Dennis, The alarm was pulsing - like it does when you first turn the key on - so I am pretty sure it is the oil pressure. Can’t get back out to the boat until next week but I’ll check that circuit out with an ohm meter then. Based on what Josh said that it is a “alarm when not connected” circuit, then any disconnection in the wire to or from the switch or buzzer would result it continuous alarm state (or it could be the switch). Westerbeke stocks the oil pressure switch for this engine (and it was $35 so I went ahead and ordered it).
Nathan S/V Wisper 1981 C&C 34 Lynn MA, USA _______________________________________________ Thanks everyone for supporting this list with your contributions. Each and every one is greatly appreciated. If you want to support the list - use PayPal to send contribution -- https://www.paypal.me/stumurray