stock alternator bearing

[tb3]

My original low mile alternator still looks good and works good, but the pulley bearing is going south.
 
Anybody replace the bearing in one of these?   
I wonder if just the bearing are still available?

[Steve Wood]

it's a standard bearing.   The front one is easy...don't remember if the rear is a bearing or bushing

[Steve Wood]

you can order them here if not found locally...we have the early style cs144 which seems to be different on the rear bearing which it does have

http://store.alternatorparts.com/cs144-series-alternator-parts-bearings.aspx

[Steve Wood]

and here are pictures from one of my alternators... you can see that the triangular plate retains the front bearing...says I put in a new rear bearing as well

http://www.vortexbuicks-etc.com/alternator.htm

[Pyro6]

Note to self, scribe case to clock the case on disassembly, paper clip thru the rear housing to hold the brushes in on assembly. Just in case it gets overlooked!!!

[tb3]

Thanks pyro!
 
steve,  I see the pn for the rear early style cs144, (# 620004N).
 but which one is for the front? 
 
Do I just buy the part #544 kit that has the front and rear for the cs144?  That pn doesn't clarify late/early model

[Steve Wood]

I don't want to guess wrong so I would call them.  If I knew where to look, I probably have one....smh

I posted the number on tbs.com long ago....

Pictures of how to hold the brushes back on the link I gave you if you do the rear

[Steve Wood]

I think its a timken 203ff but here are napa numbers that Gary posted once  Here's NAPA #'s: front= 62032RSJ, rear 120A= 60002RSJ, 70/85A= BA608

Autozone lists the timken

[Pyro6]

I just checked, Steve, those are still good #'s and available. Our store actually stocks the front bearing. They don't have anything else, but they have that bearing.

[SuperSix]

I'll be buying one of these, soon.

http://www.amazon.com/ACDelco-335-1048-Alternator/dp/B007QBQJHY

[tb3]

is the 335-1048 a 140 amp alternator?

[Steve Wood]

Cadillac model, I think....not sure which delco it is

[tb3]

I need to do some more reading.  I'm contemplating a 140 upgrade.
Steve, I'm trying to think of anything electrical I've added to the car:
ramschargers fans with the relays wire upgrade
fuel hot wire kit
couple aftermarket guages
adding a alky kit.
do you see anyneed for a 140 amp upgrade?

[Steve Wood]

easy way to tell, if you go full throttle and the voltage drops very much, then you don't have enuf alternator.

At idle voltage should be close to 14 and stay above 13.5 under any condition.

That is reading the voltage at the alternator and not on the scan tool.

If your alternator is tired, then you might as well replace it with a 140....basical ly the same price.  the 140 has some minor improvements as it is the second generation CS144

[SuperSix]

Ir's a '96 Caprice police alternator, and yes, 140A. The smaller 105A Impala unit won't fit.