Originally Posted by 4cstr
Ok...help us non-Cummins guys out. What are DV's?
laugh Sorry Dave, I couldn't resist.
DV's = Delivery Valves
They sit on top of the P-pumps right below where the injection lines screw on. There is 6 of them, one for each plunger. How big the valve is cut helps determine how much fuel the pump can push into the injection line with each cycle.