Engine: Service and Repair
ENGINE ASSEMBLY
Removal and Installation
WARNING:
^ Place chocks at front and back of rear wheels.
^ For engines not equipped with engine slingers, attach proper slingers and bolts as described in the NISSAN Parts Catalog.
CAUTION:
^ Do not start working until exhaust system and coolant are cool.
^ If items or work required are not covered by the engine main body Procedure, refer to the applicable Procedures.
^ Use the correct supporting points for lifting and jacking. Refer to "LIFTING POINT".
^ In removing the drive shafts, be careful not to damage any transaxle grease seals.
^ Before separating the engine and transaxle, remove the crankshaft position sensor (POS).
^ Do not damage the edge of the crankshaft position sensor (POS) or the ring gear teeth.
REMOVAL
1. Release fuel pressure. Refer to "FUEL PRESSURE RELEASE".
2. Remove the engine cover, and the engine under cover using power tool.
3. Drain engine oil.
4. Drain coolant. Refer to "DRAINING ENGINE COOLANT".
5. Remove the following parts:
6. Remove hood assembly. Refer to "Removal and Installation of Hood Assembly".
7. Remove front tower bar using power tools.
8. Remove battery and tray using power tools.
9. Remove air inlet duct.
10. Remove air intake duct and air cleaner case assembly with mass air flow sensor.
11. Remove power brake booster vacuum hose.
12. Remove drive belts.
13. Remove radiator assembly, coolant reservoir, and system hoses. Refer to "Removal and Installation".
14. Remove windshield wiper assembly. Refer to "Removal and Installation".
15. Disconnect engine room harness from the engine side and set it aside. Disconnect engine harness ground connections.
16. Disconnect heater hoses.
17. Remove the front wheel and tires.
18. Remove the front drive shafts. Refer to "Removal and Installation".
19. Discharge and recover the R134a refrigerant. Refer to "HFC-134a (R-134a) Service Procedure".
20. Remove the A/C compressor using power tools.
21. Disconnect fuel hose quick connection at vehicle piping side.
22. Disconnect the transaxle shift controls.
23. Remove the starter motor. Refer to "Removal and Installation".
24. Remove the front exhaust tube using power tools. Refer to "Removal and Installation".
25. Disconnect reservoir tank for the power steering from engine compartment bracket and position it aside.
26. Remove the front suspension member. Refer to "Removal and Installation".
27. Disconnect the power steering pump, without disconnecting the piping, from the engine and move it aside and secure with wire.
28. Position a suitable transmission jack under the engine and transaxle assembly.
29. Install engine slingers into front of left bank cylinder head and rear of right bank cylinder head.
30. For additional safety, secure the engine in position with a hoist.
31. Disconnect the LH transaxle mount and the RH engine mount.
32. Carefully lower the engine and transaxle assembly with the transmission jack, avoiding interference with the vehicle body.
CAUTION:
^ Before and during this procedure, always check if any harnesses are left connected.
^ Avoid any damage to, or any oil/grease smearing or spills onto the engine mounting insulators.
33. Remove the crankshaft position sensor (POS).
34. Separate the engine and transaxle and mount the engine on a suitable engine stand.
INSTALLATION
Installation is in the reverse order of removal.
INSPECTION AFTER INSTALLATION
^ Before starting engine, check the levels of engine coolant, engine oil and working fluid. If less than required quantity, fill to the specified level.
^ Use procedure below to check for fuel leakage.
^ Turn ignition switch ON (with engine stopped). With fuel pressure applied to fuel piping, check for fuel leakage at connection points.
^ Start engine. With engine speed increased, check again for fuel leakage at connection points.
^ Run engine to check for unusual noise and vibration.
^ Warm up engine thoroughly to make sure there is no leakage of engine coolant, engine oil, working fluid, fuel and exhaust gas.
^ Bleed air from passages in pipes and tubes of applicable lines, such as in cooling system.
^ After cooling down engine, again check amounts of engine coolant, engine oil and working fluid. Refill to specified level, if necessary.
^ Summary of the inspection items: