Dismantling
Attention! The engine can be removed from the vehicle only as part of the power unit (i.e. assembled with the transmission). The power unit is lowered and removed from under the car. In order to freely remove the engine in this way, the car must be raised to a height of at least 75 cm (from the floor to the front bumper) and place on stands.
1. Place the car on a firm, level surface. Block the rear wheels and apply the handbrake. Raise the front of the car and place it on stands.
2. Remove the front wheels.
3. Loosen the screws and remove all engine shields.
4. Remove the hood (see subsection 13.7).
5. Drain the coolant.
6. Drain the oil from the gearbox, screw in and tighten both plugs.
7. Drain the oil and remove the oil filter, clean and tighten the drain plug.
8. Remove the battery.
9. Remove the expansion tank with the bracket.
10. Remove the belts.
11. Remove the generator.
12. On vehicles equipped with air conditioning, unscrew the compressor bolts, move the compressor to the side and secure it. Do not disconnect the hoses from the air conditioning.
13. Remove the power steering pump (see subsection 12.15).
14. Remove the brake calipers, set them aside and secure them without disconnecting the hoses.
15. Disconnect the CV joints from the hubs.
16. Disconnect the axle shafts (see subsection 10.2).
17. Disconnect the gear selector cable.
18. Remove the side member.
19. Disconnect the exhaust pipe.
20. Remove the radiator with hoses and fans.
21. Disconnect the anti-roll bar (see subsection 12.6).
22. On carburetor engines, remove or disconnect the following parts and assemblies:
- air filter;
- fuel hoses;
- throttle cable;
- carburetor wires;
- vacuum booster hose, cooling system and other sensor and valve hoses;
- suction manifold stand;
- exhaust gas sensor connector.
23. On injection engines, follow these steps:
- remove the air filter duct;
- perform fuel system decompression procedures, disconnect fuel hoses from throttle body;
- disconnect the throttle cable;
- disconnect the wiring connectors;
- move the wiring away from the engine.
24. Disconnect all hoses from the intake manifold.
25. Remove the intake manifold stand.
26. Identify and disconnect the heater hoses and coolant hoses from the engine.
27. Disconnect the wiring connectors from the ignition distributor, ignition coil and transistor power supply. Release the wiring sleeve from the clamps on the cylinder head and move it to the side. Unscrew the bolts and remove all ground wires on the cylinder head and on the intake manifold.
28. Disconnect the speedometer cable and wires from the gearbox.
29. Attach the lifting hoist to the cylinder head eyes and tighten the hoist so that it supports the weight of the power unit.
30. Mark the position of the tie bolt (indicated by the arrow) on the front support bracket of the power unit, unscrew the nut of the tie bolt and remove the bolt.
(The publication is reprinted from this resource: NissanBook)
31. Loosen the nut and remove the rear support tie bolt (indicated by the arrow). Remove the front support and bracket.
32. Remove the right support and rubber cushions.
33. Remove the left support and rubber cushions.
34. Make sure all parts, wires and hoses that may interfere with disassembly are disconnected, removed and set aside.
35. Roll a trolley under the engine and carefully lower the power unit. It is advisable to perform this operation with an assistant, since you will need to tilt the engine slightly so as not to touch the body.
36. Roll the power unit out from under the vehicle.
Removal the transmission from the engine
1. Secure the removed power unit with wooden blocks, placing it on a level surface.
2. Remove the starter.
3. Remove the oil pan cover and unscrew the first accessible torque converter bolt, then, turning the crankshaft, unscrew the remaining 3 bolts one by one.
4. Secure the torque converter with a piece of metal strip by bolting the strip to one of the starter mounting holes.
5. Loosen the transmission housing mounting bolts to the engine, marking their location.
6. Carefully remove the transmission.
Installation
1. If the gearbox was removed from the engine, then perform the operations described below in paragraphs 1–6. If the gearbox was not removed, then follow p.7 and so on.
2. Measure the distance from the torque converter mounting bolt holes to the transmission housing split plane, which should be at least 21.1 mm when installed correctly.
3. Install the pins (if they were removed).
4. Carefully install the transmission onto the engine using the guide pins and tighten the bolts to the specified torque.
5. Remove the strip securing the torque converter, align the holes in the torque converter with the holes in the drive disk and tighten the mounting bolts.
6. Tighten the torque converter bolts to the specified torque, install the oil pan cover, tighten the bolts.
7. Install the starter.
8. Place the power unit under the vehicle and attach the hoist.
9. Working with an assistant, carefully insert the power unit into the engine compartment.
10. Install rubber cushions on the left powertrain support bracket, making sure that the cushion pins enter the bracket holes. Install the support in place, tighten the support-to-transmission mounting bolts and tighten them to the specified torque. Insert the tie bolt and tighten the nut by hand.
11. Install the rubber cushions on the right suspension bracket on the body side, making sure that the cushion pins enter the holes in the bracket. Install the support on the bracket and tighten the bolts to the specified torque. Insert the tie bolt and tighten the nut by hand.
12. Insert the rear support pinch bolt and tighten the nut by hand.
13. Install the side member, tighten the bolts to the specified torque.
14. Install the front support bracket and tighten the bolts. Insert the tie bolt and tighten the nut by hand. Align the engine so that the tie bolt marks made during disassembly are aligned and tighten the nut.
15. Rock the power unit and tighten the tie bolts of the remaining supports.
16. Next, the installation of the power unit is carried out in the reverse order.
17. Make sure the wiring is routed as it was originally, secured with clamps and staples, and that all connectors are connected.
18. Replace the axle shaft seals and install the axle shafts.
19. Connect all cooling system hoses.
20. Adjust the throttle cable (see subsection 6.1.7).
21. Connect and adjust the gear selector and kick-down cables.
22. Install and adjust drive belts.
23. Change the oil in the engine and gearbox.
24. Fill with coolant.
25. Start the engine and check for leaks.