I have a 1963 Merc 1000, and the motor is not charging the battery. The tach is also not working.
I checked the rectifier by disconnecting one of the yellow wires, and checking the continuity across the terminals (yellow to ground, yellow to red). I showed continuity in one direction, but not in the other. Checking red to yellow read opposite to checking ground to yellow.
I disconnected one yellow, and checked for continuity across the yellow wires: a few ohms (~10) resistance.
With the engine running, I measured about 17 VAC across the yellow wires at idle. This didn't change when I ran the engine to a high idle, or "goosed" the throttle.
I measured about 12 volts across the output of the rectifier at idle. This did not change when I ran the engine to a high idle, or "goosed" the throttle.
Does anyone have any ideas? Thanks in advance.
I checked the rectifier by disconnecting one of the yellow wires, and checking the continuity across the terminals (yellow to ground, yellow to red). I showed continuity in one direction, but not in the other. Checking red to yellow read opposite to checking ground to yellow.
I disconnected one yellow, and checked for continuity across the yellow wires: a few ohms (~10) resistance.
With the engine running, I measured about 17 VAC across the yellow wires at idle. This didn't change when I ran the engine to a high idle, or "goosed" the throttle.
I measured about 12 volts across the output of the rectifier at idle. This did not change when I ran the engine to a high idle, or "goosed" the throttle.
Does anyone have any ideas? Thanks in advance.