Air Injection Pump: Overhaul: Reassembly

Place pump housing in a vise, clamping pump drive hub between jaws. Correctly assemble vanes on a dummy shaft, place vanes into rotor. Do not remove dummy shaft at this time, in three vane type make sure one vane is against housing stripper. Insert one carbon shoe on each side of every vane.

NOTE: Position carbon shoes so that chamfered end faces vane.

Insert shoe spring into each shoe slot.

NOTE: When springs are properly positioned, they will be flush or below rotor surface.

Curved portion of spring will be against shoe and ends of springs will be against wall of shoe slot. Position new carbon seal on rotor ring so that holes line up. Position rotor ring, lining up scribe marks. Install retaining screws and torque to 2.2-3.6 ft.lbs. Remove dummy shaft from vanes, place housing end cover into position indexing vane shaft into vane bearings.

NOTE: Do not force cover on as this will distort vane bearings.

Seat end cover to housing and starting with bolt adjacent to large dowel torque bolts to 7.2-9.4 ft.lbs. Remove from vise, insert relief valve into housing mounting hole. Tap into position with plastic hammer.