i got a 92 dodge d250 cummins atomatic for my birthday not to long ago for my first truck "only 15" and i really need some help with the power screw or full feul screw. I already learned how to rotate the fuel pin, turn down the star wheel and turn down the smoke screw, But it was just not enough power for me. All i want to do is turn it down till it hits the collar. "Do not want to deal with runnaway" The problem is the websites are really confusing me "remember just 15 years old" ,and for the life of me, i can not fit a wrench down there to tighten up the nut?? and all the websites tell you how to take it completely off by "using a 13mm wrench and a screw driver" but they never tell you how to tighten it? so i was just wondering if any one could help me out by telling me the tools you need to tighten it till it hits the collar, how you do it, and if i need to take the pump top of the injection pump?

Any suggestions are certainly welcome!

 

You have any gauges on that truck yet? If not you need to get some pyro at least. Before you going turning on anything on the pump. Don't take this the wrong way but if you can't figure out how to tighten the fuel screw. You probably wont not be able to adjust the idle screw either. Thats the fun one to adjust. and if you turn in the fuel screw you will have to back out the idle screw because it will bring the idle up as you turn the fuel screw in. Try to see if there is anyone in your area that would help you with it.

 

Patience's is the key it is worth it. Gauges are a must though you can hit 1500 degrees easy if your not carefull. The wrench will fit just take your time.

 

yeah i got it last night, only turned it till it hit the collar so about 3/4 of a turn. and yes i have rpm, pyro, boost and back pressure gauges "exhaust break". If i only turned it 3/4 of a turn, you think ill still have to bump down the idle?

 

Should idle at about 750 auto trans

 

just took it for a 30 min drive, big difference in power!! your dead on with the idle!! thanks so much everyone!!!

 

turn it in two good turns! make sure u gotta straight pipe and a good air air intake will help the turbo gettin air. on my buddies 91 i got it maxed out 75hp injectors cold air intake a different fuel pin. just waiting on a turbo