Posted: 16 Feb 2011 at 12:05pm
I agree with the prognosis of a contaminated check valve. The governor band deteriorates over time & comes apart in tiny rubber pieces which lodge in the check valve spring. When housing pressure builds to match the transfer pump pressure (8 or 10 psi) no fuel moves. The guys are right about a temporary fix but if the source is not fixed the pins of the 2 piee governor hub will hammer in their slots & metal will start to come off. AVERAGE repair in our shop runs about $525 and covers all the expected wear items but unexpected items (such as a cam ring or governor assembly) can raise that amount substantially. You can likely find a local shop to do this or you could send it to us. Bill
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Sandy Lake Implement
Sandy Lake, PA
724-376-2489
www.sandylakeimp.com
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