Yanmar 300 6LP - STE low oil pressure

[briliz197]

I have the above engine on my 2000 Albin 28 which is running like a dream, but I want to increase the oil pressure.
Based on one kg/cm2 being equal to 14 psi , at idle I have 28psi and at 3000 rpm I have 42 psi. My alarm goes off occasionally at idle.
I would like to know how to increase the pressure or is the pressure normal for the engine that I have?

Brian Prydderch, Palm City Fl

[Norseman]

My oil pressure is also low at idle, but does not set off any alarm.
I was concerned before buying the boat, but the surveyor said it is ok and it turns out most 6LP has the same indication at idle.

[carolmarie]

Look up past posts on this subject, including mine. The low oil pressure at idle is normal according to YANMAR.
I had discussions with their reps years ago at the Newport show because the needle was ALWAYS in the red zone at idle - BUT NEVER ALARMED. They happily sent me a new gage (free), with Blue markings instead of the Red in hopes that it would make me feel better. I never installed it. . Don.

[Norseman]

. with Blue markings instead of the Red in hopes that it would make me feel better. I never installed it. . Don.

Still got that gauge?
I will happily take it off your hands.

Name your price and we may have a deal.

[carolmarie]

I GOT IT FOR FREE SO IT’S YOURS FOR FREE. SEND ME A PM WITH YOUR DETAILED CONTACT INFO.
DON.

[Norseman]

I GOT IT FOR FREE SO IT’S YOURS FOR FREE. SEND ME A PM WITH YOUR DETAILED CONTACT INFO.
DON.

Thx, PM sent.

[Maye Marie]

I will bet its your gauge or sender. You could install a mechanical gauge right at the engine very easily. I would open up my engine box and peak at the gauge if I was concern. The mechanical one always read higher. I then bought new gauge and sender and it reads much more accurate.