78 Electric fuel pump alternatives FAQ

[skiprush71]

i am trying my best to help my sister with her Bus and have been searching for an answer. she has a FI bus and the fuel pump is dead i guess as it wont spin when i put 12 V to it. i need to know what is the full pressure the pump puts out? i assume it has to be high since its FI. I ask becasue she doesnt have the 150 to 200 bucks to buy a stock replacement so I was going to buy a pump from the local auto store. Any help on the pressure rating or even an after market part that will work would help out greatly. thanks for helping as I never have worked on a VW before.

[busman78]

Around 35psi, there are several used for sale in the classified section.

[skiprush71]

Thanks. i guess i will learn to navagate this place.

[Randy in Maine]

The pump actually does not put out a lot of pressure, just volume. Pressure in the fuel rail is maintained by the fuel pressure regulator.

Looks sort of like this...

Get the correct pump though. Money well spent.

http://www.busdepot.com/details.jsp?partnumber=GFP301

[dnm21498]

What skiprush71 might be trying to get at is off of what cars can he get a full pump that will work on the bus.

[skiprush71]

thanks, so its more like gph than psi. man i have already spent alot on this thing and its not even mine lol. well if i got to buy it i got to buy so thanks for the info. so far this green book on the FI and other stuff i bought not sure of the name has been a life saver. I thought since i work on my 70 camaro hers is cake. boy was i wrong.

[skiprush71]

yes my plan was buy some generic electric pump and make it work at least until she can buy the right one. i need it to move in and out of my garage and pushing it for a better word sucks.

[Randy in Maine]

Usually the reason the fuel pump dies is that the little square plastic filter just before it is full of rust (from the rusty fuel tank), and has blocked the flow of the coolant (the fuel) to the pump.

Having old dead gas in the pump is also a killer. Some people have been known to put the pump in some diesel fuel and run the wires back and forth so see if they can get the pump to barf up the crud that is in there. Sometimes it works. Sometimes it doesn't.

Also of interest is making sure the power source (the double relay) really is delivering power to the pump.

http://www.itinerant-air-cooled.com/viewtopic.php?t=5460

Here is how you test for pressure.

http://www.itinerant-air-cooled.com/viewtopic.php?t=213

[dnm21498]

I got one off a vanagon from the junk yard

vanagon used sim. FI systems untill about 86 i think

[Wildthings]

You need a pump capable of putting out 35 psi at the required volume. It takes both psi and volume, you essentially can't have one without the other. The pump has to be capable of making the pressure at the required volume for the regulator to regulate it. There is nothing particularly special about this pump compared to other FI pumps though, a generic pump will do.

[1977_L63H_P27]

Didn't we just have a discussion where it was said that some years of the Ford Ranger had a pump that was comparable?
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[VDubTech]

[jopasm]

Here's the thread w/ the ford ranger pump:

http://www.thesamba.com/vw/forum/viewtopic.php?t=50716&highlight=ford+ranger+fuel+pump

[SGKent]

the Bosch fuel pump as roller bearings in it. Some fuel pumps like that can exceed 100 PSI. What keeps them down is that the pressure regulator holds it down by letting fuel leak past it back to the tank. They aren't meant to be run dry as it can destroy them.
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"Most people don't know what they're doing, and a lot of them are really good at it." - George Carlin

[raygreenwood]

[skiprush71]

thanks for all the help. she actually gave up the cash to buy one, i guess she wants it fixed more than i thought. put the new pump on after draining the nasty old gas and it fired right up.

[78Kombi]

[sharkskinman]

85'ish ford ranger fuel pump(on the frame)

remove the Y back at the fuel pump and straight it to the return
or rerout the y at the inlet to the pump

I have one on my 71 411 and have an extra for my 71 T3

Both Fuel Injection

got them out of a junk yard for 22$ a piece

works Perfectly
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74 Mexi Swamp Thing. 70 square volksrod (Swamp Rat)..65 C10

[dwill49965]

Is there a Ford Motorcraft part number or anything like that on it? A search for an "85'ish" Ranger fuel pump gives a lot of results, including various in tank pumps (obviously not right), as well as mechanical, and a host of inline electric ones, including a Bosch, part number 69100 (according to Rockauto.com).
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Darryl
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'78 Westy, Boston Bob built 2.0 L, FI, MSD 6A

[sharkskinman]

PERFORMANCE ELECTRIC Part # P37

http://www.vistaautoparts.com/auto_parts/fp2002X39675.htm

http://www.fuelpumps.com/19851988-ford-ranger-fuel...-1686.html


anyone like this

i got mine of a wreck cuz its cheaper

it sits just under the driver on the frame

the key is just finding one that has bibs that fit our fuel line
SOME are Bigger
but it seems mine fit perfectly


some have plastic fittings
mine has brass

the one that "clips" in is perfect for the fuel line

search type 3 forum for fuel pump or ford fuel pump

Its so hard and expensive to replace them
let alone have them rebuilt
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74 Mexi Swamp Thing. 70 square volksrod (Swamp Rat)..65 C10