Note: It is necessary to measure the compression in case of loss of power, increased oil and/or fuel consumption.
1. Warm up the engine to normal operating temperature and stop it.
2. Turn out spark plugs.
3. Disconnect the ignition distributor and high voltage wires.
4. Check the compression in the cylinders:
A) Install the compression gauge firmly into the spark plug hole.
b) Fully open the throttle.
V) While cranking the engine over, measure the compression pressure.
Note: Use a fully charged battery to ensure that the engine speed is at least 250 rpm.
Note (only for models with catalytic converter): This procedure must be carried out for a short period of time to avoid overheating of the catalytic converter.
G) Repeat steps (A), (b), (V) for each cylinder.
- Compression pressure value 12.5 kg/cm2 (1.2 MPa) and more
- Minimum allowable pressure 9.0 kg/cm2 (0.9 MPa)
- Permissible cylinder difference 1.0 kg/cm2 (0.1 MPa) and less
d) If the pressure in any cylinder is less than acceptable, pour a small amount of engine oil into the cylinder and repeat the procedures (A), (b), (V).
If adding oil increases compression, then either the rings or the cylinder are damaged or worn.
If "compression" does not change, this indicates damage to the valves and / or cylinder head gasket.
7. Connect the ignition distributor.
8. Install spark plugs.
- Tightening torque - 18 Nm