Engine Oil Pressure: Testing and Inspection

OIL PRESSURE INSPECTION [13B-MSP]

WARNING:
- Hot engines and engine oil can cause severe burns. Turn off the engine and wait until it and the engine oil have cooled.
- Continuous exposure to USED engine oil has caused skin cancer in laboratory mice. Protect your skin by washing with soap and water immediately after working with engine oil.

NOTE:
- When measuring the oil pressure, remove the blind plug from the oil pressure measurement hole on the rear left surface of the engine.






1. Remove the engine cover. Service and Repair

2. Remove the front suspension tower bar. (MT) Front Suspension Tower Bar Removal/Installation - MT

3. Perform the following procedure to secure a sufficient space for removing/installing the blind plug.






a. Remove the water hose from the clip and set it out of the way.

b. Remove the wiring harness clip from the bracket and set the wiring harness out of the way.

4. Remove the blind plug using a hexagonal wrench.

NOTE:
- This inspection can be performed using a combination of SSTs 49 0187 280A (oil pressure gauge) and 49 H019 002 (adapter), or using the following combination of the SSTs.






- 49 D019 908 (gauge), 49 D019 909 (hose), 49 D019 910 (adapter), 49 D019 911 (adapter), and 49 D019 913 (adapter)






5. Install the SSTs to the oil pressure measurement hole using the following procedure.

Using SSTs 49 0187 280A and 49 H019 002
- Assemble SSTs 49 0187 280A and 49 H019 002 outside of the engine compartment beforehand.
- Install SST 49 H019 002 to the oil pressure measurement hole.

Using SSTs 49 D019 908, 49 D019 909, 49 D019 910, 49 D019 911, and 49 D019 913
- First install only SST 49 D019 910 to the oil pressure measurement hole.
- Install the remaining SSTs.

6. Warm up the engine to normal operating temperature.

7. Run the engine at the specified speed, and note the gauge readings.

- If not as specified, inspect for the cause and repair or replace if necessary.

NOTE:
- The oil pressure can vary with oil viscosity and temperature.

Oil pressure (reference value) [oil temperature: 100 °C {212 °F}]
- 500 kPa {5.10 kgf/cm2, 72.5 psi} [3,000 rpm]

8. Stop the engine and wait until it is cool.

9. Remove the SSTs.

10. Apply silicone sealant to the blind plug threads.

11. Install the blind plug.

Tightening torque
- 11.8-17.6 Nm {121-179 kgf-cm, 105-155 in-lbf}

12. Install the wiring harness clip to the bracket.

13. Install the water hose to the clip.

14. Start the engine and confirm that there is no oil leakage.

- If there is oil leakage, repair or replace the applicable part.

15. Install the front suspension tower bar. (MT) Front Suspension Tower Bar Removal/Installation - MT

16. Install the engine cover. Service and Repair