924Board.org

[agfisher]

I really need to clean up all the lines in the back of my 924 from the fuel tank to the hard lines. I think it's like 6 lines and the fittings. Here's my idea and please shoot holes in it.

1) Cut the compression sleeves off of all the hoses fittings.
2) Remove and toss the old fuel lines.
3) Drop the fittings into my tumbler(http://www.eastwood.com/ew-hd-vibratory-tumbler-w-media-pushbutton.html) for cleaning and polishing.
4) Electro-plate the fittings (http://www.eastwood.com/ew-electroplating-system-tin-zinc.html)
5) Re-assemble the hoses using fuel injection line and fuel injection clamps?

So how does that sound? I'm assuming that fuel injection hoses and clamps can deal with the pressures coming from the fuel pump?
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1977 924 N/A Martini Edition

[fiat22turbo]

You could also see if there is an Oil Filter Service or Hydraulic hose shop near you. They can rebuild the lines with new hose, clamps, etc.

I use braided line with EFI clamps. I'm also running about 50psi. Though I can say that I've dead-headed the system a few times with no leaks.

Pay attention to the vent lines as well, they can cause gas fumes in the cabin or worse (since it is the fumes that ignite)
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Stefan
1979 924 Carrera GTS (clone-ish)
1988 944 Turbo S (Silver Rose)

[agfisher]

[fiat22turbo]

Dead-headed. Meaning to run the pump's full capabilities into the system with no pressure relief.
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Stefan
1979 924 Carrera GTS (clone-ish)
1988 944 Turbo S (Silver Rose)

[agfisher]

Well that makes sense. So it sounds like this solution could work pretty well and clean up those rear fuel line which are a real mess.
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1977 924 N/A Martini Edition

[agfisher]

Anyone have any recommendations for size (ID?) and supplier for fuel injection hose to use from the tank (I know the tank to pump is low pressure but since it's a short distance I'd use the same stuff.) to the hard lines?

Something like this (This is for the AN 4 sized stuff)?

http://www.speedwaymotors.com/Aeroquip-Special-Application-Socketless-AN-Hose-Blue,56.html

or this (AN 6 size)
http://www.speedwaymotors.com/Blue-Push-On-Hose-6-AN,1007.html

The description say it is socketless (uses push on fitting which is what the standard 924 fuel fittings are under the crimped-on clamps) and it's rated to 250 psi. I would use a fuel injection clamp with it.

Clamps like these
http://www.jegs.com/i/JEGS+Performance+Products/555/16047/10002/-1
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1977 924 N/A Martini Edition

[fiat22turbo]

I believe I used -6 as that was what I had and it fit the standard fittings with an EFI hose clamp to hold the hose in place.

The trick is to cut the old hose off and re-use the stock fittings, saves money and unless the fittings are damaged they fit perfectly on the odd-ball metric bubble flare fittings that Porsche used.
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Stefan
1979 924 Carrera GTS (clone-ish)
1988 944 Turbo S (Silver Rose)

[agfisher]

OK, I will measure the current line to make sure but I think this will be the way to go. Clean up all that mess in back and should be a good solution for people who don't want to pay for NOS or parts warehouse place prices.
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1977 924 N/A Martini Edition

[jim kleyh]

Hi from the frozen north. Any chance for some pics showing the final layout? etc. JIM
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oldcarman-77 porsche 924 and one of the ugliest motorhomes on earth.

[agfisher]

Sure thing. I'll try to document the whole process. Not sure when I'll get started but hopefully soon!
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1977 924 N/A Martini Edition

[agfisher]

Sorry to resurrect such an old post but I finally have time to start working on this so I thought I would point you to where I'm documenting the process.

http://www.924board.org/viewtopic.php?p=383382#383382
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1977 924 N/A Martini Edition

[brian19600]

You could just purchase this:

http://griffiths.com/product/porsche-924-fuel-line-477209241/


That's what I plan on doing. I already bought 2 of the 20cc accumulators (nos) for around $70 each.
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78 924

[agfisher]

Where'd you get the accumulators?
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1977 924 N/A Martini Edition

[brian19600]

I got them off ebay. I've been watching it for a while and waiting for some to come up. Apparently they are used on mid-70's 911's too. The cheapest I see them right now is $108.00.
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78 924

[brian19600]

Summit racing has the bosch 0438170015 accumulator for $99.97 and there is free shipping over $99.


https://www.summitracing.com/parts/bch-0438170015
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78 924