[C2] Alternator Output
Thread Starter
Instructor
Joined: Jan 2017
Posts: 177
Likes: 22
Alternator Output
How do you check to see what an alternator is putting out? Would it be amps or volts? My amp gauge in my 64 with a good battery shows barely steady on the positive side when under way and when sitting at a signal with the blinker on it pulses from 0 to the slightly negative side in time with the blinker.
Race Director
Joined: Feb 2007
Posts: 15,455
Likes: 8,915
From: northern california
C2 of Year Finalist (track prepared) 2019
Immediately after starting the engine, if you see the Ammeter needle swing sharply to the right (positive) and then gradually return to near zero, you have an indication your Ammeter and your charging system are working.
You can also look at the Voltage generated by the alternator. Easy place to connect your Voltmeter would be at battery (+) and (-) posts. As BigK said, you want around 14.2 Volts.
You can also look at the Voltage generated by the alternator. Easy place to connect your Voltmeter would be at battery (+) and (-) posts. As BigK said, you want around 14.2 Volts.
