RE: [DML] Possible Alternator trouble and more

["Dave Sontos" <dsontos@xxxxxxxxxxx>]

One reason Johns alternators are rated higher is that his pulley has a
smaller diameter on it which makes the unit spin faster than the standard
unit. This smaller diameter pulley has less surface area for the belt to
contact so you will need to make your fan belt extra tight when using this
alternator. It is possible that the screeching niose you hear is the belt
slipping. Make sure the belt is "dry", no oil or antifreeze spilled on it.

Check the bearings on the unit by loosening and removing the belt. Try
turning the pulley by hand and see how it feels. It should spin freely with
no noise or roughness.

Recheck all of your wiring connections. Loosen, remove, and retighten.

Dave Sontos

-----Original Message-----
From: dmcnews@xxxxxxxxxxxxxxx [mailto:dmcnews@xxxxxxxxxxxxxxx] On Behalf Of
usndmc
Sent: Monday, November 07, 2005 10:28 PM
To: dmcnews@xxxxxxxxxxxxxxx
Subject: [DML] Possible Alternator trouble and more

Everything was working great the last month, until about 5 days ago, I
started noticing that once in a while as I would accelerate, particularly in
1st and 2nd gear, through around 1500-1900 RPMs I would hear a whining
screeching sound like a rusty wheel spinning that needed some lubrication
kind of thing, and coinciding with the noise the voltmeter would dip from
its normal 13.5-14 down to about 12.5 until the noise stopped. It usually
only lasted for about 3-5 seconds. I tried 3 different times in the driveway
manipulating the throttle from the engine to replicate the symptom but could
not.





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