Page 1 of 1

Fuel pump rebuild

Posted: Sun Jan 05, 2020 3:24 pm
by Dougieboy1
i need a rebuild for my fuel pump (not the MFI pump but the little cylindrical pump, Bosch 0580970 001)

Anyone got contact details for someone that might be able to rebuild a spare pump that i have which is in a pretty knarly state - rotor is seized, parts of the pressure relief valve missing

Also, anyone got experience of the 'new' version of this pump sold by porsche and parts dealers? Reports from a couple of years back suggested it was not a good quality part (seemed to leak after a short period), especially give the cost of it....Have things improved recently?

Thanks

andrew

Re: Fuel pump rebuild

Posted: Sun Jan 05, 2020 3:58 pm
by stretch
Andrew,
do yourself a favour and buy new. I had three pumps done... none of them work.
The early pumps were Chinese made and leaked. My new pump from Porsche was £560.00. Now made in Germany and have a 3 year warranty.
Dave

Re: Fuel pump rebuild

Posted: Sun Jan 05, 2020 5:36 pm
by BILLY BEAN
There are limits to the "rebuild" of the fuel pump. Cosmetically they can me made to look very good, seals and brush contacts are replaceable. However, once the commutator is worn the pump is a desk ornament as this element is not "rebuildable". As Dave says buy a new Porsche supplied pump.

Re: Fuel pump rebuild

Posted: Sun Jan 05, 2020 7:19 pm
by Dougieboy1
thanks for the wise words both!

Re: Fuel pump rebuild

Posted: Mon Jan 06, 2020 12:06 am
by Nine One One
You might find this thread useful........


viewtopic.php?f=2&t=52070&p=453965&hili ... mp#p453965


http://www.hardi.de/indexe.htm

or you can get them from these guys in Northumberland.

http://www.budgetchandlery.com/pump-12v ... tAodS3kA5A

Re: Fuel pump rebuild

Posted: Mon Jan 06, 2020 9:00 am
by Lightweight_911
.

Unfortunately that thread & link refers to fuel pumps for carb-equipped engines - this thread is about the Bosch pumps originally fitted to mfi engines which require a much greater fuel pressure (around 14 psi vs ~ 3.0-3.5 psi for Webers) ...

Re: Fuel pump rebuild

Posted: Mon Jan 06, 2020 1:02 pm
by Dougieboy1
Thanks Andy, when i read that, it referenced carbs, low pressure etc so good to have an expert confirm it is not relevant to the MFI system.

Have ordered a new pump - quite pricey to say the least. I have renewed the various o rings in my original so will keep that as an emergency spare!

Regards

Andrew

Re: Fuel pump rebuild

Posted: Mon Jan 06, 2020 1:20 pm
by Lightweight_911
Dougieboy1 wrote:Thanks Andy, when i read that, it referenced carbs, low pressure etc so good to have an expert confirm it is not relevant to the MFI system ...
- I certainly wouldn't claim to be an expert - just pointing out that carbs & mfi have different requirements in terms of fuel pressure.
Dougieboy1 wrote:Have ordered a new pump - quite pricey to say the least
I think someone's making a hefty mark-up on those new pumps ... :shock:

.

Re: Fuel pump rebuild

Posted: Mon Jan 06, 2020 8:17 pm
by Dougieboy1
compared to me you are an expert :P