Tips for IP Adjustment
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Cargo Master
Joined: Dec 2011
Posts: 2,750
Likes: 4
From: Pecatonica, IL
Tips for IP Adjustment
Hello again everyone!
I have been having fun going through this 84 6.9 and trying to get it to where I can tow my camper (22ft 2006 Mallard) with it. I have a ways to go, including installing a brake controller, removing the DMI bumper, and installing a stock bumper and receiver hitch. Also the 7 pin plug.
One of the first things I noticed on the test drive was the black smoke under load. Its not a haze, but its pretty thick. I was not getting after it real hard, just what I would call normal acceleration (no WOT accelerations) to get up to highway speed. I know I need to address this before I tow, and don't feel like springing for a pyro at this time.
My question is, what is the best way to get back to base line or a little above if you do not know how much a previous person turned it up in the first place? I guess if I have to go flat by flat I can do that, just wondering if there was a better way.
I had an IDI a couple of years ago but never touched the pump so I am a little nervous about adjusting it. This truck also has an electric fuel pump installed on the frame rail, so I assume the lift pump on the motor has been bypassed. Weather this has any bearing or not, I am not sure.
Once again I would appreciate any insight and knowledge you guys could offer. Thank you!
I have been having fun going through this 84 6.9 and trying to get it to where I can tow my camper (22ft 2006 Mallard) with it. I have a ways to go, including installing a brake controller, removing the DMI bumper, and installing a stock bumper and receiver hitch. Also the 7 pin plug.
One of the first things I noticed on the test drive was the black smoke under load. Its not a haze, but its pretty thick. I was not getting after it real hard, just what I would call normal acceleration (no WOT accelerations) to get up to highway speed. I know I need to address this before I tow, and don't feel like springing for a pyro at this time.
My question is, what is the best way to get back to base line or a little above if you do not know how much a previous person turned it up in the first place? I guess if I have to go flat by flat I can do that, just wondering if there was a better way.
I had an IDI a couple of years ago but never touched the pump so I am a little nervous about adjusting it. This truck also has an electric fuel pump installed on the frame rail, so I assume the lift pump on the motor has been bypassed. Weather this has any bearing or not, I am not sure.
Once again I would appreciate any insight and knowledge you guys could offer. Thank you!
Thread Starter
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Cargo Master
Joined: Dec 2011
Posts: 2,750
Likes: 4
From: Pecatonica, IL
Thanks, thats kinda what I figured, just gonna have to tinker with it, I'm more concerned about starving it out. Just gonna go one flat at a time I guess.
Senior User
Joined: Feb 2011
Posts: 336
Likes: 0
From: Roslyn, Wa.
One flat at a time is probably the way to go. You would be surprised the difference one flat makes. Mine was the opposite. Couldn't even get a haze out of it at WOT, probably because I added 3 inch exhaust and a straight through muffler and opened up the intake a bit by cutting out the soup bowl. I increased the fuel by one flat and now I get a nice light haze when I'm pulling hills and a little more power.
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