Engine: Service and Repair
ENGINE ASSEMBLYRemoval and Installation
EM-109 Component:
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 section, follow the applicable procedures.
^ Use the correct supporting points for lifting and jacking.
^ 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.
2. Remove the engine cover, and the engine under cover using power tool.
3. Drain engine oil.
4. Drain coolant.
5. Remove hood assembly.
6. Remove front tower bar using power tools.
7. Remove battery and tray using power tools.
8. Remove air inlet duct.
9. Remove air intake duct and air cleaner case assembly with mass air flow sensor.
10. Remove power brake booster vacuum hose.
11. Remove drive belts.
12. Remove radiator assembly, coolant reservoir, and system hoses.
13. Remove windshield wiper assembly.
14. Disconnect engine room harness from the engine side and set it aside. Disconnect engine harness ground connections.
15. Disconnect heater hoses.
16. Remove the front wheel and tires.
17. Remove the front drive shafts.
18. Discharge and recover the R134a refrigerant.
19. Remove the A/C compressor using power tools.
20. Disconnect fuel hose quick connection at vehicle piping side.
21. Disconnect the transaxle shift controls.
22. Remove the starter motor.
23. Remove the front exhaust tube using power tools.
24. Disconnect reservoir tank for the power steering from engine compartment bracket and position it aside.
25. Remove the front suspension member.
26. Disconnect the power steering pump, from the engine and move it aside without disconnecting the piping, and secure with wire.
27. Position a suitable transmission jack under the engine and transaxle assembly.
28. Install engine slingers into front of LH cylinder head and rear of RH cylinder head.
a. Install the engine slinger rear (B).
A: Vehicle front
--->: Front
b. Install the engine front upper slinger (B) and engine front lower slinger (C).
A: Vehicle rear
--->: Engine front
29. For additional safety, secure the engine in position with a hoist.
30. Disconnect the LH transaxle mount and the RH engine mount.
31. Carefully lower the engine and transaxle assembly using Tool, 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.
Tool number: KV101J0010 (J-47242)
32. Remove the crankshaft position sensor (POS).
33. Separate the engine and transaxle and mount the engine on a suitable engine stand.
INSTALLATION
Note the following, and install in the reverse order of removal.
^ Rotate the drive plate for the hole of the drive plate to go down.
^ Install transaxle assembly to engine assembly with a hoist.
^ When installing transaxle to the engine, attach the bolts in accordance with the following standard.
CAUTION:
^ When replacing an engine or transaxle you must make sure the dowels are installed correctly during re-assembly.
^ Improper alignment caused by missing dowels may cause vibration, oil leaks or breakage of drivetrain components.
^ When turning crankshaft, turn it clockwise as viewed from the front of the engine.
^ After converter is installed to drive plate, rotate crankshaft several turns and check to be sure that transaxle rotates freely without binding.
^ Align the positions of tightening nuts for drive plate with those of the torque converter, and temporarily tighten the nuts. Then, tighten the nuts with the specified torque.
Drive plate nuts: 51 Nm (5.2 kg-m, 38 ft-lb)
CAUTION:
^ Do not reuse O-ring and copper washers.
^ When turning crankshaft, turn it clockwise as viewed from the front of the engine.
^ After converter is installed to drive plate, rotate crankshaft several turns and check to be sure that transaxle rotates freely without binding.
^ Install crankshaft position sensor (POS) sensor.
^ After completing installation, check for fluid leakage, fluid level, and the positions of CVT Refer to CVT-12, "Checking CVT Fluid", CVT-172, "Adjustment of CVT Position", CVT-173, "Checking of CVT Position".
Testing and Inspection
Adjustments
Testing and Inspection
^ When replacing the CVT assembly, erase EEP ROM in TCM. Refer to CVT-7, "Precaution for TCM and CVT Assembly Replacement". Vehicle Damage Warnings
INSPECTION AFTER INSTALLATION
^ Before starting engine, check oil/fluid levels including engine coolant and engine oil. 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 Fuel, exhaust gas, or any oils/fluids including engine oil and engine coolant.
^ Bleed air from passages in lines and hoses, such as in cooling system.
^ After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to specified level, if necessary.
^ Summary of the inspection items:
