Disassembly and Assembly
Disassembly and Assembly (Models with VQ35DE)COMPONENT:
INSPECTION BEFORE DISASSEMBLY
Disassemble oil pump only when the following malfunctions occur.
^ If oil leakage is found on oil pump.
^ Oil pump pulley is damaged or deformed.
^ Performance of oil pump is low.
DISASSEMBLY
NOTE: Secure oil pump in a vise if necessary.
CAUTION: Use copper plates when securing in a vise.
1. Remove rear cover mounting bolts, and then remove rear cover from body assembly
2. Remove O-ring C from body assembly.
3. Remove rear side plate from cartridge, and then remove Teflon ring and O-ring B from rear side plate.
4. Remove rotor snap ring using a snap ring plier, and remove pulley from body assembly
CAUTION: Remove pulley so as not to be damaged when removing rotor snap ring.
5. Remove cartridge, front side plate, flow control valve A, flow control valve spring and flow control valve B assembly from body assembly.
CAUTION: Do not drop and damage flow control valve A and flow control valve B assembly when removing.
6. Remove oil seal from body assembly
7. Remove suction pipe from body assembly.
8. Remove O-ring A from body assembly.
9. Remove bracket mounting bolts, and then remove bracket from body assembly.
ASSEMBLY
NOTE: Secure oil pump in a vise if necessary.
CAUTION: Use copper plates when securing in a vise.
1. Apply multi-purpose grease to oil seal lips. Apply Genuine Nissan PSF or equivalent to around oil seal, and then install oil seal to body assembly using the drift [SST].
2. Install bracket to body assembly, and then tighten mounting bolts to the specified torque.
3. If dowel pin has been removed, insert it into body assembly by hand. If cannot be inserted by hand, lightly tap with a hammer.
4. Install flow control valve A, flow control valve spring and flow control valve B assembly as shown in the figure.
5. Install front side plate (3) with dowel pin (2) on flow control valve A (1) side as shown in the figure aligning with front side plate cutout (A) to body assembly (4).
6. Install cam ring as shown in the figure.
7. Install pulley to body assembly.
CAUTION: Do not damage oil seal when installing pulley.
8. Install rotor so that mark faces body assembly, and then install it to pulley shaft.
9. Install vane to rotor so that arc of vane faces cam ring side.
10. Install rotor snap ring to slit of pulley shaft using a hammer and a 10 mm (0.39 inch) socket.
CAUTION:
^ Do not damage rotor and pulley shaft.
^ Power steering oil pump assembly must be replaced if rotor is damaged.
11. Install rear side plate with dowel pin A on flow control valve A side as shown in the figure aligning with rear side plate cutout B to cartridge.
12. Apply Genuine Nissan PSF or equivalent to O-ring C, and then install O-ring C to body assembly.
13. Apply Genuine Nissan PSF or equivalent to O-ring B, and then install O-ring B to rear side plate.
14. Apply Genuine Nissan PSF or equivalent to Teflon ring, and then install Teflon ring to rear side plate.
15. Install rear cover to body assembly, and then tighten mounting bolts to the specified torque.
16. Apply Genuine Nissan PSF or equivalent to O-ring A, and then install O-ring A to body assembly.
17. Install suction pipe to body assembly