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Replacing 928 Fuel Lines - a guide

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Old 04-19-2015, 11:03 PM
  #46  
Carl Fausett
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Why not just take the old hoses to a professional hose repair company like Alliance or Cross and have them install new high pressure fuel line onto existing fittings? I just had the hose from the fender pump to the fuel accumulator rebuilt at Alliance and it cost me all of $14.
Yes! You may recall we used to rebuild fuel lines with new hose and swagged ends as a service several years ago. When my insurance agent heard I was offering this service, he went white... and that was the end of that.

Since then, I have been suggesting exactly what you have mentioned - take them to a professional shop and have new fuel line installed professionally. I did have a customer call me back and say he tried - but the tech refused the job saying he couldn't/wouldn't because they were furl lines. He said they could build him anything else - but not allowed to work on fuel lines.

Wonder if we have the same insurance agent... :-)
Old 04-19-2015, 11:13 PM
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James Bailey
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Right I bought a Porsche because their design and engineering is second to none. Got a 928 because it was the flagship , the best and most expensive normally aspirated Porsche of it's time. But when it comes to replacement parts I want the cheapest solution possible........no matter if it has been proven over time to be viable. If some generic hose and clamps are a good solution why on earth did Porsche use something ELSE ???? Guess they were just STUPID....now reread the first sentence
Old 04-19-2015, 11:29 PM
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Hmmm, Porsche engineering is very good for a company of their size (at the time) and given their performance mission but second to none?

I have replaced fuel lines with an auto parts store solution, cost was probably a factor but being able to just do the job without having to order parts or drop my fittings off and pick them up again was probably a bigger factor. I admit I never looked at prices or alternatives, I've replaced fuel lines before and power steering lines likewise and am not particularly concerned about my methodology.

I was just fooling with a 944S2 fuel rail and the stock jumper line is pretty disconcerting, on that one there are not even any ferrules fitted to the ends of the lines, and the lines spin on the barb fittings. The fuel line is marked 1989. I guess it did not leak! The barbs work well until the rubber/plastic fails.

-Joel.
Old 04-20-2015, 04:16 AM
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svpmx83
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interesting thread regarding Gates hose on barbed fittings.



http://ctflier.com/index.php?/topic/...roduce-debris/
Old 04-20-2015, 07:34 AM
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M. Requin
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Originally Posted by svpmx83
interesting thread regarding Gates hose on barbed fittings.



http://ctflier.com/index.php?/topic/...roduce-debris/
Thanks for this info.
Old 04-20-2015, 12:16 PM
  #51  
Carl Fausett
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Right I bought a Porsche because their design and engineering is second to none. Got a 928 because it was the flagship , the best and most expensive normally aspirated Porsche of it's time. But when it comes to replacement parts I want the cheapest solution possible........no matter if it has been proven over time to be viable. If some generic hose and clamps are a good solution why on earth did Porsche use something ELSE ???? Guess they were just STUPID....now reread the first sentence
No, Porsche is certainly not stupid. But some decisions are made because they are a manufacturer.

I can easily comprehend how a push-on solution without a clamp is faster during manufacturing than a hose + clamp + a human-must-tighten-it-solution. And it looks better too (important when selling cars)

Repairs are often just that - repairs - and our requirements are different.
Old 04-20-2015, 12:21 PM
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James Bailey
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Wow that link was to an Ultralight Forum .....they have to worry about more than just fire !! When the Rotax stops running they are coming down.
Old 04-20-2015, 12:26 PM
  #53  
Carl Fausett
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Good forum. Many different ways to effect this repair discussed. I like that as I believe there is always more than one way to do something.

So, gentle reader, select the solution from those offered here that best fits your economics and your desires.
Old 04-20-2015, 04:21 PM
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As already stated in a number of posts - EFI hose (be it Wurth, Contitech, Gates, CRP or other manufactures) should NEVER be used with barbed fittings. Gates in particular state it very clearly on their literature.
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Old 04-20-2015, 04:48 PM
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Originally Posted by James Bailey
Right I bought a Porsche because their design and engineering is second to none. Got a 928 because it was the flagship , the best and most expensive normally aspirated Porsche of it's time. But when it comes to replacement parts I want the cheapest solution possible........no matter if it has been proven over time to be viable. If some generic hose and clamps are a good solution why on earth did Porsche use something ELSE ???? Guess they were just STUPID....now reread the first sentence
Second to none? I love the cars, but they're a manufacturer just like the rest and sometimes the bean counters win. The hatch latching mechanism on my old 944 turbo and current 928 come to mind, or the hvac on my two 80s 911s, or the targa mechanism on my 993 targa....I could go on and on. I love the cars, but some of the designs are not the best.
Old 04-20-2015, 05:25 PM
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Originally Posted by cotton
Second to none? I love the cars, but they're a manufacturer just like the rest and sometimes the bean counters win. The hatch latching mechanism on my old 944 turbo and current 928 come to mind, or the hvac on my two 80s 911s, or the targa mechanism on my 993 targa....I could go on and on. I love the cars, but some of the designs are not the best.
So who would be better ?? Major portion of their business was design for many other auto makers...even did some Harley Davidson work. Given the costs of the real Porsche cars I doubt the accountants were running the show. Bunch of engineers building cars that they wished to own...
Old 04-20-2015, 05:29 PM
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Originally Posted by James Bailey
So who would be better ?? Major portion of their business was design for many other auto makers...even did some Harley Davidson work. Given the costs of the real Porsche cars I doubt the accountants were running the show. Bunch of engineers building cars that they wished to own...
So, just to be clear, you're saying the hatch latching mechanism, among other things, is the best in the business? Sometimes there is brand loyalty to a fault.
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Old 04-20-2015, 10:49 PM
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The overall level of design and engineering coupled with innovation and racing history is pretty hard to argue with...... sure one can nitpick this or that but it so far exceeds what any other automobile company has done in the last 50 years. That is my point. And I exclude 924-944s given how that design was originated as a VW parts bin exercise for VW and only at the last minute picked up and BADGED as a Porsche.
But now all just one big family under VW ownership and yes now the accountants are in charge
Old 04-20-2015, 11:02 PM
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But isn't that what this thread is about? One particular part on the 928? The fuel lines? No one is arguing the entire engineered genius of the porsche... Just maybe a few unintelligent designs. And as probably the newest member of this forum I'm kind of confused with this thread. Should we or should we not use Carl's hoses... Bottom line all BS aside- Will. It. Work?
Old 04-20-2015, 11:07 PM
  #60  
James Bailey
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I would not and did not use generic hose....but I have seen far too many burned 928s. Just my opinion.


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