Electric 2 Mechanical Fuel Pump

[BrookelynnGreen]

1986 Chevrolet C10 SWB

I have an electrical fuel pump, I'm wanting to use a mechanical fuel pump. Can you guys give me some advice on what needs to be done in order for me to use a mechanical fuel pump? Would I need to take off the electrical pump or leave it? Would I need to cut any wires feeding it power? When I turn my truck on, the electrical pump "clicks" pretty loud, it gets annoying, and also I have heard mechanical pumps are more reliable.

[LONGHAIR]

The "more reliable" thing is bunk, most of the cars/trucks on the road today are fuel injected, and have electric pumps.

If you just want to swap it anyway...
You must first be sure that your engine is even capable of running one. Newer blocks are not equipped for it, but if your '86 is original, it should.
Next, you need to determine the state of things. It is possible that the original pushrod is still there and all you need to do is remove the cover plate and install the new pump. Connect the lines and you are almost done. I would remove the electric one though. You don't want the mechanical pump to have to draw through it.

Personally, I would leave the electric and drive it. There are pumps that don't make as much noise, but you will still hear most of the ones that are externally mounted, unless your exhaust is fairly loud.

[njlimbaugh]

You can leave the electric pump installed; just put a toggle switch on it an keep it for backup. Neither pump will know the other one is there.