Disassembly and Reassembly

DISASSEMBLY






(1) Oil seal
(2) Pump case
(3) Inner rotor
(4) Outer rotor
(5) Pump cover
(6) Relief valve
(7) Relief spring
(8) Plug
(9) Washer
(10) 0-ring
Remove screws which secure oil pump cover and disassemble oil pump.
Inscribe alignment marks on inner and outer rotors so that they can be replaced in their original positions during reassembly.

CAUTION: Before removing relief valve, loosen plug when removing oil pump from cylinder block.

ASSEMBLY






1) Install front oil seal by using ST.
SST 499587100 Oil Seal Installer

CAUTION: Use a new oil seal.

2) Install inner and outer rotors in their original positions.
3) Install oil relief valve and relief spring.






4) Install oil pump cover.
Tightening torque:
T1: 5 ± 1 N-m (0.5 ± 0.1 kg-m, 3.6 ± 0.7 ft-lb)

T2: 44.1 ± 3.4 N-m (4.5 ± 0.35 kg-m, 32.5 ± 2.5 ft-lb)