7000 throttle slow to respond
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=139223
Printed Date: 01 Apr 2026 at 11:08pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: 7000 throttle slow to respond
Posted By: ACFarmer86
Subject: 7000 throttle slow to respond
Date Posted: 08 Jun 2017 at 9:21pm
So I just purchased a 7000 and in driving it home I noticed that when you throw up the engine revs up slower than I feel it should. It's not "snappy" like my 190 and 185. And when you pull down fast it kills engine just like fuel shut off. Was told the fuel filter was just changed before I picked it up. Could it be pump, I'm just not sure  ------------- Grandpa's 1953 WD, D17 series I, 190 XT III |
Replies:
Posted By: Joe(TX)
Date Posted: 08 Jun 2017 at 9:32pm
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check the turbocharger. Otherwise it may be the injection pump. ------------- 1970 190XT, 1973 200, 1962 D-19 Diesel, 1979 7010, 1957 WD45, 1950 WD, 1961 D17, Speed Patrol, D14, All crop 66 big bin, 180 diesel, 1970 170 diesel, FP80 forklift. Gleaner A |
Posted By: Hurst
Date Posted: 08 Jun 2017 at 9:36pm
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Sounds like the governor in the pump is sticking? Was the tractor airing a long time before you got it? Might be worth bleeding the system again to make sure, and fuel filters aren't too expensive if you want to try that before a pump rebuild. Ed on here will probably chime in, and I'd just do what he says. Hasn't let me down yet! Hurst ------------- 1979 Allis Chalmers 7000 5800 Hours |
Posted By: 210Postin
Date Posted: 08 Jun 2017 at 9:58pm
| sounds like the pump is gummed up you can try some additives or pull pump and have gone threw |
Posted By: ACFarmer86
Date Posted: 08 Jun 2017 at 10:55pm
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Should have mentioned that it has only been run a few times a year the last three or four years since the gentleman I bought it from retired ------------- Grandpa's 1953 WD, D17 series I, 190 XT III |
Posted By: injpumpEd
Date Posted: 09 Jun 2017 at 7:42am
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metering valve in the pump is sticking if not billowing black smoke when throttled up. If it is billowing black smoke, but lazy to respond, then look at the turbo as stated above. ------------- 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! |
Posted By: ACFarmer86
Date Posted: 09 Jun 2017 at 10:20am
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It smokes black and gets up to rpm just slowly ------------- Grandpa's 1953 WD, D17 series I, 190 XT III |
Posted By: DrAllis
Date Posted: 09 Jun 2017 at 10:21am
| Anything under about 17 to 1800 RPM you are going to have that....sounds pretty normal. |
Posted By: injpumpEd
Date Posted: 09 Jun 2017 at 11:01am
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check around intake manifold, looking for missing plug, or blown gasket. Have seen this more than once. Also could be an exhaust leak before the turbo if the manifold is cracked, blown gasket, or rotted out turbine housing. ------------- 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! |
Posted By: MACK
Date Posted: 09 Jun 2017 at 2:24pm
| A 7000 for some reason is worse about gumming up metering valve and pin that governor spring sets on than any of the 7000 series. MACK |
Posted By: ACFarmer86
Date Posted: 09 Jun 2017 at 3:21pm
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Thanks guys I will look in to it tonight after work ------------- Grandpa's 1953 WD, D17 series I, 190 XT III |
Posted By: 45 turboa-
Date Posted: 09 Jun 2017 at 4:56pm
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I would ck the air cleaner too. Pull the hose off the turbo and see how it acts then. ------------- turbocharged |
Posted By: SteveM C/IL
Date Posted: 10 Jun 2017 at 12:18am
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45 turboa- wrote:Posted By: ACFarmer86
Date Posted: 10 Jun 2017 at 8:54am
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I had a few mins last night to monkey with it. It has ok response in the upper end of Rpms. The hand throttle needs to be half way up before it comes of idle, and the foot is better but still takes quite a bit before it starts to react. Could cable be bad or that far out of adjustment? And if I rev it up and take my foot off the throttle it will die. According to the previous owner it always kinda been like this..... ------------- Grandpa's 1953 WD, D17 series I, 190 XT III |