murfthesurf13

Planning for my September trip from Utah to New York. I was advised to take along a fuel pump in case mine quits. I just read about the guy stuck in Texas. I've seen them advertised on Ebay from $35- 150. Anyone have a recommendation for my 1979? Thanks.

Randy V

Are you really going to change out a fuel pump on the side of the road?

I can see carrying an extra FP relay, but sometimes you gotta roll the dice and drive.

You gonna carry an extra transmission as well?

StratfordShark

This is topical!

I was at a big Porsche show last week at the national motor museum in England. Over 600 Porsches and around 25 928s which as you know is a big deal in our world.

I helped out another owner whose 928 GT died at the exit - diagnosed a failed fuel pump. His recovery service had to trailer him away as of course they don't carry that pump. I had cover off to test pump and if I'd had a couple of flare wrenches could have changed it if spare was available - you don't even need to lift the rear.

It got me thinking that a pump would be useful to carry on a long trip. Even if you couldn't change at side of road (those fuel line nuts can be tight), it would save sourcing the part if you were recovered somewhere with the tools to change it out. I don't know how unusual our pumps are but if I was planning a long road trip I think I would carry one - they are pretty easy to replace

Speedtoys

If that's where it fails, that's kinda the place you gotta replace it.

BTDT.

murfthesurf13

Randy, I read the story about the guy in Texas and thought something that small is easily stowed in the car for that emergency. I would rather have that part, then try and source it some where in the middle of New Mexico. At least this way a mechanic could probably assist if they had the part. I'm simply asking if anyone knows why I've seen such a difference in the prices and is there one they would recommend. I do have a few extra relays. Thanks.

James Bailey

The very inexpensive pumps are made in China by someone who has never seen a 928....

Hilton

If you want to carry a spare pump as backup, grab a used one from 928intl, not a cheapo chinese one of dubious flow-rate and quality.

I know a few people who carry spare fuel pumps on their long drives (here in Oz, its pretty easy to get very remote).

GregBBRD

Depending on where you '79 falls in the serial number sequence, you have a minimum of two fuel pumps and possibly three.

SeanR

If you are worried about it, change the pump and the filter before the trip and don't worry about it for a dozen years.

dr bob

^^^^^^^ This x928. Pickle the old ones in ATF or MMO so it doesn't rust inside, and throw it on the shelf at home in case you need it in another 25 years.

Ditto the critical relays, etc. that are regular carry-along recommendations. Not saying don't carry a jumper and a couple relays, but change the known critical ones in the comfort and safety of your own garage.

Dave928S

^^ This X 928 +1

That's what I've done on the GTS. Fuel pump was OK, but changed to a new one, and have the old one stashed as a spare. All new critical relays, and have a jumper and a few spares.

OTR18WHEELER

Like everyone says, either change it now, or at least carry a known good one and the tools to change it.
When I did mine at home, I spent more time going back to the tool box. With the correct tools needed in hand, the fuel pump is a quick and easy job.
Don't. Trust eBay for specs, talk to anyone of the parts sponsors here.

StratfordShark

How do you "pickle" the pump? Fill it with ATF or literally keep it in jar of oil?

dr bob

Just flush it with ATF or MMO. Easy enough to put power on it for a moment and let it suck a little through. Then it goes in a ziplock and then the packaging the new pump came in. If you wrap it in an ATF-soaked paper towel in the bag, the exterior will stay as it is now.

Absent the flush and pickling, used pumps often seize up in long-term storage. ATF is thin enough to flush out quickly if you need to return it to service.

The in-tank turbine pumps don't have a lot to seize up, but the main pump have rollers inside that deserve the extra steps.

StratfordShark

Thanks Dr Bob that's really useful info about storing the pump