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My original fuel system still works... now, what should I replace? :)

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Old 06-24-2012 | 05:09 PM
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Default My original fuel system still works... now, what should I replace? :)

Yes, I still have the original fuel lines and I'm carrying a fire extinguisher. No signs of leakage, but I'm already eyeing them for replacement in the next couple weeks (probably Lart's, though I have a pending cart at Pelican today). While I'm at it, what else do I need to replace? The fuel pump and the rail are solid far as I can tell, but everything else is starting to look pretty run down. It all works great now and I'm on a budget this summer, so I'm hesitant to touch anything more than I really need to. I'm not replacing it all just yet. Maybe next year, including injectors. WWRLD?
Old 06-24-2012 | 05:42 PM
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At least the front fuel line, it's the one that fails first. If you think everything is original I would also send the injectors to Witchhunter for cleaning and change the fuel filter & check valve.
Old 06-24-2012 | 08:16 PM
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That's roundabout what I was thinking as well- thanks!

EDIT: just ordered a set of lines from Lart.

Last edited by Sentinelist; 06-24-2012 at 09:05 PM.
Old 06-24-2012 | 09:18 PM
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I did not know Larts sold fuel hoses.

You should check the fuel rail jumper:
http://forums.pelicanparts.com/porsc...se-update.html

Rennbay has late 944 fuel line kits--I bought 2 for my early 924Ss
My DIY for the early 944, Lindsay Racing has a very good DIY for the late series.

http://forums.pelicanparts.com/porsc...arly-944s.html

Or you could just wait ......
http://forums.pelicanparts.com/porsc...-carbeque.html

GL
John
Old 06-24-2012 | 09:27 PM
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Originally Posted by John_AZ
I did not know Larts sold fuel hoses...
Lart does nice fuel hoses, here is a set of his on my na:

Old 06-24-2012 | 09:36 PM
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Yes, I just checked.

http://www.ebay.com/itm/Porsche-85-5...item3a75541c92

John
Old 06-24-2012 | 11:10 PM
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Looks like a decent buy, but it looks to me like they could stand to be a couple inches longer to reduce the bends right at the upper connections? Personally I was about convinced to get the Rennbay kit that you can spec the HP hose any length, so you can run all the way back to the firewall, then around the tower and out the inner fender.
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Last edited by 944Ross; 06-25-2012 at 12:43 AM.
Old 06-24-2012 | 11:22 PM
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There is someone on the pelican parts forum who rebuilds the jumper line for a reasonable price. I would look into that if you are on a budget. I thought mine was fine, but then when I got my replaced mine was show dried out it actualy broke when I tried to bend the hose.
Old 06-24-2012 | 11:48 PM
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Originally Posted by John_AZ
I did not know Larts sold fuel hoses.

You should check the fuel rail jumper:
http://forums.pelicanparts.com/porsc...se-update.html

Rennbay has late 944 fuel line kits--I bought 2 for my early 924Ss
My DIY for the early 944, Lindsay Racing has a very good DIY for the late series.

http://forums.pelicanparts.com/porsc...arly-944s.html

Or you could just wait ......
http://forums.pelicanparts.com/porsc...-carbeque.html

GL
John
Yep. I also want to do that jumper hose, but I haven't found one under $100. Really? $100? Will gladly pay half that, but c'mon. Haven't really dug in to see what braided options are available (none on eBay, just OE as usual). I probably won't tackle the entire line system to the back. I would assume these are generally not a weak point if the car isn't driven over rough surfaces/debris.

Scary thread for sure on the car-b-que. Guy totally lucked out with only ~$1200 in parts he was able to do himself. But the culprit in that case was the fuel damper, so that's exactly why I'm looking at everything - proactively - as this car is driven often and more than a few times a week. I often drive the 951 for a week or two, then switch to the Audi for a week or two. The on-two/off-two schedule is pretty good as typically one of them needs something and waits on parts!
Old 06-24-2012 | 11:52 PM
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Originally Posted by John_AZ
That's it. 1 of 2 sold was me.

Originally Posted by 944Ross
Looks like a decent buy, but it looks to me like they could stand to be a couple inches longer to reduce the bends right at the upper connections? Personally I was about convinced to get the Lindsay (?) kits that you can spec the HP hose any length, so you can run all the way back to the firewall, then around the tower and out the inner fender.
I guess YMMV. MAGK944's look good.

Originally Posted by 86 951 Driver
There is someone on the pelican parts forum who rebuilds the jumper line for a reasonable price. I would look into that if you are on a budget. I thought mine was fine, but then when I got my replaced mine was show dried out it actualy broke when I tried to bend the hose.
OK, I saw that guy on there from one of the links above I think- I'll reach out to him. Worth doing at the same time.
Old 06-24-2012 | 11:55 PM
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My tentative list are all the engine bay lines, FPR, damper, filter, and the check valve. Thinking about having WitchHunter clean the injectors as well.

I can't see how the rail would go bad. It'll be obvious when the pump goes- will burn that bridge when I get to it. Hopefully not literally! Continuing to carry my FE after this regardless...

Last edited by Sentinelist; 06-25-2012 at 01:25 AM.
Old 06-25-2012 | 12:47 AM
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If you're going to pull the pump to replace the check valve, consider adding an in-line filter AHEAD of the pump, or at the least replacing the sock inside the tank. Personally I have found the sock to be ineffective and pricey. I used a metal can filter from Summit Racing with 1/2" connections ahead of the pump in a loop of line. Not pretty, but it stops particles that the sock didn't (which cost me a new pump, 2 weeks after installing a new one). http://www.summitracing.com/parts/MRG-2526/

Last edited by 944Ross; 06-25-2012 at 01:35 AM.
Old 06-25-2012 | 01:25 AM
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Originally Posted by 944Ross
If you're goiong to pull the pump to replace the check valve, consider adding an in-line filter AHEAD of the pump, or at the least replacing the sock inside the tank. Personally I have found the sock to be ineffective and pricey. I used a metal can filter from Summit Racing with 1/2" connections ahead of the pump in a loop of line. Not pretty, but it stops particles that the sock didn't (which cost me a new pump, 2 weeks after installing a new one). http://www.summitracing.com/parts/MRG-2526/
Interesting thought. Anyone else done this? Generally I'm an OE-design-only guy...
Old 06-25-2012 | 01:36 AM
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I believe I bought a braided jumper line with the factory ends from Lart on ebay in November for my car. It was somewhere around $70.
Old 06-25-2012 | 03:41 AM
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Ok, haven't found one yet. May have to just go with an OE replacement. Paragon has them at $82, cheapest I've found so far. I'm going to contact a local dealer with the VIN to check on the recall status on this piece tomorrow- nice bonus if this is free.

Also going to check out the fuel filter and related lines tomorrow evening I hope before I place the orders.



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