1. Check the engine oil level. Make sure the starter works normally, but the battery is fully charged.
2. Start the engine and warm it to a temperature of 80-95 ?� C (176-205 ?� F).
3. Turn off the engine and remove the spark plugs from the high-voltage wires.
4. Remove the spark plugs.
5. Turn the crankshaft of the engine to remove any foreign objects from the cylinders.  | 6. Screw the tip compressometer in the spark plug hole. |
7. Press the accelerator pedal to full throttle.
8. the Starter cranked shaft of the engine and determine the scale of the instrument compression.
Standard compression: 1200 kPa.
The minimum allowable compression of 1050 psi. 9. Repeat steps 6-8 on the remaining cylinders, making sure that the pressure drop for each cylinder is within acceptable limits.
Permissible differential pressure in the cylinders of the engine: 100 kPa 10. If the compression is low in all the cylinders through the spark plug hole into the cylinders fill a few drops of engine oil and repeat steps 6-9. - If oil filling raises the compression may increase the clearance between the piston rings and cylinder walls.
- If the compression is at the same level may be burned or damaged valves cylinder head gasket.
The tightening torque of the spark plug: 20-30 N ??? m | 
