Regularly carrying out this check will also allow you to prevent the occurrence of malfunctions in advance.
Order of execution
1. Check engine oil level. Make sure the starter is working properly and the battery is fully charged.
2. Start the engine and warm it up to 80-95°C.
3. Stop the engine and remove the air filter element.
4. Remove the fuel injectors.
5. Turn a cranked shaft of the engine.
6. Screw the tip of the compression tester 09351-27000 into the hole for the fuel injector.
7. Turn the crankshaft of the engine with a starter and determine the compression on the scale of the device. Compression: 2942 kpa.
8. Repeat steps 6-7 on the remaining cylinders, making sure that the pressure drop for each of the cylinders is within acceptable limits. Permissible differential pressure in the engine cylinders: 100 kpa.
9. If compression is low in all cylinders, pour a few drops of engine oil into the cylinders through the spark plug holes and repeat steps 6-8.
- if adding oil raises compression, the piston rings may be worn;
- if the compression remains at the same level, the valves may have burned out or the cylinder head gasket may have been damaged.