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  #1  
Old 06-29-2006, 07:29 PM
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Question SVO fuel line: Has anyone tried 1/2" PEX?

Just wondering if anyone has tried using 1/2 inch PEX tubing for an SVO fuel line. The stuff tubing seems to be very flexible and strong.

Thanks for your advice.
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Old 06-29-2006, 07:53 PM
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Yes, although it can melt and leak in HIH applications.
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Old 07-06-2006, 05:35 PM
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Question PEX for SVO fuel line HOH

Was the PEX melting in contact with the engine, the heat of the coolant, or something else?

I am thinking of using 1/2 PEX as fuel line in HOH setup.

My idea is to have 1/2 pex for SVO and 1/2 Pex for the coolant

Any thoughts or ideas on this?
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Last edited by springsman; 07-06-2006 at 06:07 PM.
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Old 07-07-2006, 12:03 AM
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I believe it was in contact with coolant in a HIH setup. It will still become much more flexible when warmed and may kink.
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1982 300SD - 232K miles - Wife's Daily Driver

1986 560SL - Wife's red speed machine
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  #5  
Old 07-07-2006, 02:56 PM
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Question PEX question

Are you having any problems in your application with the PEX?
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  #6  
Old 07-07-2006, 03:38 PM
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HEre is a picture of my tank showing a 1/4" PEX as fuel hose in a 3/4" coolant hose.



This system has been working for 2 years without a problem and never experienced leaks or bending to the point of breaking the PEX.

It is connected to a 3/8" regular fuel hose as soon as it gets to the engine bay.

So I have been well served by the use of PEX and still consider using it in my second version of SVO system.

I must say though that thightennig of the PEX adapter is tricky because overthightenning can cut the PEX. So I suggest it is best you install it loose and run some hot fuel in the system and slowly tighten where leaks occur.

Bye,
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Old 07-08-2006, 02:18 AM
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Quote:
Originally Posted by springsman
Are you having any problems in your application with the PEX?
I used another controversial material....soft copper.
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