See Figures 1, 2, 3, 4, 5 and 6All 4 Cylinder Gasoline Engines
In order to replace the rear main oil seal, the rear main bearing cap must be removed. Removal of the rear main bearing cap requires the use of a special rear main bearing cap puller. Also, the oil seal is installed with a special crankshaft rear oil seal drift. Unless these or similar tools are available to you, it is recommended that the oil seal be replaced by a Nissan/Datsun service center or an independent shop that has the proper equipment.
- Remove the engine and transmission assembly from the vehicle.
- Remove the transmission from the engine. Remove the oil pan.
- Remove the clutch from the flywheel.
- Remove the flywheel from the crankshaft.
- Remove the rear main bearing cap together with the bearing cap side seals.
- Remove the rear main oil seal from around the crankshaft.
- Apply lithium grease around the sealing lip of the oil seal and install the seal around the crankshaft using a suitable tool.
- Apply sealer to the rear main bearing cap as indicated in the accompanying illustration, install the rear main bearing cap, and tighten the cap bolts to 33-40 ft. lbs. (44-54 Nm)
- Apply sealant to the rear main bearing cap side seals and install the side seals, driving them into place with a suitable drift.
- Install the oil pan with a new gasket.
- Install the flywheel and clutch assembly.
- Install the transmission to the engine, then install the engine/t