mechanical fuel pump

im getting ready to change back to a mechanical fuel pump and have never replaced one before. Im hoping its a pretty straight forward type thing is there any advice someone can give me?

 

you say..."change back to"...
the motor (302) had one on it before?
if so, remove the...block off plate, clean the mounting surface...install pump...w/gasket.

...:Handshake...

 

when i started fixing up the car instead of replacing the mechanical pump i just put in an electronic one i had laying around but the old one is still in there.. is that bad?

 

how did you run your fuel line from the E-pump to carb?

 

the pump is mounted on the firewall and the line is just going from that to the carb..

 

So the old mechanical fuel pump is attached to the motor still? Is it aftermarket, or, stock? If it still works, you might just need to re-run the fuel lines to it.

If not, and you decide to run a new one for whatever reason, it's pretty straight-forward. You just need to be mindful of the location of the fuel pump eccentric in relation to the pump's arm.

The fuel pump eccentric is a small, cup-shaped, component. Kinda looks like a hole saw without the teeth. It is mounted to the front of the camshaft timing gear and is off-center if you were to look at it straight on. This component rotates in relation to the camshaft in a loping fashion and drives the arm of the fuel pump rapidly up and down. This is what moves the fuel throughout the body of the pump.

The fuel pump eccentric may hinder the installation of the fuel pump mildly by applying force to the rocker arm of the pump. No big deal. Just be sure to line your bolt holes up before running the bolt in to be sure you don't strip it. Also, some oil-resisitant sealer on both sides of the new pump gasket wouldn't hurt. So, to sumarize:

1.) Remove all the gasket material from the old mounting pad. Apply oil-resistant sealer to both sides of the new pump gasket. Position the new gasket on the pump flange and hold the pump in position against the mounting pad. Make sure the rocker arm is riding on the camshaft eccentric.

2.) Press the pump tightly against the pad, install the retaining screws, and alternately torque them to specifications.

3.) Connect the fuel line inlet hose and the outlet line. Be sure clamps/fittings are tightened securely.

4.) Operate the engine and check for fuel leaks.

Happy wrenching!

Eric

 

where does the line come from that's feeding the E-pump?

 

why did you install an E-pump to start with?
also, mounting it on the firewall is not the best place to mount an E-pump.

 

the orignal fuel pump doesn't work and i had the e pump laying around so i put it in because i didn't have the money for a new mechanical at the time and the line comes straight from the tank where it did stock