- key "10"
- two screwdrivers
Disconnect the wire from the "–" terminal of the battery.
Drain the oil from the engine crankcase.
Remove the camshaft drive belt (see subsection 10.3.2.).
Remove the oil pan and oil receiver (see subsection 10.8.1.).
For clarity, the operations are shown on a removed engine.

1. Using two screwdrivers, remove the pulley from the crankshaft (to make it easier to remove the pulley, apply a liquid such as WD-40 to the place where it is installed) and clean the crankshaft toothed pulley from oil and dirt.

2. If the key does not fit tightly in the crankshaft groove, remove it so as not to lose it.

3. Remove the six bolts securing the oil pump to the cylinder block. Note that there are flat washers under the bolts.

4. Using a screwdriver, separate the oil pump from the cylinder block and...

5....remove the pump from the front end of the crankshaft. Remove the gasket.

6. Clean the surface of the cylinder block mating with the pump from old grease and dirt and, having lubricated the gasket with a thin layer of consistent grease (so that it stays on the block), install the gasket on the block.

7. Pour 10–20 g of engine oil into the pump through the hole under the oil receiver.

8. Rotate the pump gears a few times to lubricate their working surfaces. The gears should rotate easily, without jamming.

9. Rotate the oil pump drive gear to ensure it is correctly installed on the crankshaft: the projections on the drive gear should align with the flats on the crankshaft.

10. Lubricate the working edge of the oil seal with engine oil and install the oil pump in place. At the same time, carefully tuck the working edge of the oil seal onto the crankshaft journal using a wooden stick. Then tighten the pump mounting bolts.

11. If you removed the key, install it in the groove of the crankshaft.

12. Install the pulley on the crankshaft with the mark facing outward and...

13....press it onto the shaft using a soft metal mandrel. Then install the remaining parts in the reverse order of removal. Adjust the tension of the camshaft drive belt.
