Alternator pulley bearings replacement

[K7ERG]

Anyone replace the bearings in a AEL/AAN alternator. If so anyone have the bearing sizes?

[AndyP]

Did you ever rebuild yours or did you put a new one on?

I'm currently re-building a 120A AAN alternator and I found some useful sites that helped. I'll post up some links when I get home tonight

[Error404]

Nice one Andy, I'll be interested to see them I have one on the bench to do

[irishs2]

Me too.

[AndyP]

I used this:-

http://www.rangerovers.net/repairdetails/electrical/boschaltrepair.htm

and this

http://www.youtube.com/watch?v=DhjT6qKUOBc

( parts 1 & 2 )

And I ordered the parts from here:-

http://www.woodauto.com/vehicle.aspx

The only problem I've had so far is the 4off screws they warn you about in the first link. Despite using GT85 and an impact driver, 2 of them rounded and I had to drill them out.

[Error404]

Nice one, I'll have a go atmine some time soon
Which parts did you have to replace Andy?

[AndyP]

I've ordered a slip ring, voltage regulator and bearings. I think the slip ring will clean up so I might leave that alone.

[Error404]

Great site that Andy, they've got everything - I was actually dreading this job and trying to find parts - now you've made it all very easy

Here's a list of parts for reference:

http://www.woodauto.com/Unit.aspx?Man=BOSCH&Ref=0123510015

[K7ERG]

Bearings from my 120A alternator from 1997 Audi A6
2.5tdi Quattro

Small bearing - NACHI 199 F3 6203NSE2

Large bearing - NTN SCO3A21LHA

Craig