Injectors Question
Posting Guru
Joined: Apr 2008
Posts: 1,614
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wait! what line did you change? did you change the injector hard line? if so did you use a 7.3 line? cause the 7.3 lines are longer than the 6.9 lines and that will change your timing on that one cylinder, you can swap lines betweeen both engines, but you have to swap all of the lines not one
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Posting Guru
Joined: Dec 2008
Posts: 2,347
Likes: 1
From: Maysville, Kentucky
I'll check tomorrow. I changed the orings today. No help. Im gonna inspect all my fittings tomorrow in the fuel system tomorrow. It runs great on bottom end. Just as not much top end power as it had when i first replaced it all.
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Posting Guru
Joined: Dec 2008
Posts: 2,347
Likes: 1
From: Maysville, Kentucky
well i have a shot 5069 pump thats set outside for about 2 months because papaw thought it was trash. So its now nice and rusty. But i might see if i can get it rebuilt bigger. I couldnt see the numbers because of it being dark on the truck
Posting Guru
Joined: Apr 2008
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its not a bad job, just pull the ip, i pull the ip now to do glow plugs cause it makes it so easy, and dont take me no time to pull an ip, i could have sold you some lines a while back for a dang good price, but another member on here is supose to be sending a money order for them
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Posting Guru
Joined: Dec 2008
Posts: 2,347
Likes: 1
From: Maysville, Kentucky
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Post Fiend
Joined: Nov 2003
Posts: 21,285
Likes: 16
From: Nutter Fort, WV
Head design changes -
6.9 features "centered" glow plugs, while 7.3 are "off-center"
Injection nozzles have been retracted on the 7.3 .060" to facilitate Federal and state emission certs.
6.9 #1 cylinder line did not have the pulse adapter where the 7.3 line does, so it is the biggest difference in length, longer by the size of the pulse adapter.
If you happened to get an 7.3 E series line #4 is where the pulse adapter is on them for the 7.3 engine, so that line would be shorter than the one on the F series engine.
.060" is not very much and unless the line you replaced was on #1 or #4 I don't think that is your problem.
6.9 features "centered" glow plugs, while 7.3 are "off-center"
Injection nozzles have been retracted on the 7.3 .060" to facilitate Federal and state emission certs.
6.9 #1 cylinder line did not have the pulse adapter where the 7.3 line does, so it is the biggest difference in length, longer by the size of the pulse adapter.
If you happened to get an 7.3 E series line #4 is where the pulse adapter is on them for the 7.3 engine, so that line would be shorter than the one on the F series engine.
.060" is not very much and unless the line you replaced was on #1 or #4 I don't think that is your problem.
Post Fiend
Joined: Nov 2003
Posts: 21,285
Likes: 16
From: Nutter Fort, WV
That would be cylinder #4.
There is also a possibility that someone installed an E series line without the pulse adapter on there before if you were not the original owner.
Every time I have changed injection lines, they are close, but not a drop on exact fit.
The all need a little tweaking before they fit just right.
Even if you have them perfect, change the IP timing 3/16", then unbolt the injection lines and see how wrong they fit.
There is also a possibility that someone installed an E series line without the pulse adapter on there before if you were not the original owner.
Every time I have changed injection lines, they are close, but not a drop on exact fit.
The all need a little tweaking before they fit just right.
Even if you have them perfect, change the IP timing 3/16", then unbolt the injection lines and see how wrong they fit.
