aviator7836
Veteran Member
- Joined
- Mar 11, 2023
- Messages
- 27
- Vessel Name
- Arcadia
- Vessel Make
- 2005 Mainship Pilot 34
Hello all,
I have a 2004 MS Pilot 43 with a single Yanmar 6LYA-STP 370HP engine. Today I noticed something that concerned me relative to oil pressure and wanted to check with others about their experience.
In the past, my memory was that as soon as the engine started the oil pressure went straight to approx. 75 psi regardless of engine RPM and stayed there throughout operation. Today, at idle the oil pressure was only about 30 psi, perhaps 40 psi at 1000 RPM, and increased to the usual 75 psi or so as RPM was increased toward operating speed. This seemed out of the norm from my prior experience with the boat.
Can others please tell me what your indicated engine oil pressure is and whether it is always at the 75-80 psi operating pressure regardless of engine RPM or whether it is highly variable based on engine speed?
I just want to figure out if I have a pending oil pressure problem (pressure regulator, looming pump failure, or the like).
Thanks in advance for you experience and expertise!
Doug
I have a 2004 MS Pilot 43 with a single Yanmar 6LYA-STP 370HP engine. Today I noticed something that concerned me relative to oil pressure and wanted to check with others about their experience.
In the past, my memory was that as soon as the engine started the oil pressure went straight to approx. 75 psi regardless of engine RPM and stayed there throughout operation. Today, at idle the oil pressure was only about 30 psi, perhaps 40 psi at 1000 RPM, and increased to the usual 75 psi or so as RPM was increased toward operating speed. This seemed out of the norm from my prior experience with the boat.
Can others please tell me what your indicated engine oil pressure is and whether it is always at the 75-80 psi operating pressure regardless of engine RPM or whether it is highly variable based on engine speed?
I just want to figure out if I have a pending oil pressure problem (pressure regulator, looming pump failure, or the like).
Thanks in advance for you experience and expertise!
Doug
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