8010 Surging
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=30565
Printed Date: 06 Mar 2025 at 10:32am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: 8010 Surging
Posted By: ChadB
Subject: 8010 Surging
Date Posted: 11 May 2011 at 6:28am
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I have a 85 8010 that has a problem of RPM surging when doing field work. I have keep adjusting the throttle to maintain the correct ground speed. I looked at the service manuel for troubleshooting options. According to the manuel it should have the Roorsa-Master pump but it appears to be a Bosch pump. Also this tractor does not have the lift pump as the manuel says it should. Did any of the 8010's have the Bosch injection pump, or has somebody in the past altered it? I have only owned this tractor for a couple of years and don't have any history with it.
Thanks
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Replies:
Posted By: Daehler
Date Posted: 11 May 2011 at 7:57am
Dont know if I'll be correct on this, but was told by mechanic that when a tractor starts surging its time to get the pump rebuilt.
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8070FWA,7080 BlackBelly, 7045,2 200s,D19,D17,G, WD,45,UC,7 AC mowers and lots more!
"IT TAKES 3 JD's TO OUT DO AN ALLIS, 2 TO MATCH IT IN THE FIELD AND 1 FOR PARTS!"
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Posted By: StewartMD
Date Posted: 11 May 2011 at 8:38am
I'm not sure of what the correct pump was. Ours had been replaced by the previous owner and I can't think of the name off the top of my head. We had problems with ours, RPMs would increase after about 30 minutes of running in the field. Someone on the site recommended having the pump rebuilt and it fixed all of our problems. We also did the injectors at the same time.
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8030, 8010, 220, 185, 160, D-17, WD, Unstyled WC, CA, G, 20-35, Gleaner E
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Posted By: Russ-neia
Date Posted: 11 May 2011 at 9:36am
There was a serial number break on the 8010's. Later ones had the Bosh pump. My serial 2228 still has the Roosa.
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The innovators offer what others will imitate.
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Posted By: injpumpEd
Date Posted: 11 May 2011 at 12:12pm
American Bosch model 100's used on Allis-Chalmers did have some governor sensitivity issues. If it is starting to act up and progressively get worse, then pump needs gone through and set to latest specs. good luck, Ed.
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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!
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