Reply
 
Thread Tools Display Modes
 
Old 09-13-2014, 11:23 AM   #1
Bus Nut
 
sojourner's Avatar
 
Join Date: Aug 2013
Posts: 452
Year: 1995
Engine: DT408
PEX as fuel line?

Just wondering if anyone has used PEX as fuel delivery lines on your skoolie. I'm converting the single 65 gallon tank to dual 80's and am redoing the entire fuel delivery system to include manual delivery and return line valves as well as a fuel/water separator. I'm thinking PEX would do the job nicely but can't seem to fine any comparability to diesel fuel listed anywhere. Seems odd as it appears to be made from the same material as fuel tanks.
__________________
I am an sojourner in the earth; hide not Your Commandments from me. Psalm 119:19

Here is the patience of the saints; here are the ones keeping the commandments of YAHWEH, and the faith of Yahshua. Rev. 14:12
sojourner is offline   Reply With Quote
Old 09-13-2014, 12:08 PM   #2
Bus Crazy
 
opus's Avatar
 
Join Date: May 2010
Location: Montana
Posts: 1,615
Year: 1995
Coachwork: Blue Bird
Chassis: All-American R/E
Engine: 8.3 Cummins
Rated Cap: 72
Re: PEX as fuel line?

From what I have read it gets a thumbs up.
opus is offline   Reply With Quote
Old 09-13-2014, 01:55 PM   #3
Bus Crazy
 
sdwarf36's Avatar
 
Join Date: Oct 2009
Location: Moodus, Ct.
Posts: 1,054
Year: 1996
Coachwork: Champion
Chassis: Ford e-450
Engine: 7.3 Powerstroke
Rated Cap: 14
Re: PEX as fuel line?

I have it as a the pick up in my veggie tank. No problems.
__________________
Don't make a fuss-just get on the bus!

my bus build http://www.skoolie.net/gallery/Skoolies/Sped
sdwarf36 is offline   Reply With Quote
Old 09-13-2014, 04:23 PM   #4
Bus Nut
 
frank-id's Avatar
 
Join Date: Nov 2003
Location: Twin Falls, Idaho
Posts: 808
Nylon is the best

Pex and nylon do not do well with any heat. These products must be mounted away from heat. I use mostly nylon but the last few feet near the engine is copper with a 3/8 fuel hose as a coupler. These products do not do well with any rubbing or abrasion. Frank
frank-id is offline   Reply With Quote
Old 09-14-2014, 11:11 AM   #5
Bus Nut
 
sojourner's Avatar
 
Join Date: Aug 2013
Posts: 452
Year: 1995
Engine: DT408
Re: PEX as fuel line?

Thanks for the replies everyone. Heat is not going to be much of an issue as the fuel lines on the original tank are nylon type as well and held up just fine for 18 years. I'm remote locating a fuel water separator in the compartment just below the drivers window where there used to be flasher wiring and such (been removed). The bends will be large radius, out of the sunlight and away from any extreme heat. Using something like PEX over standard rubber fuel hose will allow me to go with a larger I.D. and less fuel restrictions in the lines themselves. I always oversized fuel lines in the boats I built for customers in the past and it has always been a good idea.
__________________
I am an sojourner in the earth; hide not Your Commandments from me. Psalm 119:19

Here is the patience of the saints; here are the ones keeping the commandments of YAHWEH, and the faith of Yahshua. Rev. 14:12
sojourner is offline   Reply With Quote
Old 09-18-2014, 01:05 PM   #6
Site Team
 
Join Date: Jul 2014
Posts: 694
Year: 1998
Coachwork: Bluebird
Chassis: TC2000 RE
Engine: 8.3l Cummins
Rated Cap: 78
Re: PEX as fuel line?

I think it would work, but I would stick with something that has an SAE certification printed on it, if anything from an insurance standpoint.

http://www.dormanproducts.com/c-386-fue ... ?pagenum=7
aaronsb is offline   Reply With Quote
Old 09-28-2014, 04:02 AM   #7
Almost There
 
Join Date: Sep 2014
Posts: 87
Year: 97
Coachwork: Me!
Chassis: BB
Engine: 5.9 Cummins
Rated Cap: 44
Re: PEX as fuel line?

How do you connect the PEX tubing to the fuel hat or pickup or similar? Unless you are spec'ing the ENTIRE system to the ID of the PEX I see no value in running larger fuel lines except being able to go 25' farther when running completely out of fuel. If you connect 1/2" ID pex to a 3/8 id metal pickup or fuel hat you still have restriction. The only way I see to get aound that is to plumb in a fuel system in AN lines. I just did that on my 700 hp mustang, -10 supply -8 return PTFE hose and just the lines and fittings were in the $400 range.

If it were me I'd use good old rated rubber line in conjunction with some steel or ally hard lines. Unless you are needing the flow for a 500+ bi or tri turbo beast whats the point in risking untested lines? And if your bus is that bad then surely you have the $$ for the AN stuff (and I want pics! LOL)!
Ponyracer is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
1995 DT466 Fuel line gildorr Mechanical and Drivetrains 5 06-30-2014 11:09 AM
Fuel Line Question White99z Mechanical and Drivetrains 0 05-15-2014 11:16 AM
Fuel Return Line/Tube, 1995 Ford B800 5.9L Cummins JankyBarge Mechanical and Drivetrains 5 08-14-2013 08:05 PM
Veggie Fuel Line IDeas? SoulFire Veggie Oil | WVO | Biodiesel | SVO 3 04-28-2009 09:23 AM
Generator Fuel Line Steve Conversion General Discussions 6 01-17-2004 08:43 AM

» Virginia Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 09:26 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2017, vBulletin Solutions, Inc.