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7040 Alternator light flashing
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jah72577 View Drop Down
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Joined: 07 May 2011
Points: 3 		Post Options Post Options   Thanks (0) Thanks(0)   Quote jah72577 Quote  Post ReplyReply Direct Link To This Post Topic: 7040 Alternator light flashing
    Posted: 07 May 2011 at 7:57pm
I just bought a 1975 7040 with power director after I started using it the alternator or "Gen" light started flickering. Sometimes I can hear a faint click from behind the dash when it does it too. It progressively got more frequent and then  my batteries were dead when I when to start it. So today got a new alternator and put it in. Got it running and everything seemed fine, no flickering light and the batteries were charging up. Untill a couple hours later it started flickering again! It tends to flicker more often and more brightly when the engine is running fast. Any ideas? I need some advice.
 
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MACK View Drop Down
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Joined: 17 Nov 2009
Points: 7664 		Post Options Post Options   Thanks (0) Thanks(0)   Quote MACK Quote  Post ReplyReply Direct Link To This Post Posted: 07 May 2011 at 10:17pm
Bad connection in wiring. Is the new alt still charging?  MACK
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Points: 3 		Post Options Post Options   Thanks (0) Thanks(0)   Quote jah72577 Quote  Post ReplyReply Direct Link To This Post Posted: 08 May 2011 at 1:55am
I guess its charging, the batteries where not dead when I was donw. How would I know? Which wire?
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Points: 3 		Post Options Post Options   Thanks (0) Thanks(0)   Quote jah72577 Quote  Post ReplyReply Direct Link To This Post Posted: 08 May 2011 at 3:00am

Found out the batteries are draining overnite while it is sitting.
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MACK View Drop Down
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Points: 7664 		Post Options Post Options   Thanks (0) Thanks(0)   Quote MACK Quote  Post ReplyReply Direct Link To This Post Posted: 08 May 2011 at 6:11am
New alt may be bad. Hook a volt gauge to the big post on back of alt, should show 13.5+ volts running.  MACK
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