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Join Date: Sep 2005
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Oil level ok, charging at 14v. Also replaced oil with synthetic; read testimony from race car driver that his engines ( gas ) run cooler with synthetic.
If this is an older engine converting to Synthetic oils may not be well-advised... there's been some discussion of this in previous threads.
Outside of that it does sound like a faulty sensor, or a partial short in the cct for the buzzer/horn.
1984 Fast/Nicholson 345 "FastForward"
".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)