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Porsche 924 - In tank Fuel Pump
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Shurick  



Joined: 15 May 2005
Posts: 488
Location: Russia, Moscow.

PostPosted: Thu Apr 13, 2017 5:44 am    Post subject: Reply with quote

It looks like all are happy with Walbro pump.
http://garage.ideola.com/prod-TuneUpKits.html#Fuel
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WBR, Shurick
'79 931 -- intercooled K26-3060-6.10 turbo @ 1.2 bar, EFI+EDIS, 951S brakes, stripped interior, 951 look.
'86 924S -- R.I.P.
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brooksdc  



Joined: 05 Jul 2015
Posts: 12
Location: DALLAS, TX

PostPosted: Mon Apr 17, 2017 1:19 am    Post subject: In Tank Fuel Pump bypass Reply with quote

I have a 1980 931 that sat for a while with bad gas. We have cleaned out the tank. The car runs, but seems to have a fuel delivery issue. The external fuel pump works fine, but the in tank fuel pump does not, so I figure the in tank is restricting the fuel getting to the external pump.

Reading back through these posts from 2015, folks mentioned by bypassing the in tank pump. Although, on a different board Ideala suggested (in 2012) that while it the in tank pump might not be necessary, he probably wouldn't bypass it on a turbo.

A few questions.

Has anyone had success running only the external pump on a 931? Any issues?

I have read on a 928 board that the in line pump can be replace with a fuel filter screen (p/n: 928.201.081.04). Has anyone had success with that?

What other way could the in tank filter be bypassed? Can one "core" out the pump?
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1977 924 MARTINI EDITION
1980 931 (two)
1986 944 NA white
1988 944 NA red
1988 944 LS1 hybrid
1986 951 black
1986 951 red
1988 951 Silver Rose
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ryanspud  



Joined: 05 Jun 2015
Posts: 15
Location: Malta

PostPosted: Tue May 09, 2017 2:55 am    Post subject: Reply with quote

Hey brooksdc

So sorry for the late reply but I wasn't following my emails.

I kept the external pump at the same place and the factory fitted one too. Between the external pump and the tank I added a small volvo fuel filter just in case dust from the tank comes into the external pump.

Something I do is try the keep the tank half full with fuel just to ease it up on the pump but never had any issues so far neither performance wise.
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1980-924  



Joined: 21 Jul 2013
Posts: 31
Location: Western PA

PostPosted: Tue Jul 25, 2017 12:43 pm    Post subject: Single external fuel pump eliminating the in-tank fuel pump Reply with quote

I can recommend this one:

The Walbro Standard Fuel Pump Kit (GCL604-1)

Check this thread:

http://924board.org/viewtopic.php?t=38945&highlight=1980924
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1980 924 NA 5 Speed
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Bagpype  



Joined: 29 Jan 2016
Posts: 2
Location: Atlanta, GA

PostPosted: Sat Aug 18, 2018 9:39 am    Post subject: Re: In Tank Fuel Pump bypass Reply with quote

brooksdc wrote:
I have a 1980 931 that sat for a while with bad gas. We have cleaned out the tank. The car runs, but seems to have a fuel delivery issue. The external fuel pump works fine, but the in tank fuel pump does not, so I figure the in tank is restricting the fuel getting to the external pump.

Reading back through these posts from 2015, folks mentioned by bypassing the in tank pump. Although, on a different board Ideala suggested (in 2012) that while it the in tank pump might not be necessary, he probably wouldn't bypass it on a turbo.


I have read on a 928 board that the in line pump can be replace with a fuel filter screen (p/n: 928.201.081.04). Has anyone had success with that?

What other way could the in tank filter be bypassed? Can one "core" out the pump?

I know this is an old thread but I have a dead in tank pump on my 924 turbo. Will a stronger external pump be sufficient for a turbo car or is the in tank pump necessary?
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