PureFlow AirDog DF-200 - Dodge Cummins 1994-1998 - Manual (Page 12)

12
PureFlow AirDog
AirDog®II Dodge Cummins 1994 - 1998
Section 5-B
P-7100 Injector Pump and Injector Fuel Bleed Return Line to
Tank!
NOTE: Fuel is returned from the P-7100 fuel pump and also from the injector bleed line(s).
The original 12 Valve Cummins configuration returns the fuel from the P-7100 injector
pump (Ref. Fig 19) directly to the fuel tank while the injector bleed line is routed to the inlet
port of the fuel filter head (Ref. Fig. 21) 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 19 Figure 20 Figure 21
Return line from the End of steel line from P-7100 Injector Bleed Line
‘P’ Pump that connects to the tank return line
5B-1. Disconnect the injector bleed line (Ref. Fig. 21) 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 22
5B-3. Remove the fuel filter head.
5B-4. Connect the injector bleed line banjo fitting (Ref. Fig. 24) with 8mm banjo bolt to
the Return “T” Push Lock Coupler.
Figure 23 Figure 25
Figure 24