Printable Version of Topic

Posted by: AvalonFal May 10 2009, 05:36 PM

Fuel pump does not turn on with the ignition. When I put 12V directly to it, it gave it a short spin, then nothing. I don't know if that was the pump coming back to life or its last breath. Anyway, I've been wasting way too much driving time fooling around with the thing, so besides an original Bosch replacement pump, what's the best choice for a new pump? Car is a '74 2.0 with stock d-jet.

Paul

Posted by: SirAndy May 10 2009, 05:57 PM

QUOTE(AvalonFal @ May 10 2009, 04:36 PM)

Posted by: r_towle May 10 2009, 06:24 PM

If you have the early pump (I think the 74 does) that mounts under the car...your only choice is Bosch.

If you have the later, one in...one out pump...the one that mounts up front, you can get a few...I used a delco pump that was $170

the specs were 65 PSI continous...
Go to a decent parts store...look up the correct pump in the huge book of pumps...write does the specs, then look at Mercedes, volvo, VW, etc till you find a pump that matches the specs...

The specs are gonna be hose size, PSI, and GPH.

Rich

Posted by: scoobykvn May 10 2009, 08:24 PM

I don't mean to hijack this post, but I have basically the same question. I have a 1970 that used to have a 2.0 carb'd but I am rebuilding it. I had the fuel pump up front, one in one out. Now I am installing a stock 1.7 injected, what specs should my fuel pump be? Can I still use an inline fuel pump or does it have to be the stock bosch pump?

Posted by: SLITS May 10 2009, 08:33 PM

You need a hi-pressure pump. I would use the one in one out pump to replace the stock pump. All you lose is the "T" in the return line as you no longer need the hose from the pump pressure relief to be "Teed" into the return line.

High pressure pumps are questionable with the plastic lines though in '75 -'76 they moved it up front with plastic lines. Most, using the hipressure pump up front, run stainless or steel lines through the tunnel.

The single in single out is cheaper by far, both from FLAPS or eBay. You can also get the original style from AA, made in China for $200.

Posted by: AvalonFal May 11 2009, 05:51 PM

QUOTE(SLITS @ May 10 2009, 10:33 PM)

Posted by: Cap'n Krusty May 11 2009, 07:05 PM

QUOTE(AvalonFal @ May 11 2009, 04:51 PM)

QUOTE(SLITS @ May 10 2009, 10:33 PM)

You need a hi-pressure pump. I would use the one in one out pump to replace the stock pump. All you lose is the "T" in the return line as you no longer need the hose from the pump pressure relief to be "Teed" into the return line.

High pressure pumps are questionable with the plastic lines though in '75 -'76 they moved it up front with plastic lines. Most, using the hipressure pump up front, run stainless or steel lines through the tunnel.

The single in single out is cheaper by far, both from FLAPS or eBay. You can also get the original style from AA, made in China for $200.

Anybody use this pump? Will it be OK for a '74 2.0L stock d-jet??

http://cgi.ebay.com/ebaymotors/New-Electric-Fuel-Pump-1975-76-Porsche-912- 914_W0QQcmdZViewItemQQ_trksidZp3286Q2em20Q2el1116QQhashZitem27a76d7cd9QQitemZ170
312695001QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories

Paul