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post #12 of Old 07-21-2013 Thread Starter
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Yanmar Oil Pressure Pegged - Part II


So I went to the boat today. Changed the oil filter, pulled the sender, and put in new oil; in that order. Sender looked fine, not plugged with stuff. I didn't have a mechanical pressure gauge to try, so I reinstalled the sender and jiggled the wire some.

After I turned the key to on, and before I pushed the start button, I looked at the oil gauge and it was pegged, without the motor on. The other gauges hadn't moved. I am more convinced now it is a electrical problem or the oil sensor itself.

Thanks all for the advice.


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