29.0 Checking the engine oil pressure on a twin cam engine (16 valves).
1 - manometer
2 - pressure gauge connecting hose
3 - pressure gauge connection point (instead of oil pressure sensor or oil filter)
29.0a Check engine oil pressure.
1 - manometer
2 - pressure gauge connecting hose
3 - pressure gauge connection point (instead of oil pressure sensor or oil filter)
To check the engine oil pressure on engines with 16 valves, the oil filter must be removed to connect a special pressure gauge adapter.
As for other engines, the pressure gauge adapter is screwed in instead of the oil pressure sensor. For diesel engines, the pressure sensor is located above the oil cooler or above the oil filter.
1. Start the engine and warm it up to a temperature of 80°C.
2. Check the engine oil level and top up if necessary.
3. Let the engine idle for 5 minutes to turn on the radiator fan.
4. Stop the engine and unscrew the oil pressure sensor by disconnecting the wire or oil filter from it.
5. Screw in the adapter and connect the pressure gauge.
6. Start the engine and let it idle. The pressure gauge reading should be as follows:
XU engine (8/16 valves) . 4.4 bar
Engine - XUD9 2.1 bar
XUD11 engine - 2.25 bar
7. Raise the engine speed to 4000 rpm and check that the oil pressure has also increased.
XU engine (8/16 valves) . 5.3 bar
XUD9 engine - 5.0 bar
XUD11 motor - 5.0 bar
The data given is for new engines. If the engine has been operated for a long time, then it is possible that the oil pressure will be correspondingly lower at idle.
8. Disconnect the pressure gauge and screw in place the oil pressure sensor. A copper sealing ring is installed on the sensor. Sensor tightening torque 34 Nm (1.9 liter engine) or 25 Nm (2.1 liter engine). If the oil pressure measurement was performed on a 16 valve engine, reinstall the oil filter.