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08-02-2013, 07:14 AM
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#1 |
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Gone Wild
Join Date: Feb 2012
Location: NW Pennsyvannia
Posts: 154
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Electric fuel pump
I just swapped to a predator 420cc clone engine. I drilled the valve cover and put a barb in it for the pulse line. I have great pulse through the new fitting but I am not getting much fuel. I can only run wide open for about 20 sec before i empty the fuel filter and have to let it idle to refill. I am thinking about replacing fuel pump with an electric on. The local advanced Auto has an inline electric pump that is 2 - 4 psi is this big enought or am I asking for other problems trying to swap this out. I am looking for advise pls
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08-02-2013, 09:17 AM
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#2 |
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Gone Wild
Join Date: Jun 2012
Location: Las Vegas, NV
Posts: 961
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Re: Electric fuel pump
I just had the same EXACT issue on a customers cart that we built with a stock 440. I tried everything, replaced the engine, replaced the carb, replaced the fuel pump, changed the hoses, etc. It ended up being a bad valve cover!
Boy was I pissed at myself. |
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08-02-2013, 10:09 AM
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#3 |
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Gone Wild
Join Date: Jun 2011
Location: Bowling Green, VA
Posts: 157
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Re: Electric fuel pump
just make sure you wire it so that it turns off when you don't have the engine running or it'll puke fuel everywhere.
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08-02-2013, 10:13 AM
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#4 |
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Happy Carting
 Join Date: Dec 2007
Location: Southern California
Posts: 73,408
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Re: Electric fuel pump
I used a fuel pump on a clone once and had to reulate the pressure down to .5 - 1 pound before it would stop overwhelming the float and flooding. Seems these floats are set up for gravity feed pressure.
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08-02-2013, 11:15 AM
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#5 |
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Gone Wild
Join Date: Feb 2012
Location: NW Pennsyvannia
Posts: 154
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Re: Electric fuel pump
ok after pulling everything apart i have great fuel flow idling but full throttle no fuel on two diff fuel pumps. how did u find out it was valve cover? also what about t on elect pump to return excess fuel back to tank
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08-02-2013, 11:37 AM
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#6 |
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Gone Wild
Join Date: Jun 2012
Location: Las Vegas, NV
Posts: 961
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Re: Electric fuel pump
The valve cover has a pcv in it, when it fails, it will bleed off all the vacuum at anything over idle.
They are chinese so they all will break eventually..good thing they are cheap! |
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08-02-2013, 12:42 PM
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#7 |
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Gone Wild
Join Date: Feb 2012
Location: NW Pennsyvannia
Posts: 154
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Re: Electric fuel pump
geoffw is the valve cover you sell on your website what i need or is the hardware not included considered the pcv valve? If so i'll just order it from you if thats what you think my problem might be. Thanks for all your help guys
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08-02-2013, 12:45 PM
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#8 |
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Gone Wild
Join Date: Jun 2012
Location: Las Vegas, NV
Posts: 961
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Re: Electric fuel pump
Yes, thats the one...its worth a try! I cant guarantee thats the issue but it fixed my gremlin.
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08-02-2013, 12:51 PM
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#9 |
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Gone Wild
Join Date: Feb 2012
Location: NW Pennsyvannia
Posts: 154
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Re: Electric fuel pump
i know its no guarantee but you know a heck of a lot more about them than I do. So its worth a shot thank you so much for you knowledge and site sponsorship.
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08-02-2013, 12:59 PM
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#10 |
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Gone Wild
Join Date: Feb 2012
Location: NW Pennsyvannia
Posts: 154
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Re: Electric fuel pump
geoffw whats up with the shipping on your website it says 36 s/h for a 4 dollar valve cover
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