Nissan Sentra Service Manual: Unit disassembly and assembly

OIL PUMP

1. O-ring
2. Oil pan (upper)
3. Oil level gauge guide
4. O-ring
5. Oil level gauge
6. Oil pump chain tensioner
7. Oil pump drive chain
8. Crankshaft sprocket
9. Oil pump sprocket
10. Oil pump
11. Drain plug washer
12. Drain plug
13. Oil pan (lower)
14. Oil filter
15. Connector bolt
16. Crankshaft position sensor
17. Rear oil seal

1. Refer to LU-10, "Removal and Installation"
2. Oil pan side

Removal and Installation

REMOVAL

1. Remove engine under cover. Refer to EXT-16, "Exploded View".
2. Remove air cleaner and air duct. Refer toEM-25, "Removal and Installation".
3. Remove fender protector. Refer to EXT-28, "FENDER PROTECTOR : Removal and Installation - Front Fender Protector".
4. Remove timing chain. Refer to EM-49, "Removal and Installation".
5. Remove oil pump.

• Loosen bolts in reverse order as shown.

(1) : Oil pump

(2) : Oil pan (upper)

INSTALLATION

CAUTION:

Do not reuse O-rings or washers.

Installation is in the reverse order of removal.

Oil Pump

• Tighten bolts in numerical order as shown.

(1) : Oil pump

(2) : Oil pan (upper)

Inspection

INSPECTION AFTER INSTALLATION

1. Check the engine oil level. Refer to LU-7, "Inspection".
2. Start the engine, and check that there are no leaks of engine oil.
3. Stop the engine and wait for 10 minutes.
4. Check the engine oil level, and adjust the level. Refer to LU-7, "Inspection".