[blops]

As I mentioned in another post, I am replacing the fuel tanks in my 93 f250, 7.3 non-turbo.

The real culprit was the rusted and cracked metal fuel line going from the rear tank to the tank selection unit.

I need to, at a minimum, replace the rusted out metal segment of fuel line between the rear tank and the tank selection unit. Another possibility would be replacing the combo of the flexible line/rigid metal line/quick connects to tank and tank selection unit.

I've been having a hard time tracking down a good answer on what to do as well as high-pressure 1/4" line.

Here's the setup on the piece of line I'm looking to replace:
Rear tank -> quick connect -> high pressure flex line -> rigid metal line -> high pressure flex line -> quick connect -> tank selection unit

The flex lines are not clamped to the rigid, it's a friction fit. Can I just slide the rigid metal out from the flex line and get a new rigid line in, then band clamp it in place, end of story?

If not, where can I get high pressure (nylon?) 1/4" line and can quick connects be installed to it without "the installation gun that's pretty expensive".

Thanks for helping sort out the mess!

 

[Snotzalot]

The lines from your tank are low pressure, i.e. suction, there is no need for high pressure lines. Get some steel bake line, rubber gas/diesel fuel hose and some clamps and have at it.

 

[blops]

At what point in the system does the line become high pressure? I've always heard diesel systems were high pressure.

 

[TWeatherford]

The most pressure fuel lines on our trucks will see is 4 or 5 psi. No need to have anything fancy. The injection pump puts the fuel under higher pressure on its way to the injector, but you aren't worried about that part.

 

[blops]

Sounds good.

I'll post up and let you know how it comes together. We're getting on putting it back together tomorrow.

 

[Shaft93]

I've migrated from the blops login to Shaft93...

We successfully got the fuel lines connected and mounted the new tanks. We had a false start by accidentally pinching the internal fill-tube for the rear tank, so when I went to fill it with diesel at the station, it immediately spurted back out of the truck and all over the ground.

After that was fixed, I noticed that as I got to the top of the tank (16+ gallons), the rear tank started to leak pretty rapidly. I haven't dropped the tank yet to investigate, but I'm nearly 100% sure it's the gasket around the sending unit that's not sealing. I've ordered a replacement gasket and lock ring and will drop the tank and replace it probably this weekend.

Once the tank drained below the gasket level, it stopped leaking. I only had to catch about 1/2 a gallon in the pan...

So, my question now is: How do you get an incredibly dirty Carhartt work jacket clean? It's got diesel, grease, general filth ground into every nook and cranny.

 

[Snotzalot]

Ammonia, added it to the wash.