Oil Pressure Test

- Tools Required:
- J 21867 Oil Pressure Gage
- J 25695-10 Oil Pressure Gage Adapter
- Or Equivalents

NOTE: Prior to testing engine oil pressure, the following conditions must be met:
- Oil must be at the FULL mark on the oil level indicator.
- If the oil is discolored, or deteriorated, it must be changed.
- Any oil leaks must be repaired.





Testing Procedures
1. Remove the oil pressure switch from the cylinder block.





2. Install a J 21867 with a J 25695-10 to the oil pressure switch cavity.
3. Start engine and allow it to reach its normal operating temperature.
4. Increase engine speed to 4,000 rpm.

Measure
- Engine oil pressure.
- Standard oil pressure is 323 to 421 kPa (46.9 to 61.1 psi) at 4,000 rpm.

5. Stop engine and remove the J 21867 and J 25695-10 from cylinder block.
6. Install oil pressure switch to cylinder block; wrap threads with sealing tape. Tighten the oil pressure switch to 14 Nm (123 inch lbs.).
7. Check oil level and refill as necessary.
8. Start engine and check oil pressure switch for oil leakage.