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| | | Forums66 Topics128,029 Posts1,055,417 Members48,422 | | Most Online14,466 Apr 26th, 2026 | | AD Chevy Trucks Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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on the Internet for over 30 years! and not clogged down with Ads! Again, thanks! | | | | Joined: Nov 2009 Posts: 38 New Guy | | New Guy Joined: Nov 2009 Posts: 38 | When I bought my 54 pickup with stock 235 the PO had added an electric fuel pump and bipassed the original pump, he left it in the motor but is not plugged on either side of the pump. Does that matter in the way the truck would run? I want to go back with the old fuel pump should I just order a kit and rebuild that one? Is there any advantage or disadvantage to the electric pump or mechanical pump? I just don't like the way the electric pump has that added on look with rubber hoses and clamps? Thanks | | | | | Joined: Feb 2004 Posts: 29,749 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,749 | Some electric pumps have a habit of causing flooding problems, due to high fuel pressure. If you choose to leave it in place, hide it back near the tank outlet out of sight. I've seen people gut out the original engine-mounted pump and run a straight-through pipe to cary the fuel, with the electric pump mounted near the tank outlet. It's a good idea to wire up a relay that triggers from engine oil pressure in series with the pump, so if the engine stalls the pump doesn't fill the crankcase with gasoline. I've seen several cars and trucks with gas dripping out of the tailpipe, or the crankcase vent from a runaway electric fuel pump. Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt! There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway Love your enemies and drive 'em nuts!
| | | | | Joined: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 | Put a new mech. fuel pump on it & put a spring return switch to the electric pump. That way when it sets for a long period you can fill the carb with the electric pump. Mount it in the frame back by the tank like HRL say's & put a filter in front of it. They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne SuperIn the Gallery Forum | | | | | Joined: Feb 2006 Posts: 549 Shop Shark | | Shop Shark Joined: Feb 2006 Posts: 549 | The two guys that posted first are very knowledgable, but if it were my truck I'd throw that electric fuel pump in the trash and put a new mechanical on it.
You could possibly rebuild the old one but for the money difference, I'd use new. | | | | | Joined: Nov 2009 Posts: 38 New Guy | | New Guy Joined: Nov 2009 Posts: 38 | Put a new mech. fuel pump on it & put a spring return switch to the electric pump. That way when it sets for a long period you can fill the carb with the electric pump. Mount it in the frame back by the tank like HRL say's & put a filter in front of it. If I decide to go this route will the fuel run through the electric pump without it being on when it is not needed? So the object would be instead of having to pump the mechanical pump after sitting awhile I could just hit the switch and give the carb a jump start fromn the electric pump correct? | | | | | Joined: Apr 2010 Posts: 474 Shop Shark | | Shop Shark Joined: Apr 2010 Posts: 474 | You will have to tell us what part number and brand the pump is.Not all electric pumps will allow fuel through them when off.It might just be easy to check it on the truck running with your new mechanical pump if you don't have that info ? | | | | | Joined: Nov 2009 Posts: 38 New Guy | | New Guy Joined: Nov 2009 Posts: 38 | The fuel pump I am looking at is a Facet brand it looks like it is available in 3 different presure choices from 2.75 PSI to 8 PSI what is the ideal pressure I will need for a stock 235 motor? | | |
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