Operation CHARM: Car repair manuals for everyone.

Engine Lubrication: Testing and Inspection




CHECKING OIL PRESSURE:

Conditions;
1. Grade, quality and viscosity of engine oil must be as specified.
2. New oil filter must be fitted.
3. Engine must be warm.

Checking Pressure:
- Measure pressure with gauge 5270. Usual method to measure oil pressure is via oil pressure sensor opening. However, on turbo engines it is better to use outlet at rear of cylinder head, using adaptor 16218-0 (E). Smear plug with locking fluid (PIN 1161075-5) before refitting.

Note: Oil pressure measured via outlet at rear of cylinder head will be approx. 10% lower than via oil pressure sensor outlet.

- Oil pressure at 33 r/s (2000 r/min) measured at:
- oil pressure sensor:
250-600 kPa (35.6-85.3 psi)
- rear of cylinder head:
225-540kPa (32-76.8 psi).

In Case of Incorrect Values, Check:
1. oil level
2. oil leakages
3. relief valve in oil pump