Author Topic: Alternator Idler Pulley Bearing Replacement  (Read 4422 times)

October 03, 2008, 08:55:00 pm

vanbcguy

  • Administrator
  • Veteran

  • Offline
  • *****

  • 2831
  • Personal Text
    Vancouver, BC
Alternator Idler Pulley Bearing Replacement
« on: October 03, 2008, 08:55:00 pm »
I had the lovely "death rattle" coming from my alternator idler pulley... My motor is an A2 1.6TD with an AC compressor so it's got the alternator being driven off of the AC compressor pulley.

The thing was really getting to me, but the only place I'd been able to find a replacement was like $65 for a stupid pulley.  I mean, come on!!

Saw elsewhere that the bearing in there was actually fairly common - it's a "6202 2RS" which is a common bearing used in electric motors.  Well, I managed to find a sack of them online for cheap!

Replaced mine today using a socket and a bench vise as a press - worked great.  I found a socket about the same diameter as the outer part of the bearing and used it like a drift to press the bearing out the other side.  Used the same socket to press the new bearing back in (hint: your injector socket is about the right size!) Took me about 15 minutes all told...

I now have a nice QUIET alternator idler pulley, and a bunch of spare bearings if anyone needs one.   :D


Bryn

1994 Jetta - AHU M-TDI - Jezebel Jetta
2004 Jetta Wagon - 1.8T - Blitzen

Reply #1October 03, 2008, 10:17:26 pm

zukgod1

  • Veteran

  • Offline
  • ***

  • 2817
Alternator Idler Pulley Bearing Replacement
« Reply #1 on: October 03, 2008, 10:17:26 pm »
PM me a price shipped to 84651 will ya?

Great find BTW.
dan

99 Golf TDI (now CNG powered) , 82 TD Caddy

Reply #2March 15, 2010, 03:20:07 pm

fck

  • Junior

  • Offline
  • **

  • 70
Re: Alternator Idler Pulley Bearing Replacement
« Reply #2 on: March 15, 2010, 03:20:07 pm »
this thread has come in handy! :D

Reply #3March 15, 2010, 10:33:43 pm

theman53

  • Global Moderator
  • Veteran

  • Offline
  • ****

  • 7835
  • Personal Text
    Holmes County Ohio - North Central Ohio
Re: Alternator Idler Pulley Bearing Replacement
« Reply #3 on: March 15, 2010, 10:33:43 pm »
I replaced mine, but it still made noise. I had yet another one of my Amish customers press a common bearing in less than 1 minute.
 It was the alt. :'(

Reply #4February 15, 2012, 01:31:23 am

Baron VonZeppelin

  • Guest
Re: Alternator Idler Pulley Bearing Replacement
« Reply #4 on: February 15, 2012, 01:31:23 am »
If you need one, or more, of these bearings - search eBay using

6202 2RS

as the search criteria.

I just bought a pair - with shipping - $3.22 - Buy It Now option.

Just a helpful hint for those of us not living within the confines of highly cosmopolitan areas.

Reply #5February 15, 2012, 01:46:02 am

bajacalal

  • Veteran

  • Offline
  • ***

  • 1025
Re: Alternator Idler Pulley Bearing Replacement
« Reply #5 on: February 15, 2012, 01:46:02 am »
Any good auto parts place should have a single bearing or should be able to get you one.

IIRC, the NAPA number is 62022RSJ. It means a 6202 bearing with rubber seals on both sides. A 6202 RSJ has only one sealed side. The same formula should work for any given ball bearing (6203, 6204). They should also have a book that lists dimensions.

Reply #6February 16, 2012, 01:37:04 am

fatmobile

  • Veteran

  • Offline
  • ***

  • 2386
    • http://www.geocities.com/vwfatmobile/
Re: Alternator Idler Pulley Bearing Replacement
« Reply #6 on: February 16, 2012, 01:37:04 am »
I could have gotten a $3 bearing at a local bearing shop,..
 but I went with something more reliable,.. cost me about $11.
Tornado red, '91 Golf 4 door,
with a re-ringed, '84 quantum, turbo diesel, MD block