2. Carefully pry the gear wheel off the shaft journal using two screwdrivers or a large crowbar - try not to damage the oil pump housing.
3. If you cannot remove the wheel by prying it off, you will have to drill a couple of holes in its end surface, cut threads in them, and then use a bolt-type puller.
Attention! The drilled gear must be replaced!
4. Remove the inner belt guide - try to remember which side outward it was installed on the shaft journal, if necessary, apply the appropriate marking.
5. Using a small screwdriver, carefully pry the old seal out of its seat - try not to damage the shaft journal.
(The material is taken from a web resource NISSANBOOK.ru)
6. Before installation, lubricate the inner wall of the seal with a thin layer of universal grease.
7. Make a fixture for pressing a new oil seal into the seat from a piece of pipe, a large flat washer and a long bolt. The outside diameter of the pipe should be equal to or slightly smaller than the outside diameter of the oil seal, and chamfers should be removed from sharp edges. The bolt thread should be the same size as the crankshaft pulley mounting bolt. The washer should rest against the end surface of the mandrel and provide reliable support for the bolt head. Insert the oil seal into the seat, then install the fixture, screw the bolt into the end of the shaft journal and, tightening it with a wrench, press the oil seal in. As soon as the oil seal rests against the bottom of the seat, stop tightening the bolt.
 |
 |
8. Place the inner timing belt guide onto the shaft journal (concave side out).
9. Make sure that the key has not fallen out of its groove in the journal.
10. Lightly lubricate the inside surface of the gear with general purpose grease and fit it onto the shaft journal.
11. Install the remaining components in the reverse order of their removal. The timing belt tension adjustment procedure is described in Section 7. Make sure that all fasteners are tightened to the required torque.