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JCFarms 
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Location: Louisiana
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 Topic: 8010 PS Throttle problem
Posted: 20 Oct 2015 at 7:29am |
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My 8010 has started this surging of speed. It fires right up, I bring it to 1500 and it wants to run up to 2000 rpm. Then back to 1500. It'll stay there for awhile then back to 2000ish. Also while pulling up hill it doesn't keep speed, I have to throttle it up manually or it slows almost to a lugging stop.
I'm going to change the fuel filters, but they are new. Less than 20 hours and I drained the first filter, got very little water.
Any ideas?
Thanks in advance
Joe
PS after a while it will run fine at idle.
Edited by JCFarms - 20 Oct 2015 at 7:30am
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DrAllis
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Posted: 20 Oct 2015 at 8:04am |
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Sounds like possible sticky metering valve to me. How many hours??? more than 5,000??
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JCFarms
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Posted: 20 Oct 2015 at 8:13am |
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Little less than 3000 hrs. Says the meter.
Is that valve in the injection pump?
2685 hours.
Edited by JCFarms - 20 Oct 2015 at 8:28am
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DrAllis
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Posted: 20 Oct 2015 at 8:26am |
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Yes.
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JCFarms
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Posted: 20 Oct 2015 at 8:29am |
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You reckon it's water?
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DrAllis
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Posted: 20 Oct 2015 at 8:38am |
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I think you've had something other than clean diesel fuel go thru the injection pump, scratching the metering valve. That's what I think.
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injpumpEd
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Location: Walnut IL
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Posted: 20 Oct 2015 at 8:40am |
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This is an early tractor with the Stanadyne pump right? The problems you describe sound like AMBAC M100 problems.
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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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JCFarms
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Posted: 20 Oct 2015 at 8:58am |
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Thank You.
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JCFarms
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Posted: 20 Oct 2015 at 11:19am |
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Yes. 1983 stanadyne. Going to change filters if I find any at napa. I have a field of hay I have to get cut.
Edited by JCFarms - 20 Oct 2015 at 11:19am
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ChadB
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Posted: 20 Oct 2015 at 12:39pm |
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Mack my 8010 has the AMBAC M100 pump that does the same thing as the OP does. What are the problems with the AMBAC M100 pump.
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ChadB
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Posted: 20 Oct 2015 at 12:40pm |
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Sorry Mack, I ment Ed
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injpumpEd
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Posted: 20 Oct 2015 at 3:25pm |
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The Ambac has a slip clutch that will slip, and allow rpms to go above intended speed if load suddenly goes away, or you rapidly go wide open with light to no loads. The op having a Roosa DM likely has the metering valve sticking just like Dr said.
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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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JCFarms
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Posted: 20 Oct 2015 at 6:52pm |
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Fuel supply problem was the cause. Cutting hay as I type.
Edited by JCFarms - 21 Oct 2015 at 11:03am
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JCFarms
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Posted: 21 Oct 2015 at 7:54am |
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JCFarms
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Posted: 21 Oct 2015 at 7:56am |
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