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03-03-2010, 08:19 PM
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#1 |
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Broken Down
Join Date: Dec 2006
Location: Choctaw, Oklahoma
Posts: 1,267
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1982 Fuel Pump.
I got a 1982 Chevy K10 4x4 dual fuel tanks that originally came with a 305. PO installed a 454 There are two fuel lines going to the fuel pump. Do each of these lines go to a different fuel tank or is one a supply and one a return??
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kenm78 1982 Chevy 4X4 Project truck  “It’s better to keep your mouth shut and let people wonder about your ignorance, than open your mouth and reveal all doubt” |
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03-03-2010, 10:59 PM
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#2 |
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Registered User
Join Date: Feb 2010
Location: Waukesha, WI
Posts: 162
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Re: 1982 Fuel Pump.
One should be the "in" or supply from the tanks and the other will be the "out" or supply to the carb.
Last edited by Slofarmtruck; 03-03-2010 at 10:59 PM. |
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03-03-2010, 11:43 PM
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#3 |
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Registered User
Join Date: Oct 2006
Location: iowa
Posts: 722
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Re: 1982 Fuel Pump.
the threaded one goes to the carb. the larger of the 2 unthreaded one is the supply line from the tank(s) and the smaller one is a fuel return line.
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"Horsepower is how fast you hit the wall, torque is how far you carry the wall with you." '84 chevy half ton short box 2wd, 67,000 actual miles  '03 chevy 1500 HD crew cab 4x4 standard box, 6.0L 
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03-04-2010, 12:16 AM
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#4 |
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Registered User
 
Join Date: Mar 2010
Location: Castro Valley, Ca
Posts: 12
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Re: 1982 Fuel Pump.
lurch115 is right. If you chase the lines back to the fuel selector valve you'll see that each tank has a supply and return line to and from it.
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Kwlskid  1972 GMC stepside C1500 1982 GMC fleetside C2500 
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03-04-2010, 07:06 AM
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#5 | |
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Broken Down
Join Date: Dec 2006
Location: Choctaw, Oklahoma
Posts: 1,267
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Re: 1982 Fuel Pump.
Quote:
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kenm78 1982 Chevy 4X4 Project truck “It’s better to keep your mouth shut and let people wonder about your ignorance, than open your mouth and reveal all doubt” |
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03-04-2010, 12:47 AM
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#6 |
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Registered User
Join Date: Feb 2010
Location: Waukesha, WI
Posts: 162
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Re: 1982 Fuel Pump.
Thanks for the correction. Its been a while since I've looked at a stock setup!
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03-04-2010, 11:48 AM
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#7 |
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Parts and more parts
Join Date: Nov 2003
Location: Lebo, Kansas (middle of nowhere
Posts: 6,821
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Re: 1982 Fuel Pump.
IF you hook up the return line to a stock pump OR use a different lower plate for an aftermarket pump to get the opening for the return fitting. This little line will help on any fuel vaporization problems. I had a problem when I went to a different fuel pump and the reconnection of the return line helped me out quite a bit on vapor locking. It did not completely solve the problem, but a good share of it is now gone.
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Frank |
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