DaveC
Registered User
Hi all--
I have a '94 F350, 7.3L IDI, factory turbo, E40D. BTW, just got it; about totally free of rust; I love this truck! Since I replaced the glow plugs and rebuilt the fried glow plug wire harness, she starts and runs and drives beautifully, even when it's zero degrees. So far so good.
Anyway so now an injection line has I think cracked, right at the point inside the nut where it attaches to the injector. Fuel is welling up upwards from the gap between the steel line and the compression nut ID, so I don't think it's leaking from the return line caps; I think it's the steel line itself that must have cracked. BTW, previous owner didn't reinstall all of the vibration dampers, which seems also to suggest that the steel line may have cracked.
So this weekend, I'm about to take off my air intake, and hopefully replace all of the injector lines in one go. I guess I'm planning to do this without removing the injection pump, which taking that off looks kind of scary.
Anyway to my actual question: Are the compression (or flare) nuts on the injector lines, actually English or metric sizes? The only ones I can easily access at this point are those at the tops of the injectors. And these seem to be 5/8"; but maybe they're actually 16mm, which is very very close? So then the compression nuts on the back of the injection pump would be either some English or metric size, which I wouldn't be able to tell for sure, until I have everything all apart, with no truck to drive me to the store...
Also, from what I read, removing and replacing the injector lines shouldn't be impossible; before I start I'm going to make sure I have a good set of flare nut wrenches; maybe some kind of crow's feet too. However, any suggestions welcome.
Anyway thanks in advance for whatever clues!
--dave
I have a '94 F350, 7.3L IDI, factory turbo, E40D. BTW, just got it; about totally free of rust; I love this truck! Since I replaced the glow plugs and rebuilt the fried glow plug wire harness, she starts and runs and drives beautifully, even when it's zero degrees. So far so good.
Anyway so now an injection line has I think cracked, right at the point inside the nut where it attaches to the injector. Fuel is welling up upwards from the gap between the steel line and the compression nut ID, so I don't think it's leaking from the return line caps; I think it's the steel line itself that must have cracked. BTW, previous owner didn't reinstall all of the vibration dampers, which seems also to suggest that the steel line may have cracked.
So this weekend, I'm about to take off my air intake, and hopefully replace all of the injector lines in one go. I guess I'm planning to do this without removing the injection pump, which taking that off looks kind of scary.
Anyway to my actual question: Are the compression (or flare) nuts on the injector lines, actually English or metric sizes? The only ones I can easily access at this point are those at the tops of the injectors. And these seem to be 5/8"; but maybe they're actually 16mm, which is very very close? So then the compression nuts on the back of the injection pump would be either some English or metric size, which I wouldn't be able to tell for sure, until I have everything all apart, with no truck to drive me to the store...
Also, from what I read, removing and replacing the injector lines shouldn't be impossible; before I start I'm going to make sure I have a good set of flare nut wrenches; maybe some kind of crow's feet too. However, any suggestions welcome.
Anyway thanks in advance for whatever clues!
--dave