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I ask because my #1 daughter just paid $400 for an alternator plus whatever for the tow. Now she's going to hand the shop another $50 for the core so I can have a look at why the brushes I put in at 300K are worn at 350K, if that was indeed the failure mode"
I had one of my brushes ground down so far it fell out of the holder. This after 30K on an I had rebuilt...new Bosch regulator/brush package...and bearings.
I drove it maininly highway miles 65-80mph.
I believe the slip ring that the brushes ride on wore them out...the alt had 130K on it.
it stranded me in Hagerstown...luckly I got off I70 and into a Mercedes dealer parking lot before the battery died....my hint to get off the highway was all my gages went to 0 position and the cassette stopped. ...long story but I got a new reg/brush pack at a VOLVO stocked pick and pull....open on Sunday no less.
Older alts burn thru brushes.
Alt parts
http://www.wagneralt.com/visions/units.asp?ID=51416
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