4.2.3. Check of oil pressure

Check of serviceability of functioning of the measuring instrument of pressure of oil

 PERFORMANCE ORDER

1. Disconnect an electrical wiring from the measuring instrument. By means of a special lamp sampler (12 V, 2.4 W) ground contact of the socket from a measuring instrument plait on weight.

2. Include ignition.
3. If all components of a chain work regularly, the control lamp will light up and will begin to work in the continuous or flashing mode, the arrow of the measuring instrument at the same time will be displaced. If the lamp works, but the arrow of the measuring instrument will remain motionless, replace the measuring instrument. At simultaneous refusal and a lamp and the measuring instrument it is necessary to make the corresponding recovery repair of an electric chain. Also check a condition of the sensor, in case of need make its replacement (see further).


Check of serviceability of functioning of the sensor of pressure of oil

 PERFORMANCE ORDER

1. Disconnect an electrical wiring from the sensor and turn out it from a landing head of a full-line oil filter.
2. Connect an ohmmeter between the contact plug and the case of the sensor and consider instrument reading. If conductivity is absent, replace the sensor.
3. Further pass a thin core throughout an oil opening in a sensor end face. Press on a core and again consider the indication of an ohmmeter, - conductivity has to disappear, otherwise replace the sensor.

The sensor has to be disconnected during creation in an opening of pressure about 5 kgfs/cm2.

4. By giving in the sensor of air check serviceability of a condition of its diaphragm (the sensor has to remain tight).


Check of pressure

 PERFORMANCE ORDER

1. Disconnect a negative wire from the battery.

If the stereosystem established on the car is equipped with a security code before disconnecting the battery make sure that you have the correct combination for input of the audio system in action!

2. The car also establish to Poddomkratta it on props.

3. Disconnect an electrical wiring from the sensor and turn out it from a landing head of an oil filter.

4. Check is made by connection of the special mechanical manometer instead of the oil pressure sensor. Also the tachometer can be required if check has to be made at certain turns of the engine.
5. Following instructions of manufacturers, connect instead of the sensor the mechanical manometer for measurement of oil pressure. In case of need connect also a tachometer. Connect a negative wire to the battery.
6. Start the engine and leave it working at single turns.
7. Consider the indication of the manometer at the cold engine. Write down result of measurement.

In case of need turns of the engine should be established on a preset value, - see Specifications.

8. Warm up the engine up to the normal working temperature (the top radiator hose has to become warm to the touch).
9. Consider the indication of the manometer at the hot engine, write down result, then switch off ignition.
10. Compare results of measurements to requirements of Specifications. Excessively low pressure at the hot engine and high at cold is said that oil not of that grade is used. Fill in oil of the required grade in the engine and repeat check.
11. Excessively low indications in both measurements testify violation of serviceability of functioning of the oil pump (also the probability of use of too liquid oil is not excluded). Overestimate of both indications can be connected with overflow of a case, excessively high viscosity of the oil which is filled in in the engine or with malfunction of the reducing valve of the oil pump.

12. Grease a carving part of the sensor with sealant, or wind it with the teflon film / tape FUM. Screw the sensor in a head of the basis of an oil filter and tighten it with the required effort (12 H • м). Restore initial connection of an electrical wiring.