Perkins D3.152 Oil Pressure Fluctuations

[Tony Brooks]

3 hours ago, bizzard said:

Binkies Grandson says that the engine was rebuilt. If there was any machining done like rebore there is a good chance that a tiny bit of metal swarf is trapped under the pressure relief valve holding it off its seat a little. If so perhaps a good flushing with flushing oil or a 50/50 mix of cheap engine oil and diesel fuel or paraffin, running the engine for 10 minutes or so then changing that oil for its normal oil, and changing the oil filter.

Certainly worth a try, may or may not work but far easier and cheaper than lifting the engine.