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Surging fuel pump


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#1 polarisdiesel OFFLINE  

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Posted June 22, 2016 - 06:23 PM

Hello I have a ranger diesel with the fuel pump turned up, cut delivery valves, turbo and a Cummings lift pump. I recently noticed when I Rev on the throttle or when I'm accelerating under a load my throttle will start surging and the pedal gets real stiff. Kinda like the pump is building pressure to make it want to return to idle. The surging feel comes from my throttle cable bracket bouncing "in a sense" from the tension coming and going as the engine is loaded down. Does anyone else have this problem ? Or have any suggestions on how to fix it.
Thanks

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#2 polarisdiesel OFFLINE  

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Posted June 22, 2016 - 09:13 PM

I've been looking and i think it might be the govenor inside the pump. Is there a way to delete that ? What would be the result ?

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#3 WNYTractorTinkerer OFFLINE  

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Posted June 22, 2016 - 09:16 PM

I've been looking and i think it might be the govenor inside the pump. Is there a way to delete that ? What would be the result ?

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It's there for a reason..  Adjust it per the specs and don't eliminate or disable it unless you want to replace a blown engine..



#4 polarisdiesel OFFLINE  

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Posted June 22, 2016 - 09:20 PM

At this point it's hard to drive because of it. The rpms fluctuate while I'm trying to slightly accelerate.

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#5 Chris11 OFFLINE  

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Posted June 26, 2016 - 06:56 AM

Is this a tractor or a 4 wheeler?



#6 polarisdiesel OFFLINE  

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Posted June 26, 2016 - 10:51 AM

It's a side by side but it runs the same 3 cylinder Yanmar that some of yall do

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#7 Billy M OFFLINE  

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Posted June 28, 2016 - 03:43 PM

I would be reluctant to remove the governor.  You could over-rev really quick running a turbo.  I actually had the rev-limiter lowered via the tune on my GM Ecotec that I added a turbo on, for safety's sake.



#8 polarisdiesel OFFLINE  

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Posted June 28, 2016 - 03:48 PM

I already have the high speed limiter removed on the outside of the pump. I'm talking about the internal one inside the pump. But after reading about how they work I think think it's just as simple as removing it

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