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Plastic vs Rubber fuel lines

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Old Sep 4, 2006 | 01:42 PM
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2jhanna
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Plastic vs Rubber fuel lines

`90, F450, 5 speed man trans, dual fuel tanks.

Is there any reason that the plastic fuel lines between the rear tank and selector valve assy can't be replaced with standard rubber fuel line hose?

Thanks,
Hanna
 
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Old Sep 4, 2006 | 10:24 PM
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None as long as they are fuel resistant lines.
They should also be a fuel line with woven fabric inside the line so it does not easily collapse under a slight vacuum.
 
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Old Sep 5, 2006 | 06:52 AM
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With these lines not being under hi pressure, (no pump in the tank), I was hoping to be able to use standard fuel line hose, with the nylon threads inside and standard hose clamps.

Anyone else have any input ??

Hanna
`90, F450, 7.3l, 5 speed, (factory 2wd, converted to 4wd), brush truck.
 
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Old Sep 5, 2006 | 08:28 AM
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It will work wonderfully.
I have some on mine where I removed the water seperator and rerouted the fuel lines.

I had to say the part about the woven fabric in my post, I have seen people try to use vacuum line because it is cheaper. Vacuum line does not work very long.
 
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Old Sep 5, 2006 | 09:28 AM
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i just did the same thing to my truck that had leaky fuel lines. i took off all them stupid quick connect things and then just took the fuel line and put it right on to the end of the sending units and selector valve.i dont know if you know this but you need two different sizes 3/8 and 5/16. also get the right size hose clamps so that the seal all the way around
 
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