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| | | | Joined: Jul 2007 Posts: 11 New Guy | | New Guy Joined: Jul 2007 Posts: 11 | I have a 12v Delco gen on a 235 in my 49 3100. I'm expericing a discharge indication during increased RPM's and a charge at idle. Just the opposite of what is supposed to happening. This problem is intermentent. Gen is putting out per the spec. wiring is all new and connections tight. Gen has been polrized. Could this be caused by a poor gound of the voltage regulator? Any suggestions? | | | | | Joined: Dec 2006 Posts: 1,464 Shop Shark | | Shop Shark Joined: Dec 2006 Posts: 1,464 | Almost sounds like the ammeter is wired backwards. What does the ammeter show if you just flip the lights on without the engine running? If it shows a charge, reverse those wires. | | | | | Joined: Jul 2007 Posts: 11 New Guy | | New Guy Joined: Jul 2007 Posts: 11 | Good thought however with the engine off when you turn on the lights it shows a discharge | | | | | Joined: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 | Your fan belt is slipping. There is not much contact area for the belt on that setup. It needs to be real tight. Sometimes a longer belt helps.
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne SuperIn the Gallery Forum | | | | | Joined: Jul 2007 Posts: 11 New Guy | | New Guy Joined: Jul 2007 Posts: 11 | Too simple however you are correct and it fixed the issue.Upon further inspection you could see evidence of slipage on the gen pully. Can't see it untill you take the belt off and look for it.
I have to mention to others who read this , the belt was not loose by conventional methods. I'm running a 15/32 width belt. I think I will move to a 17/32 and see if that provides more bite.
Thanks a lot I would have never thought | | | | | Joined: Feb 2004 Posts: 29,792 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,792 | The belt contact area of the pulley could have gotten polished from years of slipping to the point the belt can't get enough traction. Try removing the pulley and have an automotive machine shop beadblast the belt contact area to give the belt something to grab.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | | | | Joined: Jul 2007 Posts: 11 New Guy | | New Guy Joined: Jul 2007 Posts: 11 | Thanks, I just replaced the pully | | |
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