Re: Cooling problem solved now what's wrong with my tach?
The boat was wired with excite via the ignition key. So yes, I just disconnected the excite. Some alternator expert told me that disconnecting the excite while an alternator is putting out a good output is not good practice. Most of the time, it might be OK, but occasionally, not so. I think generally most of us avoid bad practice on principle.
Bristol 31.1, San Francisco Bay