PureFlow AirDog®
AirDog® II-5G DF-165
2011-2016 6.7L Powerstroke
Section 14
Pressure Regulator Adjustment
25
AirDog®II-5G ADJUSTABLE FUEL PRESSURE REGULATOR
The AirDog®II-5G rises to a new level of performance with an adjustable diaphragm fuel
pressure regulator. This regulator offers more consistent fuel pressure and allows for higher
flow rates at pressure. This regulator can also be boost compensated to battle any pressure
drops under wide open throttle. The boost compensation kit is sold separately.
PRESSURE ADJUSTMENT FOR THE 6.7L POWERSTROKE
Turn the adjuster screw counter-clockwise to reduce the output pressure or clockwise to
increase the pressure. Be sure to re-torque the jam nut after adjusting the regulator.
IT IS
STRONGLY RECOMMENDED TO ADJUST THE PRESSURE WHILE USING A FUEL PRESSURE
GAUGE. TOO MUCH OR TOO LITTLE PRESSURE MAY CAUSE DAMAGE TO THE INJECTION
SYSTEM!
Every AirDog II-5G has a 90-degree brass fitting in the pump to where you can add a fuel
pressure gauge or fuel pressure sending unit for an electric gauge.
Loosen the Jam Nut with a 5/8 wrench
Re-torque after adjustment
Use a 3/16 allen to adjust the pressure
regulator
PRESSURE
ADJUSTMENT
+
-
PRE-SET AT 65PSI
FROM FACTORY
