ekennedy21 Posted October 30, 2018 Share Posted October 30, 2018 Trying to confirm if Mack ac’s originally had a 6 or 12 volt starter/ generator system. I have reason to believe it may have been 12, but I would like to confirm. Quote Link to comment https://www.bigmacktrucks.com/topic/54699-ac-starter-generator-voltage/ Share on other sites More sharing options...
41chevy Posted October 30, 2018 Share Posted October 30, 2018 (edited) Mine are all 6 volt, I confirmed it on most of them by checking the light bulb numbers. Stop and tail was # 1158 6 volts. There is room to run a pair of 6 volt Optima batteries in series for added amps. I'm sure some have been changed to 12 over the years. Six volt systems also run bigger cables and wiring than 12. Edited October 30, 2018 by 41chevy Quote "OPERTUNITY IS MISSED BY MOST PEOPLE BECAUSE IT IS DRESSED IN OVERALLS AND LOOKS LIKE WORK" Thomas Edison “Life’s journey is not to arrive at the grave safely, in a well preserved body, but rather to skid in sideways, totally worn out, shouting ‘Holy shit, what a ride!’” P.T.CHESHIRE Link to comment https://www.bigmacktrucks.com/topic/54699-ac-starter-generator-voltage/#findComment-408691 Share on other sites More sharing options...
41chevy Posted October 31, 2018 Share Posted October 31, 2018 Just curious, does your AC still have the reduction starter or the direct drive starter? That does make a difference some what. Quote "OPERTUNITY IS MISSED BY MOST PEOPLE BECAUSE IT IS DRESSED IN OVERALLS AND LOOKS LIKE WORK" Thomas Edison “Life’s journey is not to arrive at the grave safely, in a well preserved body, but rather to skid in sideways, totally worn out, shouting ‘Holy shit, what a ride!’” P.T.CHESHIRE Link to comment https://www.bigmacktrucks.com/topic/54699-ac-starter-generator-voltage/#findComment-408742 Share on other sites More sharing options...
ekennedy21 Posted October 31, 2018 Author Share Posted October 31, 2018 Direct Quote Link to comment https://www.bigmacktrucks.com/topic/54699-ac-starter-generator-voltage/#findComment-408744 Share on other sites More sharing options...
yarnall Posted November 1, 2018 Share Posted November 1, 2018 Mine has a 12 volt battery in it and the lights work. It could have been converted when it was restored in the ‘70’s. I don’t know what kind of starter it has in it. It is a firetruck. Mike. Quote Link to comment https://www.bigmacktrucks.com/topic/54699-ac-starter-generator-voltage/#findComment-408775 Share on other sites More sharing options...
41chevy Posted November 1, 2018 Share Posted November 1, 2018 17 hours ago, ekennedy21 said: Direct Most likely up dated to 12 volt than. Quote "OPERTUNITY IS MISSED BY MOST PEOPLE BECAUSE IT IS DRESSED IN OVERALLS AND LOOKS LIKE WORK" Thomas Edison “Life’s journey is not to arrive at the grave safely, in a well preserved body, but rather to skid in sideways, totally worn out, shouting ‘Holy shit, what a ride!’” P.T.CHESHIRE Link to comment https://www.bigmacktrucks.com/topic/54699-ac-starter-generator-voltage/#findComment-408776 Share on other sites More sharing options...
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