Fuel Pump 911SC -- Aftermarket Replacements

[dduclaux]

Can anyone provide a link to specs (or the specs) for the fuel pump on my 1979 911SC, e.g., min psi, flow rate, etc. I want to research the possibility of buying an aftermarket replacement for the Bosch. Does anyone have any advice. Thank you, Duane Duclaux

[kach22i]

How did you figure out it was the pump and not the fuel relay or other issue?

[dduclaux]

Tested the pump directly with 12v source. That test backfed the relay (its whistling indicated the relay was operational). Pulled the pump, hit it with 12v -- could feel a "bump" inside the pump -- it wanted to turn but couldn't. Confirmed the pump was bad when I disassembled it -- it had been sitting up for several years and old fuel seemed to have varnished one pin in the impeller frozen.

[john walker's workshop]

i've never heard of an aftermarket, non-bosch pump.

[kach22i]

Thank you, I still have to dig into my problem. The car has been sitting for nearly a month.

[Tim Hancock]

I believe there is a Piersburg or something like that, pump out there.
A while back I was looking for a replacement for my daughters old 924 and it seems I came across the name Piersburg as a replacement. I ended up with a '79 911 Bosch pump which is what the superceded pump is now for the old 924's. I wish I could remember more but try searching the web for Piersburg (it may have been in a Performance Products catalog).

[Superman]

I'm probably Pelican's reigning champion cheapskate, and I probably would not be interested in using an aftermarket fuel pump. Those things work HARD, and I don't like walking away from my car on a deserted stretch of road in the middle of the night while it's raining.

[smestas]

Take a look at this previous thread posted by Jim Sims.

Cooling the jets on Nine-mile Hill

[Oldporsche]

Many years ago, I tried to start my 930 which had been sitting a long time. I found that the front pump was frozen. I soaked it in carb cleaner and hit it with 10 vts once in a while. After a couple of days of soaking and rinsing it out, I pulsed it one more time and it worked!

David Duffield

[Rufblackbird]

FWIW, I've been running an universal Bosch pump, PN 0 580 254 909 (got mine for $150 when I was in Maryland) for about 12K miles on my '78 motor without problems. Pelican may be able to get it for you?

[Gordo2]

I have recommended this item to Pelican. Walbro makes an in-line pump that is a one for one no brainer install. Around $150.

I've had one on my '83 for around 6 months.


Good Luck, Gordo