Stu-L
Veteran Member
I have a 1981 Californian with twin Perkins 4.236 engines. Having trouble with my tachs upper and lower helm. Currently I have a mechanical sending unit on the front of each engine. Wires come from the sending unit connect the tachs. The upper and lower helm tachs for a given engine are wired in series and back to the sending unit.
Question: Any one replace/upgrade their tachs if so what did you do for replacement.
Question: Any one replace/upgrade their tachs if so what did you do for replacement.