pump adjustment
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Freshman User
Joined: May 2009
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pump adjustment
hey guys i got a 86 6.9. on the injection pump how do you adjust the vacum thing that is on the pump with 2 hoses on it. i noticed mine was missing a screw, so being a dummy i moved it a little before i put another screw in place, now the truck seems to shift alot sooner unless im really on the gas. 1st to second is almost instantly, 2nd to 3rd 20ish mph. i did try to put it back but just cant get it right went from shiftin to soon to revin more in gear and down shifting with a little pressure on the pedal.
plus righ below the vaccum thing is a lever with a allen head screw in it. i noticed when the trottle is opened the whole way the lever doesnt push the "button" in the whole way. but i can push the lever farther to push the "button" in. should i adjust the screw in farther? what is that lever for?
thanx for any help
plus righ below the vaccum thing is a lever with a allen head screw in it. i noticed when the trottle is opened the whole way the lever doesnt push the "button" in the whole way. but i can push the lever farther to push the "button" in. should i adjust the screw in farther? what is that lever for?
thanx for any help
Elder User
Joined: Mar 2010
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I like it when they shift early
but if you don't you just gonna have to shift that thing a lil at a time till you get it how you like it, myself I'd roll it all the way to the shifts too soon side and use the shifter on the colum if I wanted to be in second
but if you don't you just gonna have to shift that thing a lil at a time till you get it how you like it, myself I'd roll it all the way to the shifts too soon side and use the shifter on the colum if I wanted to be in second
Post Fiend
Joined: Jan 2005
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Post Fiend
Joined: Jan 2005
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Freshman User
Joined: May 2009
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no, the lever is on the pump, below the vacum thing. its flat looking and has a screw on the bottom that hits a "button" that is on the side/bottom of the pump.
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Post Fiend
Joined: Nov 2003
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From: Nutter Fort, WV
The lever adjusts the injection timing according to throttle application.
So to do it right, the IP has to be on a pump bench when it is set.
A pump bench is also known as an expensive tool.
The pump bench cost is part of the reason injection shops charge so much for IP work.
So to do it right, the IP has to be on a pump bench when it is set.
A pump bench is also known as an expensive tool.
The pump bench cost is part of the reason injection shops charge so much for IP work.
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