Over the last couple of months, I have noticed that my 6 volt POS GRD alternator has been taking more RPM to self energize.
Since I did the trans work last week which necessitated a lot of wiring work and the fact that I added a #8 wire from the case of the alternator to the metal dash, I have noted some strange things going on with my AMP gauge.
It has been reading almost no charge even when everything is on. The lights are dim and come up when I rev the engine, but again it is taking a lot of RPM to do it.
If I pull the battery cable while running I need to run up the RPM a lot to get the lights and heater up on full.
If I run all the big electrical users, head lights, radio, heater, and radiator fan, and come to a stop, I can kill the engine as the voltage at idle is below what the coil needs.
Has anyone seen this kind of subtle partial failure of an alternator before ?
I am driving south from SF tomorrow for a car show and I am wondering if I am setting myself up for trouble if it completely goes on that drive. I am charging my spare Optima 6V and taking it along just in case.
Best, James