Fuel line repair

[eagle19952]

perhaps...
Eaton High-Flex 4297 Series
Synflex® Diesel Fuel Tubing Construction
High-Flex 4297 Series - Synflex composite fuel tubing
is a flexible, thermoplastic elastomer product with a
nylon line core tube. It is a non-reinforced, seamless
tube, designed and tested for use with barbed fittings
and rated for use with diesel fuel in a temperature
range of -50°F (-45°C) to + 250°F (122°C).


Meets SAE J844, J1131, J1394
Meets ASTM D471, D624, D638, D648, D709, D746, D742, D2240
Transportation — trucks, busses and off-highway vehicles
Construction machinery and equipment
Agriculture machinery and equipment
Marine, boats and yachts
Diesel engines and parts
Multiple colors
Formed or unformed harnesses
Designed SPECIFICALLY for diesel fuel applications
Pre-cut with or without barbed fitting
Lightweight fuel tube assemblies can weigh up to 66% less

hope this helps

[RnMAdventures]

Thanks to all you guys that contributed to this thread. I didn't respond to all, but I was in a nine line bind for a couple of days. I did read the thread and really appreciated everyone's input.

The conclusion to the Fuel line leak: I replaced both the suction and return line with Aeroquip FC332 AQP. I purchased 65 feet of hose (had 5 feet left over)and slip on barbed fittings. One continuous hose both ways. I used heater hose to protect it when going through the bay walls and around troubles areas. I used that particular fuel hose and fittings based on what the Diesel Specialist representative that sold me the hose.  He told me they use it on everything. He could have easily sold me $7 a foot hose, but the 332 was $2.53 a ft. Since everything outside of the injectors is low pressure, I feel fine with the slip on fittings.

This event taught me a lot. I had a bigger problem than I realized. It started when I noticed a small drip under the engine. When I saw where it was coming from I looked at it and only lightly touched it. The next morning when I put it up on the ramps it blew a few gallons of diesel on the ground. The copper line had blown apart. Most of the time when I make a repair on something, I try to go back to OEM as much as possible. I had it in my head that I needed to replace the fuel line in kind and follow the same pattern/materials. Well, I soon realized that wasn't possible.  I ran the suction line and hooked it up. Took my time and was feeling pretty good about the repair. Started the bus and it ran... spit sputtered.... and died. It made no sense at the time. There were two leaks; one on the suction and one on the return line. I had the return ran correctly, but the other leak sucked air into the system. I took the other length of hose and just ran it externally. Used a little hand pump to reprime and it worked. I spent the next four hours running the second line.

There was also an air leak that developed while I was fixing the fuel line. The copper air line to the old AC solenoid was about to break off. After spending much time underneath my bus the last few days...  I see other projects in the future.

Thanks again...