fuel pump ? (small block)
Thread Starter
Safety Car
Joined: Oct 2000
Posts: 3,593
Likes: 103
From: Southern Indiana
fuel pump ? (small block)
I used a plastic fuel filter and the stock pump pulsed so hard it busted the fitler housing.
So I changed to a steel housing filter but I can still feel the rubber hose before and after pulsing plus the filter even moves like a heart pumping.
I now know what caused the car to catch fire before I bought it.
Is there something wrong with the fuel pump?
So I changed to a steel housing filter but I can still feel the rubber hose before and after pulsing plus the filter even moves like a heart pumping.
I now know what caused the car to catch fire before I bought it.
Is there something wrong with the fuel pump?
Team Owner
Joined: Jun 2000
Posts: 38,923
Likes: 1,482
From: Southbound
Cruise-In II Veteran
Re: fuel pump ? (Tim H)
A stock Chevrolet small block fuel pump will not deliver enough fuel line pressure to make a filter pulse/pump. There is definitely something wrong with the fuel pump. I would recommend replacing the unit.
Team Owner
Joined: Apr 1999
Posts: 21,953
Likes: 1,445
From: Reno Nevada
2024 C3 of the Year Finalist- Modified
Re: fuel pump ? (Tim H)
I also have a 79 L-82. This is just a guess on my part. the stock pump and correct aftermarket pumps used a pressure bypass return line. So if you look on the frame rail right down next to the pump you will see a larger supply line and a smaller return line. If it's not connected go get the correct pump. Your other choice is get a inline regulator which will dampen the pumps plunger pulses.
