hey guys new here, have had the truck for a while, been messing with the pump, just a few questions, when i down the star wheel, cw more fuel, u always have to adjust your smoke screw setting correct? to clear up low end?, also with doing this everytime you adjust your star wheel down (cw) u are goin to have less spring tension there for you need more boost to push fuel pin down? what im tryin to get to is by doing all of this, do you loose power @ wot at top end? seem to not have that much power up there. and also truck is all stock accept denny t 2 fuel pin cold air, an straight pipe. any clarification would be awsome goin to do some more tuning today want to find the sweet spot .

 

really no one knows? anyone have any tuning tips? for best performance with stock parts? right now truck burns everything accept on the initial mash on the pedal.

 

I have my smoke screw backed all the way out as high as it will go. The higher the starwheel (ccw) the longer it takes to get full fuel. If you have the starwheel cw all the way down it will fuel right away. I would back the smoke screw all the way out and back off the starwheel a bit at a time until you get what you want. All trucks are different.

 

okay sounds bout right, should be pretty good where i have it, is it bad to bottom them out ? thought i read some where that it can wear the pump out ?just finished doin a topset (valve adjustment) wow so much smoother an quietend it up a bit aswell. thanks man cheer

 

I wouldn't recommend bottoming it out. Makes it spool slower and just dumps fuel into it. I'm just in the process of getting my pyrometer fixed and i'll be turning the full power screw in a turn or so, and probably have the star wheel as high as it will go after that.

That reminds me I'm probably due for a valve adjustment as well!

 

yeah valve are a must, power screw is turned up in mine, i had more of an issue to get idle down sure it could go up some more but duno bout adjustin it down more?, prob could turn down star wheel some more just have to take out smoke screw an make sure its flush with bottom of pump top.

 

exactly how do you do the valve job on the cummins........... i know that mine needs it done, but i dont know exactly how to go about doing it? is there a website or forum post that does a walk through?

 

yeah man just go here B Series Valve Adjustment
tells u everything took me bout an hour-ish to do an i painted my valve covers

 

thanks!!!!!!!!!! this will help a lot!!!!!!!