Oil Pump Disassembly and Assembly
1) Remove rotor plate (1) by removing its mounting bolts.
2) Remove outer rotor (1) and inner rotor (2).
3) Remove relief valve (1), spring (2) and retainer (3) by removing circlip (4).
1) Wash, clean and then dry all disassembled parts.
2) Apply thin coat of engine oil to inner and outer rotors, oil seal lip portion, inside surfaces of oil pump case and plate.
3) Install outer (1) and inner rotors (2) to oil pump case.
4) Install relief valve component (1) to rotor plate (2).
5) Install rotor plate and tighten all bolts to specified torque. After installing plate, check to be sure that rotors turn smoothly by hand (0.3 N·m (0.03 kgf-m, 0.25 lbf-ft) torque or below).
Tightening torque
Oil pump rotor plate bolt ( a ): 11 N·m ( 1.1 kg-m, 8.0 lb-ft)