Fuel injection line replacement?

[Old Goat]

When ever you see these trucks in the Yards, grab the IP`s with the fuel lines, PNP refers to this as a Spider and sells it for around $50. Cheaper this way than buying just the hard lines, which they charge seperately.

Not nickels difference between the lines 83 - 94 except for the 7.3 IDI that has the adapter for the front left one, and that hard line is a bit shorter w/o the adapter.

Check your junk yards in your area to see what they have. Maybe everything is rusted out and nothing any good, IDK.

Maybe use a dab of Anti-Seiz on the Injector threads and you won`t have the problem next time.


Goat

 

[Brian VT]

Anti-seize is always a good idea. But this didn't seize at the threads. It seized where the nut contacts the fuel line. So now turning the nut twists the fuel line with it.

 

[Brian VT]

Anti-seize is always a good idea. But this didn't seize at the threads. It seized where the nut contacts the fuel line. So now turning the nut twists the fuel line with it.

I was wrong. You were right. I hadn't realized that I was actually unscrewing the injector by turning the fuel line nut (and twisting the fuel line at the same time). I held the injector and then broke the nut free and replaced the last injector.
Now to deal with the twisted fuel line. It still lines up well. I just don't know if I cracked it or reduced the inside diameter. I'll give it a try.

As a side note...that twisted line, when I got it off the injector, was flopping around loose.
I realized the nut holding it to the pump was very loose. I could spin it with my fingers. So I had to remove the 2 lines above it to get a wrench in there. While loosening the others I noticed they weren't very tight. I'd say finger tight + maybe 1/8 of a turn (if that). Is it best to not tighten those very much?

I'm starting to think I should have just removed the whole spider for this job, as some recommend.

 

[Brian VT]

Well it's running. And that twisted line doesn't appear to be leaking.
I have a couple others leaking at the top of the injector and one at the base of an injector.
Had no leaks before I started messing with it.
Will mess with it when it cools down (tomorrow). Hopefully they just need to be tightened.

 

[Nero]

Glad the line is not leaking. As for the fuel leak, it could be the o rings from the fuel return caps, they sometimes don't like to cooperate.

 

[Brian VT]

Glad the line is not leaking. As for the fuel leak, it could be the o rings from the fuel return caps, they sometimes don't like to cooperate.

So I should order more new ones?
I guess trying some of the old (not very old and weren't leaking) ones wouldn't be worth the effort?

 

[Nero]

I would never reuse an o ring there, especially with how you have to move the line out of the way. New o rings always, not even some that have been 'sitting around for a while' they can start to dry out just from sitting in a hot garage.