Wrenchmonkey316
Registered User
I took pictures of the old 7.3 idi injectors. I’m hoping to get some information based on the appearance of these injectors. All input is appreciated. Thank you.
A have a few ugly injectors. Need help diagnosing appearance/causes.
- Thread starter Wrenchmonkey316
- Start date
Wrenchmonkey316
Registered User
I was a little worried about the wet/crusty/rusty colored looking one from the back drivers side cylinder? I installed new ones. My return lines got to leaking so I did the unknown age injectors as well.
Last edited:
Wrenchmonkey316
Registered User
Half were wet, half were dry.
Wrenchmonkey316
Registered User
Whew!’! I’m glad I got that right..Those look like injectors…
It’s been blowing out blue smoke on the beginning of fast takeoffs. It’s burning oil, a few quarts per 500 miles I’d guess. The truck has low 123k miles but no idea what happened to it during that time.
That’s a lot of oil… shouldn’t be that much… I’d warrant that your piston rings aren’t just super…
IDIBRONCO
IDIBRONCO
I'm guessing that this is the one in the close up. It looks like it might have unscrewed a little bit to me. There looks like there fuel between the two parts of the injector body. Other than that, nothing looks completely awful to me. I don't know what causes the rust, but I've seen it before.
Brian VT
Full Access Member
I got a new set from Russ last year and they turned to rust within a month or so. It's really a bummer to look at them. They work fine but they look like hell.
Wrenchmonkey316
Registered User
So, anybody have anymore input? Can rust on injectors suggest a head gasket issue? Teach me the ways, I soak up new information like a rock!
Wrenchmonkey316
Registered User
Yeah, that’s concerning. If I keep the engine well oiled will it likely be ok for a year or more until I can swap it out.
UUUMMMM those look really good. the rust is from moisture coming from the top.
Did you never seez the new ones upon install?
I recommend Painting them, they wont rust on top.
Did you never seez the new ones upon install?
I recommend Painting them, they wont rust on top.
Doesnt everything in Maine rust into dust?
Wrenchmonkey316
Registered User
Yes I used the the seezy on the threads. I was referring to one that has it on the lower part of the injector. It’s a closeup pic.
Wrenchmonkey316
Registered User
Yes I used the the seezy on the threads. I was referring to one that has it on the lower part of the injector. It’s a closeup pic
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