Recently, my '87 34, with a Universal Diesel (M25), began not starting when I hit the start button. I replaced the starter button, the glow plug button and the keyed switch; all with quality parts from a marina.
I did mark, and take pictures of how the old switches were wired; NONE had + or - indicated. I hooked the new ones up identical to the old ones, and still NOTHING. The batteries are both putting out 12+ Volts; I have cleaned all grounds and positive terminals on the batteries, engine block and starter solenoid. I have banged on the solenoid......still nothing.
Anybody have any ideas??? I am not good with electrical problems, but have checked the voltage across the screws if the switches. Sometimes I get 12+ across them, but sometimes across the starter button I seem to get a -12V reading, but sometimes it also gives me a +12 reading......is this because I use the wrong probes on the multimeter, or am I hallucinating???? If none of the switch terminals are marked + or -, why should that matter.
Thanks
Howard
I did mark, and take pictures of how the old switches were wired; NONE had + or - indicated. I hooked the new ones up identical to the old ones, and still NOTHING. The batteries are both putting out 12+ Volts; I have cleaned all grounds and positive terminals on the batteries, engine block and starter solenoid. I have banged on the solenoid......still nothing.
Anybody have any ideas??? I am not good with electrical problems, but have checked the voltage across the screws if the switches. Sometimes I get 12+ across them, but sometimes across the starter button I seem to get a -12V reading, but sometimes it also gives me a +12 reading......is this because I use the wrong probes on the multimeter, or am I hallucinating???? If none of the switch terminals are marked + or -, why should that matter.
Thanks
Howard