A call for help to the electrical specialists.

[henryford30]

Hello Specialists


I bought my 30' Ford last year. At that time, the vehicle had already been converted to 12 volts.
Now I wanted to replace the 1 wire alternator with a 3 wire alternator.
I had the problem that the charging current could not be measured, the multimeter showed me some values, but no fixed value. The value jumped around wildly when the engine was running.
After converting to the 3-wire alternator with Idiot Light, the value on the multimeter jumped around just as wildly again. When the engine is not running, the device shows 12.7 volts.
I tested the alternator with another battery on the workbench with the idiot light. Everything worked, the charging voltage of 14.4 volts could be read perfectly.
another thing comes to mind, I also had problems with the ignition flashing so that I could not determine the ignition timing.
Could it be that an electrical component is spitting into my electrical system?
Unfortunately I have no idea, I'm at a complete loss.

Thank you in advance, Best regards
Joe