PureFlow AirDog DF-165 - Dodge Cummins 1989-1993 - Manual (Page 12)

12
PureFlow AirDog
AirDog
®
II Dodge Cummins 1989 - 1993
Section 5-B Fuel to Engine
VE Injector Pump and Injector Fuel Bleed Return Line to Tank!
NOTE: Fuel is returned from the VE fuel pump and also from the injector bleed line(s).
The original 12 Valve Cummins configuration returns the fuel from the VE injector pump
(Ref. Fig 16) directly to the fuel tank while the injector bleed line is routed to the inlet port of
the fuel filter head (Ref. Fig. 18) to be recycled back to the engine. When installing the
AirDog®II, it is best to route the fuel from the injector bleed line back to the fuel tank as
well.
Figure 16 Figure 17 Figure 18
Return line from the End of steel line from VE Pump Injector Bleed Line
VE’ Pump that connects to the tank return line
5B-1. Disconnect the injector bleed line (Ref. Fig. 18) by removing the 8 mm banjo bolt. Be
careful to not misplace the O’ring washer that seals the banjo fitting.
5B-2. Disconnect and remove the banjo fitting
and metal fuel line connecting the fuel pump
to the filter head.
Figure 19
5B-3. Remove the fuel filter head.
5B-4. Connect the injector bleed line banjo fitting (Ref. Fig. 21) with 8mm banjo bolt to
the Return “T” Push Lock Coupler.
Figure 20 Figure 22
Figure 21