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Thread: Alternator Smoking?
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05-01-2005 #1
Full Blown G-Machiner
- Join Date
- Aug 2004
- Posts
- 609
I had a similar problem about a year ago. I made an adjustable heim-end bracket so I could mount a 140-amp 6" case alternator and I did not have the belt tight enough. I ran the shortest v-belt possible to avoid jumping pulleys when I would step into it but I didn't realize how much tighter the tension needs to be between pulleys anytime you significantly decrease the distance between pulleys. Anyway, I starting to notice a faint burning smell but could never find out what it was.
Finally after a week or so, my ignition suddenly started acting up and my volt gauge dropped to 0-I broke the damn alternator belt. So, I put another one on and after only 10 minuted idling, the belt began to smoke right on the alternator pulley! The belt tension was okay I had thought but it was sliding around the pulley more than it was grabbing it and turning it. I He-Man'ed the belt tight with only slight tension and I haven't had the problem since. -Jabin
Gmachinz Sales and Performance
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05-01-2005 #2
Registered User
- Join Date
- Aug 2004
- Location
- Vancouver BC
- Posts
- 159
If its not the belt slipping it sounds like your alternators regulator is kaput. They will then charge at full output and burn up. Either that or your 60A alternator isnt enough to run you car and is working too hard anyhow. Too much tension on the belt will make the bearings scream, 5000rpm is no big deal assuming you have the factory sized pulleys. Get an AVR tester on it. You could even just use a voltmeter and see how many volts its putting out. It should be 14.5V or so, any more than 15V and its probably killing itself.
Cheers.
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