I have just bought my first sailboat. Its a Nautical Development Offshore
40 with a Perkins
4-108M diesel engine
. One of the things that I am looking to fix (not too long a list) is the oil
pressure gauge reading and wanted to ask the forum members for advice.
With the engine
shut down the oil
pressure gauge reads full scale deflection. First, is that normal? (I think not). When the engine is started the gauge gives a flick then continues to read full scale and even with the engine warm the reading never changes.
Has anyone experienced this? Where on the engine is the oil pressure reading taken from? I have downloaded some copies of the engine workshop manual but didn't get much info on the electrical
connections to the engine. Is there any manuals
out there that are more extensive and include this sort of information?
I have read on other forum threads that there is an electrical
resistance that can be checked to see if the sender is correctly measuring various oil pressures.
So to summarize, I am looking for the location of the sender unit on the engine, what resistance range is correct and any other tips on what it might be.