Subject	Alternator noise with under drive crank pulley
Posted by	ttsmokin on July 14, 2012 at 11:04 PM
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Message	I had my alternator rebuild by a local shop because it was making a fair loud bearing noise at idle when I had my headlights on and foot on the brake pedal. It has all new bearings and whatever else they do on a rebuild. Except the same thing occurs still, if I have my windows down I can hear a bearing noise that gets louder when I put my foot on the brake or add additional electrical load. When the Z is warming up with a higher idle this noise is not present. Does anyone else hear this with an under drive crank pulley? My thought is perhaps the alternator is working near 100% at idle as bearing noise is more or less normal when alternator is loaded up.
Follow Ups	Alternator noise with under drive crank pulley - ttsmokin 23:04:27 07/14/12 I get the same thing, and I hear others do as well. (n/m) - Stadsport (PHX) 01:05:11 07/15/12 Possible it might be the auto tensioner pulley... - XTZ2 13:14:02 07/15/12 The auto tensioner is just for the timing belt. - Stadsport (PHX) 14:30:49 07/15/12 Re: The auto tensioner is just for the timing belt. - ttsmokin 17:00:06 07/15/12 I don't think it alternator bearings. You say the noise was - zellamay 21:30:08 07/15/12
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