924Board.org

[B]

Hey everyone
I was looking in my gas tank when I took the sending unit out to clean - I wanted to see about debris - I was thankful to see little - and I did not see a second fuel pump that I thought I was supposed to have -

Does anyone know what the cut-off was for the single pump set-up before the 2 pump was employed?

I thought it was 1979, but I am not as sure now - unless it is not visible from above?

Am I just not seeing it (maybe fumes got to me)?

Thanks very much for you help

Sean B
_________________
1979 924 n/a
BAE turbo
5-speed snailshell

[sciroccosteve]

I have a 79, and when I cleaned my fuel sending unit, I looked into the tank and didnt see one.

Pretty sure 79s do not have an in-tank pump.
_________________
1979 924
2000 V6 Passat
"Let the fools have their tar tar sauce."
C. Montgomery Burns

[old 924]

i only have one pump but mine is a 77..79 should have 2..one at the bottom of the tank and then it go's in to the 2st pump...
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base 77 924 2.0 (may the porsche be with you)

[B]

I did not see one either, but I did not know if it would be visible from the sender opening or if they somehow hid it under something else -

I also noticed there seems to be a time in '79 where they may be one and at some point it changed to 2 pumps - anyone know how valid that is?

thanks again
_________________
1979 924 n/a
BAE turbo
5-speed snailshell

[ideola]

According to the 77-79 PET, chassis numbers F-92491-03158 thru F-92494-00051 were the late models which got the 928 in-tank pump, along with the 911 inline fuel pump, and the single 40cc accumulator. There were three additional variations prior to those chassis:

F-92491-00001 thru F-92491-03157 got the 911 inline fuel pump, the single 40cc accumulator, and the pre-pump filter.

F-92461-04800 thru F-92481-99999 got the 911 inline fuel pump, the dual 20cc accumulator, and the pre-pump filter.

Up thru F-92461-04800 got an "810" numbered inline fuel pump with a single 20cc accumulator and no pre-pump filter.

So what this tells us is that in the 79 model year, the first 3,157 cars did NOT have an in-tank pump, and everything thereafter did.
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erstwhile owner of just about every 924 variant ever made

[B]

thanks Dan -

So it sounds like I should have an in tank pump if my number starts 92492----

does that sound correct?

and if so, would this pump be visible from the sender hole? (I would think so but looked in and did not see one)

thanks again

Sean
_________________
1979 924 n/a
BAE turbo
5-speed snailshell