I have a 93 F350 with the nonturboed 7.3, with 285,000 on the clock. Had a leak in one return line and took it in to be fixed and now all the lines are leaking on that side. This mechanic is usually very good so what gives? He said that one side had larger o rings on it than the other side. I have had this problem in the past and maybe the last time they had to put in larger o rings? Anyone had similar problems with is engine?
Leaking return lines
- Thread starter thunder
- Start date
highest_vision
Reqistered User
Take a look here and scroll down a bit (Return line refit). All the o rings are the same, you likely need to replace it all (normal procedure and about $20 to $40 depending on supplier).
Good Luck
James
Good Luck
James
JPR
Full Access Member
The o-rings don't seem stay resilient for very long. So if you bump one of the caps too hard or replace one of the fuel lines, it usually will result in a leak. And once you replace the o-rings on one cap, you have to replace all the orings on that side.
When you replace the o-rings, coat them with a little diesel fuel after they are installed and the caps will slide on a bit easier.
When you replace the o-rings, coat them with a little diesel fuel after they are installed and the caps will slide on a bit easier.
thunder-
do yourself a favor and go down to the TRUCK stealership and get the parts counter monkey to sell you the coplete Diapco return line kit. The part number is in the "parts bin" in the articles. If you get a blank stare for the counter monkey, leave immeadiately and order the kit from MWFI.
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Just to squelch the ensuing noise about "parts counter monkeys", I too worked the parts counter for years. Unlike the new crop working the counter, I spent years working the shelves learning about parts and interchanges. these kids they have these days only know how to ask for year and S/N. without a S/N these days, these kids are LOST.
do yourself a favor and go down to the TRUCK stealership and get the parts counter monkey to sell you the coplete Diapco return line kit. The part number is in the "parts bin" in the articles. If you get a blank stare for the counter monkey, leave immeadiately and order the kit from MWFI.
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Just to squelch the ensuing noise about "parts counter monkeys", I too worked the parts counter for years. Unlike the new crop working the counter, I spent years working the shelves learning about parts and interchanges. these kids they have these days only know how to ask for year and S/N. without a S/N these days, these kids are LOST.
6point9diesel
Paul
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That Diapco kit is the bomb. I've used and seen a few others, but this is by far the nicest.
Paul
Paul
ericboutin
Full Access Member
This is really not a bad job either, not hard or time consuming really. I did mine under the watchful eye of Argve (Travis) at the last IDI meet. It makes a big difference though especially if you got a couple leakers.
