Re: Alternator wiring instalation

Posted by Don Shields On 2014/7/22 22:16:14

Hi Casey,
The amp readings of either generator look good and the battery seems to be holding its own also, assuming no major electrical accessories were on when tested. You might want to see what the output is with the high beam headlamps on (14 amp draw) and the under dash blower fan on high (10 amp draw.) I'd let the car idle for a little while with both accessories on to deplete the battery some and then rev the engine over 1000 rpm and see what the generator is putting out with those loads. If the output rises proportionately then the generator seems to be OK and the cause of the slow crank on a warm restart most likely lies elsewhere.

I note that the specs for '51 call for a 40 amp generator, changing to 45 amps in '52 and up. I'm thinking they did this in anticipation of the return of air conditioning as a factory installed option.