I have a Volvo Penta
2003 which was installed in my Ericson
36 in 1986. I believe she had a bit of a rebuild
in 2000 (not sure what was done) and I bought the boat in 2004 and have since put maybe 3000 hours on the engine
as I have been sailing (and motor
sailing!) around the world.
When I started out the oil
pressure was around 45psi but seemed to drop down to around 30-35 soon after I left on the trip. That pretty much stayed the same until recently where, here in Greece
, the engine
will start up at around 30 but will fall to 15 after about 4-5 hours of running time - that worries me.
level is fine. I change the oil every 75 hours of running time. I was using SAE 40 and I am now trying 20/50 - no change. The engine temp is normal and I can't see any performance changes. The guage seems to work alright and there is no diesel
in the oil.
Does anyone have an opinion on what might be wrong? - Worn bearings? Oil pump? Is there a pressure relief valve on a Volvo penta
Thanks a lot for your thoughts, Ian