Rebuilding MFI fuel pump (The one that pumps fuel from the gas tank)

Guys,
So I have an extra fuel pump on the shelf from a 73 E MFI parted out long ago. Can this pump be saved and made trust worthy? If so, how?

1. After removing the 4 slot screws, I removed the cap from the end that has the inlet/outlet holes for the fuel lines and noticed two O rings. Is there a replacement source for these two O rings?

2. If not, can I soak the O rings in gasoline to get them to swell up, coat them with bearing grease for protection, reassemble and expect the fuel pump to function normally?

3. Or do I need to proceed further to resuscitate this pump? Do I need to circulate some kerosene through pump for storage protection?

My local Porsche dealer is quoting a price approaching 4 digits for a new one, so I would like to save this one as a traveling spare if possible.

Thanks

John
69 912
73 Sporto S
17 991.2

A fuel pump is a critical item, I myself would not attempt to overhaul one. I have several that I sent out for rebuild sitting on the shelf. I have run these for years with no problem.

Thanks for the reply Rick. So who did you send the fuel pump out to for rebuild?

Thanks

John

More than you want to know:
http://forums.pelicanparts.com/porsc...fuel-pump.html

Is the fuel delivery rate from these fuel pumps critical to active the MFI injection pump. ?

John, I sent it to Fuel Injection Corp. in California. Pump comes back looking like new.

Quote:

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Originally Posted by stretch

Is the fuel delivery rate from these fuel pumps critical to active the MFI injection pump. ?

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One is for carbs,009 I think, and one is for MFI, 001 I think. Carbs puts out about 6 psi,,, and mfi about 35 psi.

So you need a MFI fuel pump for a MFI car and I second Fuel Injection Corp. in California and the pump comes back looking new(what Rick said).

Guys,

Thanks to all for the great help and advice. Email sent to Fuel Injection Corp for rebuild info.

John