fuel pump problem September 03, 2018 07:28AM
p-pump fuel pump rpm goes up by itself. still can shut down the engine when pull the shut off. any ideas?

thanks for the help
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Re: fuel pump problem September 03, 2018 08:13AM
Has this always acted this way?? Did u buy chance turn the fuel up and then it started doing this?? If you turn the fuel screw in too far it will want to "run away" but u can still shut it off.
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Re: fuel pump problem September 03, 2018 09:39AM
didn't touch anything, runs good idle then I try to push the throttle and it goes up by itself
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Re: fuel pump problem September 03, 2018 11:14AM
Is this a new pump? Or have you been running it awhile? It's possible you have something hanging the control rack up. How much fuel pressure are you running? Too much fuel pressure creates too much side load on the plungers causing them to hang up thus possibly causing your issue because the governor isnt strong enuf to keep the rpms where they should be.
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Re: fuel pump problem September 03, 2018 01:33PM
Who made the pump ?
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Re: fuel pump problem September 03, 2018 11:42PM
cds did the pump and It just came back from the shop, did six hooks since. Last pull I did the bolt that holds the gear of the pump broke
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Re: fuel pump problem September 04, 2018 10:10AM
Did you buy it brand new and when did you get it? Definitely sounds like a barrel or plunger is sticking
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Re: fuel pump problem September 04, 2018 12:25AM
Better get a 3 way dump valve.
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