Fuel Lines
05-07-2003, 11:33 PM
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Fuel Lines
Ok here is what I am looking at on my '87 944 NA.
Along the top of the engine you have the rail. Either end of the rail is a fuel pressure regulator. I guess one is the in and one is the return.
Well the line to the front most one is just the right length/really too tight, and the end is fraying so is leaking. Now I know that I could replace the fuel line all the way back to the fuel tank, but thats no small job.
Any ideas on extending it, or putting some sort of fuel pressure gauge in line with it to give me a little more length and a little more slack so when the engine vibrates it doesn't try and pull the scraggy end off.
Thanks
Martin
Along the top of the engine you have the rail. Either end of the rail is a fuel pressure regulator. I guess one is the in and one is the return.
Well the line to the front most one is just the right length/really too tight, and the end is fraying so is leaking. Now I know that I could replace the fuel line all the way back to the fuel tank, but thats no small job.
Any ideas on extending it, or putting some sort of fuel pressure gauge in line with it to give me a little more length and a little more slack so when the engine vibrates it doesn't try and pull the scraggy end off.
Thanks
Martin
05-08-2003, 03:02 AM
#3
You don't have to replace the entire fuel line to the tank, the two lines connect just inside the fender well. Look at this for more info. <a href="http://www.speedforceracing.com/fuellines.html" target="_blank">http://www.speedforceracing.com/fuellines.html</a>
Do a search of past post, lots of info on this subject. Replace them before you have an Engine fire.
Do a search of past post, lots of info on this subject. Replace them before you have an Engine fire.
05-08-2003, 09:45 AM
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Go with the fuel lines from Technodyne ... they are much better then the clamp on SFR type lines.
The Technodyne lines use AN fittings ... much better then clamps. I had the SFR lines on my race motor ... and after evry race I would have to tighten up the clamps .... dont really want to have to worry about losening clamps on the fuel line.
944turbo
The Technodyne lines use AN fittings ... much better then clamps. I had the SFR lines on my race motor ... and after evry race I would have to tighten up the clamps .... dont really want to have to worry about losening clamps on the fuel line.
944turbo
05-08-2003, 10:05 AM
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Thanks for the info guys, my mechanic was saying that he had spoken to the Porsche Parts department and they said they had update the fuel line from being 1 piece to 3 separate pieces. Anyone know of this change?
Any easy place to verify whether I have the 1 piece or 3 piece?
Thanks, I will do a search....
Any easy place to verify whether I have the 1 piece or 3 piece?
Thanks, I will do a search....
05-08-2003, 03:50 PM
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I say get the <a href="http://technodyneracing.com/technodyne1/parts.html#item1" target="_blank">technodyne SS lines</a> . $250 is cheap considering the consequences of a leaky line.
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Remember, only you can prevent engine wildfires.
The PO replaced rubber with rubber in mine, but when they show a hint of wear, they'll be gone.
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Remember, only you can prevent engine wildfires.
The PO replaced rubber with rubber in mine, but when they show a hint of wear, they'll be gone.
05-08-2003, 04:35 PM
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Martin,
It sounds like you are describing the old style fuel lines - a major source of failure in these cars that results in catastrophic engine fires. <a href="http://www.cantonia.com/944_safety_bulletins.html" target="_blank">This website</a> lists all the factory recalls for our cars from the 83 model to the 1995 968.
You will see that your 87 944 fuel lines were recalled in 1990. Your local Porsche dealer should be able to verify whether or not this was ever done by running you VIN. If it wasn't done, I beleive Porsche will still do it free of charge, although I might be wrong there.
One way or another, you definitely want to fix that ASAP, and carry a fire extinguisher in the car until you do, and afterwards as well - can never be too safe.
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It sounds like you are describing the old style fuel lines - a major source of failure in these cars that results in catastrophic engine fires. <a href="http://www.cantonia.com/944_safety_bulletins.html" target="_blank">This website</a> lists all the factory recalls for our cars from the 83 model to the 1995 968.
You will see that your 87 944 fuel lines were recalled in 1990. Your local Porsche dealer should be able to verify whether or not this was ever done by running you VIN. If it wasn't done, I beleive Porsche will still do it free of charge, although I might be wrong there.
One way or another, you definitely want to fix that ASAP, and carry a fire extinguisher in the car until you do, and afterwards as well - can never be too safe.
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05-08-2003, 05:23 PM
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Paul,
Any idea what parts the recall replaced?
It seems to have been done, by Dealer 1713 who are no longer listed as a trading dealership.
According to Holbert's Porsche, Porsche no longer cares about recalls over 10 years old, and may not even carry the parts.
Any idea what parts the recall replaced?
It seems to have been done, by Dealer 1713 who are no longer listed as a trading dealership.
According to Holbert's Porsche, Porsche no longer cares about recalls over 10 years old, and may not even carry the parts.
05-08-2003, 05:56 PM
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Martin,
The line in question is the shortest piece of line that runs from the FPR to the rail. While visually inspecting the unit, if you notice any signs of brittle material or any kind of weakness (which you must if you have leaks) - especially near the metal fittings, you definitely want to replace it ASAP.
If as you say your car has gone through the fix procedure, then other possible causes of loose or worn fuel lines could be failing motor mounts, which will cause serious vibrations at idle. It's possible that the fuel line is rubbing against the metal fittings and wearing through, causing your leak.
Upgrading to the Technodyne or the SFR units is definitely a good idea.
HTH
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The line in question is the shortest piece of line that runs from the FPR to the rail. While visually inspecting the unit, if you notice any signs of brittle material or any kind of weakness (which you must if you have leaks) - especially near the metal fittings, you definitely want to replace it ASAP.
If as you say your car has gone through the fix procedure, then other possible causes of loose or worn fuel lines could be failing motor mounts, which will cause serious vibrations at idle. It's possible that the fuel line is rubbing against the metal fittings and wearing through, causing your leak.
Upgrading to the Technodyne or the SFR units is definitely a good idea.
HTH
<img border="0" alt="[cheers]" title="" src="graemlins/beerchug.gif" />
