[Bulk] [Gmecm] voltage regulators

[Jason M.]

Any tips for taking it apart with out breaking the brushes?  I've had a 
couple of the smaller CS alternators apart before to fix little problems, 
like the charging post coming loose.  They would just slide apart.  What 
actually broke the brushes on this one was a plastic bearing retainer.

Both of the bearings were stuck on this one (rust).  Cut some notches in the 
outer race of the rear bearing to get a puller on it then cranked hard with 
a 1/2'' rachet.  Felt about the same as an over tightened lug nut.  The 
Front bearing I tried the same thing on but eneded up cutting it off.  On 
the inner race I ground it 3/4 the way through then cracked it with a 
chisel.

So far I've had 3 alternator failures on different GM products.  1st was 
brushes/contacts worn down to nothing on a camaro with 200,000 miles.  2nd 
was a voltage regulator, don't know the complete history of the car but 
appeared the alternator was on there for a while, car had 220,000 and the 
junkyard 1973 olds engine was put in ~1984 when the car had ~10,000 miles. 
3rd, the diodes on the one I'm messing with now.

Jason.
----- Original Message ----- 
From: <bcroe at juno.com>
To: <gmecm at diy-efi.org>
Sent: Sunday, May 14, 2006 2:33 AM
Subject: [Bulk] [Gmecm] voltage regulators


>I replace the front bearing at 60,000, the rear and the brushes
> at 120,000.  My expectation is that this will avoid failures, but
> things like diodes or regulators can happen.  I never had a
> problem with brushes breaking, but a rusted/stripped shaft
> nut or a front bearing that won't slide off can happen.
>
> Bruce Roe