Air Injection Pump: Overhaul: Disassembly

Fig 1: ROTOR RING REMOVAL

Courtesy of NISSAN NORTH AMERICA, INC.

Remove pulley drive bolts and remove pulley from hub. Clamp hub in a suitable holding fixture and remove housing end cover bolts, remove housing end cover. Scribe rotor ring and side of rotor to ensure proper reassembly, then remove six screws (four on two vane type) securing rotor ring to rotor. Remove rotor ring and side seal (three vane type) from rotor. Rear bearing (three vane type) may be pressed out of rotor ring using a suitable press.

Remove vanes from rotor. Remove three sets of carbon shoes and three shoe springs (two sets in two vane type). If relief valve (three vane type) is to be replaced, use a suitable puller.

Fig 2: CARBON SHOE REMOVAL

Courtesy of NISSAN NORTH AMERICA, INC.