paparcl

Anybody done this?

After installing your new DDRP and you find that the pressure is lower than required ( Below 12 – 14) You will find a small pressure spring , and new o-ring included in the installation kit.

• Remove the DDRP from the vehicle.

• Position the DDRP in the horizontal position with the square mounting plate facing in the upwards position.

• Remove the 3 mounting screws holding the plate to the pump assy. After removing the mounting plate you will find, an o-ring seal, a small spring, and small check ball under the spring (do not remove the check ball )

• Replace the spring and O-ring. Reattach the mounting plate, paying close attention as to not pinch the sealing o-ring. Retighten the mounting screws to 55 inch lbs. Reinstall DDRP on the vehicle. This new spring will increase the psi about 5-6 lbs

southerman

mine right out the box idle at 18-19 psi. i hope i dont need the spring tossed it.