Plastic fuel line

[borky51]

Can I replace the plastic fuel lines with compression fittings coming from the fuel filter hosing with a rubber fuel line? and what different type of fittings would I have to use or should I stay with the plastic lines. The line I have on the M-35 are cracked Thanks

 

[Coffey1]

Stay with the plastic much easier to find and repair on road trip.

 

[borky51]

Thanks I was hoping that was the case, I really didn't know were I could find the fittings

 

[doghead]

A bit of searching the site should come up wit hundreds of threads on this.

DOT air line works fine.

Standard fitting work also. The correct ones are also available.

Use inserts.

 

[doghead]

Try a search for, "1/4 dot fuel insert" keywords.

 

[SSG Gibb]

I have had similar issues with my truck on the return lines, I used AOAP hose to replace the clear plastic and it works well. After a while I decided to fix it forever so I started replacing All the plastic lines with Copper. it looks Great. If you decide you want to go with the plastic I have plenty of NOS fittings and AOAP hose. "PM if interested" if you'd like to go with Copper I'd be glad to give you a few tip.

 

[borky51]

I wouldn't mind staying with the plastic lines I could really use the fittings/ compression rings along with the hose. I'm having trouble finding the hose and the fittings. thanks that would be great I can be reached on my cell 262-347-8711 ask for Bob

 

[doghead]

Did you search the key words I posted, and read a few of the threads?

Some guys have posted the grainger part numbers and MSC part numbers for the fittings.

Your local plumbing dept has them.

DOT air line at ant big truck shop or NAPA.

 

[Coffey1]

Yup I got everything I needed at Lowes or home depot

 

[m16ty]

Be careful with the hardware store stuff. I had to make a emergency repair with some tubing from Lowes. By the time I got home the fuel had already turned the tubing soft. I don't think it's rated for petroleum products. Make sure the tubing is DOT rated.

Just go to NAPA or your other favorite truck parts store and ask for DOT air line tubing. They will set you up with what you need.

 

[Coffey1]

I had absolutely no issues with the lines I got there.
I did learn that they do perform better with the inserts than without.

 

[Coffey1]

Come to think about it ! If you are using gas the tubing might not hold up..
I was running straight diesel.
The gas could melt the plastic.

 

[doghead]

In an emergency(roadside) I replaced a bad line with some poly tube from lowes. It barely made it home. It is NOT rated for fuel or the temps of the fuel or underhood heat.

The dot line works perfectly as it is nylon.

 

[M35A2-AZ]

Polyurethane is what you want to use, it is good for fuels and oils.

 

[rosco]

fuel line

The DOT tubing is bullet proof, and its ubiquitous, @ truck stores & NAPA. Having Bubba use substitute hardware store stuff with non rated hose/vibration & hot engine temperatures/leaking fuel line -- well that's the makings of another Hollywood sidebar of burning a truck to the ground.

 

[juanprado]

I would need to caution from my parts selling days that "most" dot stamped "air brake " line tubing is NOT fuel rated. Fuel rated tubing carries different markings. Check the specs of your tubing manufacture web site/catalog to be safe and compliant.

Will it work- Yes, will it possibly cause trouble with an inspection? ymmv

 

[doghead]

Polyurethane is what you want to use, it is good for fuels and oils.

No, that is not what you want to use.

You want to use airbrake line.

 

[rustystud]

International Harvester Company (IHC) was using DOT air-line for it's fuel lines since the mid 1970's . That's gas and diesel fuel.

 

[borky51]

Thanks everyone for that responded about the fuel lines a lot of good ideas, I decided to go with Hyd. hose and replace all the fittings. I found everything that I needed Good material for $40.00 this includes all the injector line. Thanks for all your help you guys are great.