PureFlow AirDog FP-150 - Dodge Cummins 1994-1998 - Manual (Page 13)

13
PureFlow AirDog
AirDog® 100 & 150 Dodge Cummins 1994 - 1998
Section 5-B Engine Fuel Return to Tank
P-7100 Injector Pump and Injector Bleed Return Line, cont’d!
5B-5. Connect the ‘P’ pump metal return line (Ref. Fig. 26) to the return “T” push lock
coupler fitting with the flex fuel line (Ref. Fig. 25).
Figure 26 Figure 27
NOTE: Be sure to plug or cover the port in the fuel pump vacated by the fuel line to prevent
contamination of the pump.
5B-6. Connect the original fuel return line to
the other end of the Return “T” Push
Lock Coupler fitting.
Figure 28
NOTE: The mechanical fuel pump must be disabled by removing the plunger.
5B-7. Remove the mechanical lift pump by removing the two bolts on each side of the
pump. Remove the plunger. Be very careful, DO NOT drop the plunger into the oil
pan.
Block Off Plate
Figure 29 Figure 30
5B-8. Either re-install the pump on the engine without the plunger or cover the mechanical
pump port on the engine with a Big Block Chevy pump “block off” plate from your
local auto parts store.