I searched for past stuff and found lots about Perkins
Yesterday while motoring in my oil
pressure was only reading 3 psi and it normally reads 6-8 psi (Yanmar 4JHE). Shutdown the engine
and checked level and it was fine. At low rpm
of around 1000 it was barely reading anything. The oil
and filter only have 10 hours and the engine
has never burned any oil since i've had it.
Looking though the stuff on past oil pressure problems for the Perkins
I find common items of the sending units and the pressure relief valve. Any one know of common Yanmar
I've had corrosion
issues with the wiring
harness lately and recently had to jumper around the low oil pressure switch plug
to fix that. Would a corrosion
problem in the wiring
cause a low oil pressure reading on the meter (ie does it read high if I were to ground it, meaning that high resistance due to a corroded connector would cause it to read low)?
Since I was trained to believe my indications unless it was proved to be wrong; I should have dropped the anchor
and called for a tow. But the engine was running and sounded fine (but it would till it died due to low oil pressure) so I ran it an hour with the low reading.