Date: Tue, 16 May 2006 09:47:44 -0400 From: Ben <jimnospamcom> Subject: Re: 1999 9-3 Alternator Pulley Noise
Hi all, I managed to replace both bearing in my alternator. Here's the specs and the how: Car: '99 9-3, manual, with A/C Alternator: 130Amp BOSCH - After removing the alternator off the car, I removed the front pulley nut (24 mm) with an impact wrench. - Pulled the pulley off the shaft with a 2 arm gear press. - Removed the black cover off the back of the alternator and the brush holder as a unit (2 screws). - Removed the 4 bolts that connect the 2 halves of the alternator together. - Pried off the 2 half's (mine were a bit rusty, took some doing). - Removed 4 small screws that hold the big bearing in the front (pulley side). Depressed the bearing. - Used the 2 arm puller to remove (very carefully) the small bearing at the back (you have to remove a plastic cover off the bearing first). THIS is the bearing that was making noise in my alternator. - Pressed back both bearings. - Cleaned as much as I could all the parts and assembled back in reverse order. _ Installed on car, and presto, it seems to be working ok (so far 500km). TOTAL cost = $10 CAD for the bearing at the local alternator rebuilder. DEALER cost, if I would have had it in with a new alternator = 1,200 (parts) + 300 (labor) = 1,500 DEALER cost, with rebuild alternator = 400 + 300 = 700 Hope this helps, I can send links to reference sites on the web, if needed. Cheers, Ben Dave Hinz wrote: > On Thu, 26 Jan 2006 14:01:56 -0500, Ben <jimnospamcom> wrote: > >>Fred W wrote: > > >>Not to beat it over the head, but does anyone have any experience >>opening an alternator and changing just the bearing? > > > Yup, if you're comfortable doing small motor repair, there's really > nothing surprising. > > >>I use to do it for Renault in Europe, not easy, but very doable. The >>cost difference (if you don't count your work) was big (i.e. rebuilt >>alternator = $200US, bearing = $5US). > > > Exactly. I've got one apart on the bench right now for my 99Turbo, on > the theory that the one I have is fine, just gritty. We'll see how that > goes... > >
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