Best place for electric fuel pump

[2 Fast 4 U]

Looking thru the threads I can't find an answer to my question:
What is the best place for an electric fuel pump so that it's easy serviceable and doesn't get to dirty?
What about the filter what's the best place for that??

[opelnut10]

The ideal spot is up to you, but it should be under the car and close to the fuel tank. The pump will push more fuel than it will pull and therefore you can use a smaller pump than mounting it in the engine compartment and the fuel will stay cooler, which is a good thing. Filter placement is also a matter of putting it where you can get to it for service and you need two, one between the tank and the pump and one between the pump and carb. if you are going to put the second filter under the hood, also place it where it can be serviced and away from heat.

[opelbits]

I made a mounting plate and used the rear swaybar mounting holes in the body to bolt to.

[soybean]

Here's a good place to start. HTH, Jarrell
http://www.opelgt.com/forums/showpos...3&postcount=14

[2 Fast 4 U]

Originally Posted by soybean Here's a good place to start. HTH, Jarrell http://www.opelgt.com/forums/showpos...3&postcount=14

I have an Ascona [1900] not a GT [wish I had]

[2 Fast 4 U]

opopelnut10:
The ideal spot is up to you, but it should be under the car and close to the fuel tank. The pump will push more fuel than it will pull and therefore you can use a smaller pump than mounting it in the engine compartment and the fuel will stay cooler, which is a good thing. Filter placement is also a matter of putting it where you can get to it for service and you need two, one between the tank and the pump and one between the pump and carb. if you are going to put the second filter under the hood, also place it where it can be serviced and away from heat.

opelbits:
I made a mounting plate and used the rear swaybar mounting holes in the body to bolt to.

Do you have some kind of shield to protect the pump and the electric contacts form street dirt or what?

[opelbits]

You know, I don't remember. Regardless, it's a good idea. Depending on the pump type you have, square Facet or rotary vane, there are quite a few cars that can supply a nifty shield. Look for 70's-80's era european FI cars with a rear underbody mounted fuel pump. Alfa, VW (Type 3), Volvo, Opel that have a cylindrical pump may suppy a shield for the rotary vane type pump. Of course, those cars may also supply a nice rubber-isolated mounting bracket to modify, too. Or you could make your own out of sheetmetal.

A sheetmetal shop (HVAC ductwork) could bend up a nice little shield for the Facet type pump. I find those shops like doing interesting odd-ball jobs, plus they are cheap compared to a real panel-beater or autobody shop. Just make sure you have a nice cardboard template for them to follow. Allow for drain holes, no water/crud traps, and make sure the shield covers the pump in such a way that anything you run over won't go between the shield and pump.

Sounds harder than it actually is.


The wiring should be covered. I ran both wires through the floor (found a convenient hole) with a rubber grommet. My 12v+ wire is inside the car with a covered (insulated) terminal. The ground lead also has a covered terminal. This does two things, one it allows quick disconnection, and two, if either wire comes loose, it doesn't short to the body. Running the wires inside keeps the terminals from the elements and I can maintain a more consistent ground inside.

Something probably should have added in the first post, I could use the swaybar holes because I do not have a swaybar on the back of the GT. If you have a swaybar, engineer this carefully.

[RallyBob]

Originally Posted by 2 Fast 4 U I have an Ascona [1900] not a GT [wish I had]

On all my Asconas and Mantas I mount the electric fuel pumps in the forward part of the rear axle 'tunnel', on the right hand side (between the anti-roll bar mount and the torque tube). It is low enough to draw from the fuel tank efficiently, it clears all the suspension pieces, and it is somewhat protected from road debris and water. I found that when it is mounted behind the axle debris can damage the pump and the wiring. Probably because I like to drive on gravel roads....

Bob

[2 Fast 4 U]

Thank you all for your input now I can draw up a plan for my FI E-pump fitting

[soybean]

I forgot that you have an Ascona. On the 75 Mantas, I believe it was mounted to the passenger side of the car up next to the tank. RallyBobs idea seems to be the best though, and Opelbits idea about a shield, and the disconnects are definately a good idea. Jarrell

[namba209]

Erick, just to be sure we're on the same page, a fuel pump for a carbed engine will have a much lower pressure than one for fuel injected engines. Hopefully you have or will purchase one of correct pressure and don't forget about the return line from the injector rail back to the fuel tank. HTH.

[2 Fast 4 U]

Originally Posted by namba209 Erick, just to be sure we're on the same page, a fuel pump for a carbed engine will have a much lower pressure than one for fuel injected engines. Hopefully you have or will purchase one of correct pressure and don't forget about the return line from the injector rail back to the fuel tank. HTH.

Yep we're on the same page its a rotary pump, I will be using it for the 2.2 FI