Alternator Shrapnel! - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 12-05-2004, 01:50 PM   #1
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Default Alternator Shrapnel!

Heard some weird noises coming from my engine so I looked under the hood and it appears something is getting scraped away as I see metal shavings shooting out of the pulley system. Im pretty sure its from the alternator but when the car is off and I turn the alternator by hand, it doesnt seem to be rubbing on anything and nothing else does either. Can anyone help?
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Old 12-05-2004, 02:41 PM   #2
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Was it like a clunking or clattering sound? Thats what I have and i've been told my alt is ready to go. If its spitting metal on you're belts then its probably finished.
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Old 12-05-2004, 03:37 PM   #3
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That'* definantly a new one to me....I'd run it until I found it.....Sounds like something is fragging a bearing....just my thought'* though.
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Old 12-05-2004, 05:26 PM   #4
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Check your harmonic balancer pulley for cracking of the rubber behind it. And wash the engine thoroughly to see where the debris is coming from.
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Old 12-05-2004, 10:58 PM   #5
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remove the serpentine belt and check all pulleys for looseness or wobble.A loose pulley can cut into the aluminum housing it'* mounted to if there'* not much clearance.
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Old 12-06-2004, 12:36 AM   #6
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I plan to replace the belt with a Gatorback so I'll go ahead and check things out before I put it on. Thanks for the help guys, hopefully nothing will break.
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Old 12-07-2004, 07:36 PM   #7
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Turns out it was the belt about to fall off! Everything else looked good up top but when I looked at a larger bottom pulley it was near the edge. Once I straightened it out it sounded fine and no more grinding. I went ahead and got me a nice new Gatorback since this belt had some cracks in it and I shoud be putting it on tomorrow. Good times!
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Old 12-07-2004, 09:10 PM   #8
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Than'* a relief. Good find!
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