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12-03-2006, 02:05 AM
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#1 |
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Registered User
Join Date: Dec 2005
Location: Bogalusa Louisiana
Posts: 146
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fuel problem
Hello i installed a fuel cell and had to install a electronic fuel pump so i wanted to test the pump to see if it worked i hooked it straight to the positve on the battery to test it i never cranked the truck and oh did the pump work a buddy had came over and i forgot about the pump running for about 5 minutes and gas was going every were from the carb i assume i guess it was over flowing i guess the question is when i hook it to the ignition it should be ok? what if i turn the key on and not crank it will it over flow? any help on this would be great as i am not no mechanic buy far but i can beat and bang with a hammer and weld does that count for anything
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12-03-2006, 02:17 AM
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#2 |
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Registered User
Join Date: Apr 2006
Location: oklahoma
Posts: 10,670
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Re: fuel problem
Are you running a return line? If you use an electric pump you have to have a return line. Also is the pump self regualted or does it need an external regulator? That is important also. Hope this helps.
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12-03-2006, 02:57 AM
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#3 |
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Registered User
Join Date: Dec 2005
Location: Bogalusa Louisiana
Posts: 146
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Re: fuel problem
i dont know if it's self regulated the said at autozone this is all i needed if i do run a return line were do i hook it as far as on the carb the fuel cel
 l said only use the return for fuel injected im lost this fuel cell as been a pain in the a$$ if it is self regulated do i need a return?
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12-03-2006, 03:33 AM
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#4 |
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Registered User
Join Date: Apr 2006
Location: MinneSNOWta
Posts: 1,381
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Re: fuel problem
Get a regulator (adjustable would be my reccomendation), it will provide you with a return, you will just have to run another line from the regulator back to the fuel cell, that way any fuel not needed by the carb will recirclulate back to the cell.
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2003 GMC Sierra 1500 WT 1995 Nissan Hardbody 2016 Hyundai Veloster Turbo DC2 (SW/AW) Clyde W. Harvey USN "Socialism is a philosophy of failure, the creed of ignorance, and the gospel of envy, its inherent virtue is the equal sharing of misery" Winston Churchill |
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12-03-2006, 12:29 PM
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#5 |
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Registered User
Join Date: Dec 2005
Location: Bogalusa Louisiana
Posts: 146
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Re: fuel problem
Ok i guess illhave to get a fuel regulator also i noticed now sense i installed the fuel pump the carb is leaking around the seal any sugestions now?
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12-03-2006, 01:20 PM
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#6 |
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Senior Member
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
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Re: fuel problem
why did you HAVE to run an electric fuel pump??i can think of many thousands of cars i've seen that had fuel cells and the good old reliable mechanical fuel pumps--- ever watched any nascar races 100% run fuel cells and mechanical pumps on thier 800hp engines// IMO running an electric pump is just looking to get youself a problem
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71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY |
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12-03-2006, 01:29 PM
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#7 | |
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sufficiently talented fool
 
Join Date: Jun 2006
Location: Forest Hill, MD
Posts: 2,231
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Re: fuel problem
Quote:
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12-03-2006, 01:33 PM
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#8 |
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Registered User
Join Date: Jun 2002
Location: Knoxville Tenn.
Posts: 3,058
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Re: fuel problem
I got a electric pump on my truck with no return line . You don't need one unless it is a fuel injection with high pressure. You may need a pressure regulator if your carb needle cannot handle the pressure the pump puts out. Most electric pumps for stock fuel systems do not need regulators. What kind of pump do you have?
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56 Chevy Bel-Air 2dr. HT (purchased new) 71 Chevy Cheyenne SWB PU (502HO) 65 GMC short bed step--work in progress and my gofer |
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12-03-2006, 01:54 PM
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#9 |
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Registered User
Join Date: Jun 2002
Location: Knoxville Tenn.
Posts: 3,058
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Re: fuel problem
Here is how you should run your pump hookup to keep pump from running if engine quits: (holley part # 12-810 )
http://www.holley.com/data/Products/...l/199R9680.pdf
__________________
56 Chevy Bel-Air 2dr. HT (purchased new) 71 Chevy Cheyenne SWB PU (502HO) 65 GMC short bed step--work in progress and my gofer |
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12-03-2006, 02:46 PM
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#10 |
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Registered User
Join Date: Dec 2005
Location: Bogalusa Louisiana
Posts: 146
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Re: fuel problem
i purchased a universal fuel pump from autozone i installed the fuel cell in the back under frame i hooked evrything up and the mechanical pump would not pull the gas so i installed a electric fuel pump and now nothing but problems now for some reason gas is leaking from the gasket under the carb the electric fuel pump onlypumps 5.5 to 9 psi do i need to replace the gasket under the carb now
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12-03-2006, 09:59 PM
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#11 |
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Registered User
Join Date: Jun 2002
Location: Knoxville Tenn.
Posts: 3,058
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Re: fuel problem
What kind of carb? 9 psi is to much for street carbs. No need to replace gasket as that is not your problem. Your problem is that your carb is flooding over because the float needles are not closing from too much pressure or debris under needle. Do you have a fuel filter?
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56 Chevy Bel-Air 2dr. HT (purchased new) 71 Chevy Cheyenne SWB PU (502HO) 65 GMC short bed step--work in progress and my gofer |
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12-03-2006, 10:14 PM
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#12 |
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Registered User
Join Date: Dec 2005
Location: Bogalusa Louisiana
Posts: 146
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Re: fuel problem
yes i have a fuel filter i unhooked the electric fuel pump and the manual pump works fine now but it is still leaking underneath the carb how can i fix this i appreciate all your help so far
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12-03-2006, 11:23 PM
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#13 |
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Registered User
Join Date: Jun 2002
Location: Knoxville Tenn.
Posts: 3,058
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Re: fuel problem
Need to know what kind of carb.
__________________
56 Chevy Bel-Air 2dr. HT (purchased new) 71 Chevy Cheyenne SWB PU (502HO) 65 GMC short bed step--work in progress and my gofer |
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12-03-2006, 11:30 PM
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#14 |
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Senior Member
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
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Re: fuel problem
if it's leaking between the carb and the manifold,did you try to gently tighten the carb mounting bolts?
__________________
71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY |
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12-04-2006, 12:41 AM
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#15 |
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Registered User
Join Date: Dec 2005
Location: Bogalusa Louisiana
Posts: 146
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Re: fuel problem
carter carb and yes i tried to gently tighten the bolts no luck the gasket doesnt look worn
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12-04-2006, 12:46 AM
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#16 |
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Registered User
Join Date: Jun 2002
Location: Knoxville Tenn.
Posts: 3,058
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Re: fuel problem
You have something under the float needles not letting them shut off the fuel flow. Will the engine run?
__________________
56 Chevy Bel-Air 2dr. HT (purchased new) 71 Chevy Cheyenne SWB PU (502HO) 65 GMC short bed step--work in progress and my gofer |
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12-04-2006, 01:19 AM
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#17 |
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Registered User
Join Date: Dec 2005
Location: Bogalusa Louisiana
Posts: 146
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Re: fuel problem
yes it will run it's issing but running this electrical pump has drove me
Last edited by chevythunder33; 12-04-2006 at 01:20 AM. |
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12-04-2006, 01:24 PM
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#18 |
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Registered User
Join Date: Jun 2002
Location: Knoxville Tenn.
Posts: 3,058
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Re: fuel problem
You need to let someone that can work on carbs to have a look at it. You have a flooding problem.
__________________
56 Chevy Bel-Air 2dr. HT (purchased new) 71 Chevy Cheyenne SWB PU (502HO) 65 GMC short bed step--work in progress and my gofer |
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