I recently posted about takin the AFC arm out. Well needless to say i tryed it. But i cant launch hard or it puts the fire out, has an eruption of smoke, bogs, then surges like no other !, tires break loose and nothin to show for it ?? Now if im rollin i can use my foot to "drive" it, but i like to to stomp on it and have it go ? Im runnin a five speed as well.

So Ive been readin and how exactly do you loosen the star wheel ?? And tune the AFC ? I want to be able to launch hard, and have it pull from bottom to top? Instead of mid to top ? Any suggestions would be appreciated ! Thanks

 

Try this,

http://wiki.dieseltruckresource.com/wiki/Pump_Mod%27s

 

Here's another http://www.cumminsdatabase.com/read.php?id=58