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Recent content by cw.abeljr

  1. C

    Oil pressure sender

    Hello All, I am new to this forum and I have recently purchased a 1985 Shamrock boat with a Yanmar 4LHA-STE engine. I have noticed since using it a couple times that the oil pressure is dropping into the red area on the gauge at low RPM(below 1000 RPM) after the engine reaches operating temp. I...
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