Ivylog wrote:
Sounds like they did not upgrade the Chevy alternator to a heavy duty 300 amp unit... OEM is 165 so after an hour they stop it from charging the house batteries because of excessive heat concerns... burning the alternator up, not overcharging the batteries. I would not bypass this system until or go to a BIRD system until I was sure I had a much bigger alternator than OEM.
.snip.
GM specs say the alternator on the Express 4500 cutaway chassis is 145 amps. It only has the chassis battery, plus the house has two (2) Group 27 12v house batteries. I wonder how many amps would be sent, for how long?
I should look to see if I can tell if the alternator is stock or upgraded. But does it matter in the above case?
