My original fuel pump is getting too funky and I want to replace it with an electric fuel pump. Can anyone post a picture of where they placed the electric fuel pump. I looked under my car and I can't see an obvious placement.

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1977 MGB Brooklands Green (lowered)


An expert is someone who knows a lot about a few things. They continue to learn more and more about less and less. Until eventually, they know everything about nothing.

MGBs have electric fuel pumps to begin with. It should be visible inside the right rear wheel well.

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-Desmond Mullen

Perhaps you are confusing electric with electronic? Some people convert their original pumps to solid state, or buy them new in solid state form. Others prefer to rebuild their existing pump or buy a new original type. I have both types and have had no major problems with either in the past 20 years.

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Sorry, I meant electronic fuel pump. I want to replace my old pump with a more reliable "electronic". I just need to know where to place it on the car.

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1977 MGB Brooklands Green (lowered)


An expert is someone who knows a lot about a few things. They continue to learn more and more about less and less. Until eventually, they know everything about nothing.

Earlier B's had it nestled in with the right battery box (behind the right rear wheel). I'm told that newer, RB cars have it in the trunk.

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Terry Ingoldsby
terry.ingoldsby@DCExperts.com

You may want to consider sending your pump to Dave DuBois. He gets a very reasonable amount to rebuild the original SU pumps. He cleans them up to better than original, new parts (don't remember which ones) and converts to electronic---no more points.

I urge you to do that because of the originality factor.

I appreciate the suggestion, but I already have the new pump. I no longer care about originality...just dependability. I may send him the original and have him rebuild it...that way if I don't like the new pump I can always put the old one back in. Still need suggestions as to where to locate the new pump. It says that it has to be installed at a 45 degree angle...whatever that means?

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1977 MGB Brooklands Green (lowered)


An expert is someone who knows a lot about a few things. They continue to learn more and more about less and less. Until eventually, they know everything about nothing.

Hey Barney, no problem!

I have seen pictures of aftermarket pump mounting locations. I'll see if I can find one for you. BRB.

Put it right where the original was.

Which is right IN FRONT of the passenger side rear wheel.

If you jack up the back of the car on the passenger side, right rear wheel removal makes this easier, then you'll see right where the original was. Just install the new one right there. This way, you don't have to re-route any fuel lines.

One thing that is critical if you are using an AFTERMARKET type fuel pump is to also install a fuel regulator up around the carbs. One thing that aftermarket electric fuel pumps do is provide much more pressure than the MGB carbs really need. After time, the metering needle (whichever you have) tends to get worn down and then too much gas gets in past the valve and floods the bowls which causes some pretty crappy performance and flooding.

So, proceed with caution. I don't know exactly what carbs you have on YOUR car, but the webers and SUs on most MGs only need around 2-3 psi of fuel pressure, anymore and you'll cause the problem mentioned above over time.

B

You mean to say that an MGB does not need one of these?!

video: [videos.streetfire.net]

He has a 77... isn't the pump mounted in the trunk, to the right side of the spare tire?? If so, I would put it in the same place. No additional wiring or re-routing of fuel lines.

The old pump is located thru the trunk. The electrical connections are inside the trunk and the gas connections are under the car. I found the correct location for the new pump and I will post pics after I get it installed. Thanks for all your help...as usual.

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1977 MGB Brooklands Green (lowered)


An expert is someone who knows a lot about a few things. They continue to learn more and more about less and less. Until eventually, they know everything about nothing.

If you bought the SU electronic one it's a direct replacement. If you bought an aftermarket one from your local parts store, well then you better be sure what pressure it puts out. If it's the 3-5 psi that most stores have on their shelves then you need to get a regulator(unless you have a Weber)



Edited 1 time(s). Last edit at 10/22/2009 06:28PM by mgbgts.

If you bought one of those Facet-Purolator fuel pumps, be sure that you mount it so the outlet is above the inlet. There is a plunger inside the pump that helps to keep it primed. If you mount it the other way, it will hammer like crazy until it primes itself. This will only be evident on first starts of the day, or on hot days. If you mount it the correct way (inlet below outlet at a 45 degree angle with as short as possible of a line between tank and pump, and no more than a foot above lowest possible fuel level), you will have pretty good luck with it. It may make a little extra noise on first starts when it has sat for a bit, but it goes away quickly. I have the weber setup and my Facet-Purloator pump puts out an advertised 4-7 psi. 3.5 is desired, however I have noticed no issues with this. It is a Facet- Purlolator Posi-Flo FEP 06SV. Probably not what you have, but if it is I hope this helps. B



Edited 2 time(s). Last edit at 10/22/2009 06:20PM by bradlymoore.

Barney - If you got the proper model of the Facet pump, you won't need a pressure regulator. There are several models that put out 4 psi or less, which will work fine with SU carburetors. If the pump is too noisy, you can get sound mounts from Pegasus Racing [www.pegasusautoracing.com] that will quiet right down to where you can barely hear it.
Cheers,

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Dave DuBois
1953 MGTD
1966 MGB
[homepages.donobi.net]

Thanks for all your help. I have a Facet which puts out 3.5. I located the pump on the outside of the battery box. I still need to rerun fuel lines and power...my plan for the weekend.

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1977 MGB Brooklands Green (lowered)


An expert is someone who knows a lot about a few things. They continue to learn more and more about less and less. Until eventually, they know everything about nothing.

Got my new fuel pump installed tonight. I had to rerun the fuel lines and the electric, but it was a easy job. Now she starts great...hopefully..

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1977 MGB Brooklands Green (lowered)


An expert is someone who knows a lot about a few things. They continue to learn more and more about less and less. Until eventually, they know everything about nothing.