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Farmall & IHC Tractors Discussion Forum
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IH 574 Diesel

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TDK

08-25-2004 10:58:48




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Tractor idles rough, bump throttle up just a little and it's OK. Any ideas of what to check? Thanks.




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JB

08-25-2004 19:47:28




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 Re: IH 574 Diesel in reply to TDK, 08-25-2004 10:58:48  
Hi, check the adjustment on the Stop/Run lever.
All the way to the top is in the Run position and the lever on the side of the injection pump should be fully forward against the adjustment screw. Half way between Stop and Run is the cold start position and behaves like a choke on a gas engine.
Does it run good under heavy load ?

The fuel tanks on these tractor like to collect dirt in the bottom and then restrict fuel flow to the injector pump.

Usually sympton is dying down under load and rough idle. ie RPM jumping up and down.

Good luck
JB

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captaink

08-25-2004 11:14:42




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 Re: IH 574 Diesel in reply to TDK, 08-25-2004 10:58:48  
Did you just buy the tractor? If not have you done anything to it lately?

If you just bought it, check the timing and mark where it currently is for a reference. Try retarding it just a bit and see if that helps. If it makes it worse or has no change, try advancing it. If again no change or makes it worse, set it back the way it was.

It could be injectors or even the pump causing this. Could be some other things, but I’d try these first and see if it helps.

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