603 I.P. Pump Adjustable Pressure Valve
603 I.P. Pump Adjustable Pressure Valve
For those of us running larger elements in our 603 I.P. pumps and wanting a better control of return pressure and a way to adjust it I found this.
I am using a adjustable Torkteknology cummins 12 valve bypass valve.
It uses a stainless ball and spring as well as a improved seat design.
It is adjustable from 15-34 P.S.I. Luke at DieselpuimpUk recommends 1-2 bar I.P. pump return pressure.
The thread is 14 mm so it won't screw into the 603 pump which is 12mm and you couldn't get to it under the intake so I moved it remotely to the fuel filter housing and plumbed it with -6 A/N fittings.
Using a Bosch 044 fuel pump and 3/8" pressure and return lines.