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Jerrys 49

Voltage Regulator and Generator HOT with car turned off!

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Ok guys.. I know a few of you have been following my antics with my 1949 Roadmaster... well, I noticed today, that when I hooked up my battery to the 'ol car, the voltage regulator got hot, and the generator was getting warm! Now this was happening with the car OFF and the ignition in the OFF position! I have noticed some sparks coming from the negative battery terminal whenever I hook up the battery, so I was looking everything over today and was about to open up the voltage regulator when I noticed it was hot...

I remember some of the guys mentioning this in one of my previous posts, so perhaps I might be able to fix this problem by messing around with the points on the regulator?? I'm actually thinking this IS the problem of why my battery drains when the car is off overnight.

Jerry

1949 Buick Roadmaster 4 Door

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Take the cover off and you will find that the cutout coil points are stuck closed for one reason or another. Regulator should be replaced as this will cause further and more expensive damage. Feel free to contact me for help or any other questions. I would stock a replacement regulator if interested also.

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Jason is right. This is not uncommon, as the platinum plating wears off of the points, they will arc, and burn together. Best to replace. Dandy Dave!

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In my experiance if the regulator cut out relay is stuck closed the current drain is gross as the generator tries to be a motor. I've seen it melt wires and start fires. Just saying...........Bob

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In my experiance if the regulator cut out relay is stuck closed the current drain is gross as the generator tries to be a motor. I've seen it melt wires and start fires. Just saying...........Bob

Oh yes, and that too! Replace, or you may burn in the fires of....7734. Dandy Dave!

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A friend of mine had a 1957 Chevy with a 4 speed try to go through the garage wall.

His regulator stuck and turned the gen into a motor and with the car in 1st gear, it went against the garage wall.

There is a fuse that you can put on the new regulator in case it happens again.

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