I recently adjusted the fuel screw on my 92, and I'm having an issue with the idle speed. I turned the fuel screw in one turn, found the idle speed to be too high. So I backed out the idle screw, but I couldn't get the idle back down to normal. I ended up backing the fuel screw out to the stock position(back out 1 turn) and the idle is back to normal. However, when I rev the engine up to higher rpms and immediately let off the throttle, the rpm's drop down very low(almost kills the engine), and then the engine comes back up to idle speed. Has anyone else experienced this problem after tampering with their injection pump? If so, does any have any suggestions on how to fix this problem, or has anyone been successul in doing so?

Thanks,

Dawson

 

check the sticky i think it show a tool to make its a 3" 13mm bolt and cut a 10mm box end off a cheap wrench and weld it to the threaded end and that is the tool

 

A few pointers:

Was the throttle lever touching the idle screw? Often the trans linkage or the bellcrank keeps the throttle lever from contacting the idle screw. The linkage will have to be adjusted to compensate if this is your problem.

It sounds like the throttle lever is not clocked correctly, that's the usual cause of a droop and recovery. Have you had the throttle arm off for any reason?

 

Check the info here.
http://www.dodgeram.org/tech/dsl/mor...r/Power_ve.htm

Standing on a box at the front of the truck, looking down on the idle adjustment screw & locknut..I loosened the idle speed screw locknut with a punch and small hammer by tapping the right side of the locknut flats. After setting the idle speed, I tightened the locknut by punching the left side of the locknut

 

The throttle lever is touching the idle screw, and I have the throttle linkage adjusted to the correct length with no gap in throttle pedal response. I did take the throttle arm off to gain better access for turning the fuel screw. What exactly do you mean by the throttle lever being clocked correctly?

Thanks,

Dawson

 

Sounds like you are off a spline on the throttle lever. If you don't get it right you have to chase the screws all over creation to try to get the truck to run right.

 

Are you referring to the length of the throttle rod? I'm not sure what splines you are referring to on the throttle lever. I'm going to take a look at it today because it's starting to bug me.

Thanks,

Dawson

 

No, I'm talking about the lever on the pump. If you haven't taken it off then it should be fine, but when guys swap governor springs it's very common to wind up one tooth off on the throttle shaft.

 

Okay, that makes more sense. I didn't mess with the lever on the pump at all, and I still have the original spring. I did try turning the idle speed back up a little bit to see if that might fix my drooping problem, but I did not fix it. There is a good diesel mechanic close to where I live, and I plan on taking my truck to him so he can straighten it out. Also, does swaping to this other governor spring make much of a difference?

Thanks,

Dawson

 

3200 governor spring IMHO is the BEST mod for the VE pump.


JMHO though.

 

Thanks, but what is the IMHO/JMHO? How much do those springs cost?

Dawson

 

In My Humble Opinion, and Just My Humble Opinion

 

$12 - $15 at your local Bosch pump shop.

 

TJE, I don't know many of those online phrase abbreviations so I just had to ask. I'll check into getting one of those springs.

Thanks,

Dawson