| 1. Make sure the battery is fully charged. If you want to charge the battery. |
| 2. Warm up the engine to operating temperature. |
| 3. Remove the cover from the central engine. |
| 4. Disconnect high-voltage wires and ignition coils. |
| 5. Remove all spark plugs. |
 | 6. Insert a compression gauge into the hole for a candle of 1st cylinder. |
| 7. Ask the assistant to fully depress the accelerator pedal for a few seconds and turn the starter. |
| 8. Record the maximum compression meter reading. |
9. Similarly check up a compression in other cylinders. Nominal compression - 1275 kPa, and the difference between the compression cylinder must not exceed 98 kPa. |
10. If the compression in one or more cylinders lowered through the spark plug hole into the cylinder pour a small amount of engine oil and re-check the compression. Record the maximum meter reading: - If the compression is increased, perhaps, worn piston, piston rings and cylinder wall;
- If the compression is still low, it means that is worn or burnt through valve or valve seat;
- If the compression is reduced in two adjacent cylinders, perhaps burnt or deformed gasket mating surface of the cylinder head. |
