Carter fuel pump, Where would you put it Options

[michelfg]

We bought this 914 a couple of years ago. It had the fuel injection taken out and replaced with a carburetor, weber dfev 32/36 so I am stuck with this setup. Recently it has had trouble starting and idling. One of the things we found that the fuel pump a Faset seemed to stop pumping when we cranked the car. Any ideas on that? So I read the internet and finde out racetep says you should use a Carter fuel pump, so I bought one. The Faset was installed under the rock guard under the fuel tank. The Carter does not fit there. Any ideas where I should put this? My car a 1972 1.7 that my son used for a daily driver until we started having problems. Thanks for the help.

[ArtechnikA]

first, welcome !

you aren't stuck with that setup forever - there are other approaches that will work.

if the fuel pump quits while cranking, it's probable that it was wired to a circuit that iws designed to be cut out during cranking for load reduction. the fuel pump should *not* be powered from that circuit...

it's probably best to keep the pump up front, but frankly it can be put anywhere it will fit. it could go in the front trunk - several race cars put them there for a variety of reasons.

when i did my carb conversion (Dellorto) many years ago, i used a Facet and it worked fine; it'll deliver all the fuel a 1,7 will ever need and the biggest think most people don't like about them is that they're loud. if the only problem you're having is that it's stopped working, i'd just replace it with one that works - wired to the proper circuit.

there are several pumps that will work, but since i have a different application (i need a return-style pump) i'm not in a position to recommend a specific alternative. i know they're out there tho...

[michelfg]

Thanks for the information. So in your mind I could actually return it to the engine compartment if I so choose even though I read about pumps push better than pull. Do I have enough gravity to push it back there? That was where the pumps were originally. What fuse should the pump be tied to?

thanks,
Mike

[SLITS]

Fuel level is higher than where you would mount the pump under the engine shelf on the firewall. Shouldn't be a problem. Just cut one of the hoses and see what happens (IMG:http://www.914world.com/bbs2/html/emoticons/ohmy.gif)

There should be plenty of room up front to mount it.

And yes, electric pumps are better "pushers" than "suckers".

[Allan]

QUOTE (SLITS @ May 27 2005, 08:02 PM)

Fuel level is higher than where you would mount the pump under the engine shelf on the firewall. Shouldn't be a problem. Just cut one of the hoses and see what happens (IMG:http://www.914world.com/bbs2/html/emoticons/ohmy.gif) There should be plenty of room up front to mount it. And yes, electric pumps are better "pushers" than "suckers".

(IMG:http://www.914world.com/bbs2/html/emoticons/agree.gif) (IMG:http://www.914world.com/bbs2/html/emoticons/givemebeer.gif) Ilove this guy.....

[ArtechnikA]

QUOTE (michelfg @ May 27 2005, 09:35 PM)

I could actually return it to the engine compartment if I so choose even though I read about pumps push better than pull.

originally they were located below the engine shelf, right where the heat exchanger dump valve blows hot air on it all the time, which is why the factory moved it up front.

yes, you're much better off using it as a pusher, and i'd do whatever was possible to mount it there -- smaller pump, different location, something. but you *could* (technically) mount it anywhere although as close to the tank as possible is best. yes, if you can maintain a gravity-fed hydraulic head to the input it'll work MUCH better.

i like using the recirculating style because it helps keep the fuel cooler and filters all the time, even though i just used the Facet style when i did my car (a long time ago - we have many more pump choices these days).

there are a couple of threads here about fuel lines. plumbing a separate return line now may be more hassle than you find worthwhile now so don't stress if that's true.

i just packed away my wiring diagram, which is for a different car anyway (one that had carbs from the factory). i'd use whatever fuse originally powered the FI computer; you know that one has power during the cranking cycle...

[tommy914]

I would recommend leaving it up front somewhere. I had a Facet in the back, and it tended to make a lot of noise when just idleing. I think the heat was giving it problems. This problem went away when I moved it up front.