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Fattie
I'd roll it
Joined: November 27, 2005
Posts: 5582
Location: louisiana
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 Posted: Wed Dec 16, 2009 9:47 pm Post subject: Alternator Bearings (edit:Maybe Not) |
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Mine started whining few days ago..sound like the one at the fan... if the bearing/bearings aren't F'ed up... can they be repacked with say...hi-temp bearing grease ?
Oh
Does anyone have a exploded diagram of the alternator
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Last edited by Fattie on Fri Dec 18, 2009 7:18 pm; edited 3 times in total |
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Viande
Samba Member
Joined: August 14, 2008
Posts: 1719
Location: GA
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Fattie
I'd roll it
Joined: November 27, 2005
Posts: 5582
Location: louisiana
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| Posted: Thu Dec 17, 2009 12:12 am Post subject: |
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thanks Viande
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Bruce
Samba Member
Joined: May 16, 2003
Posts: 17705
Location: Left coast, Canada
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| Posted: Thu Dec 17, 2009 12:40 am Post subject: |
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If the bearing is making noise, it is gone. No amount of grease is gonna bring it back. Take the bearings down to your local bearing store and buy new ones. It'll cost you less than $15.
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| overheard at the portland Swap Meet... wrote: |
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Fattie
I'd roll it
Joined: November 27, 2005
Posts: 5582
Location: louisiana
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| Posted: Thu Dec 17, 2009 12:55 am Post subject: |
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does anyone know the part numbers for bearing that will work........ pulley and fan side... (I may as well replace both)
I read some of the bearings that work part #'s are the same as some vehicles idle pulley bearing and pilot bearings
I also read the VW generator and alternator bearings are the same...
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Fattie
I'd roll it
Joined: November 27, 2005
Posts: 5582
Location: louisiana
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| Posted: Thu Dec 17, 2009 2:23 am Post subject: |
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........are the front/rear bearing the same ?
Has anyone done a write up with pix ? ... link me please
...sorry for all the questions... just want to jump in this prepared and get it done quickly as possible with no surprises
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BUGGED11111
Samba Member
Joined: February 03, 2006
Posts: 1828
Location: Oregon
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Fattie
I'd roll it
Joined: November 27, 2005
Posts: 5582
Location: louisiana
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| Posted: Thu Dec 17, 2009 1:20 pm Post subject: |
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yes.. I contacted him last night and he replied... I'll be getting a pair from him 
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Fattie
I'd roll it
Joined: November 27, 2005
Posts: 5582
Location: louisiana
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| Posted: Thu Dec 17, 2009 9:39 pm Post subject: |
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.......does anyone know the actual bearing dimensions or part numbers ?
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Viande
Samba Member
Joined: August 14, 2008
Posts: 1719
Location: GA
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| Posted: Thu Dec 17, 2009 11:05 pm Post subject: |
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| Fattie wrote: |
| .......does anyone know the actual bearing dimensions or part numbers ? |
021 903 221 E Pulley end. 111 903 221 A Fan end.
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Bobby
New Items In Stock, NOS & OEM Seals,Parts and Terminals
My Feedback Here
The bitter taste of poor quality lingers long after the joy of the cheap price fades away. |
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Fattie
I'd roll it
Joined: November 27, 2005
Posts: 5582
Location: louisiana
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| Posted: Thu Dec 17, 2009 11:59 pm Post subject: |
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15mm ID x 35mm OD x 11mm Thick
....this is the same for both correct ?
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Bruce
Samba Member
Joined: May 16, 2003
Posts: 17705
Location: Left coast, Canada
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| Posted: Fri Dec 18, 2009 12:24 am Post subject: |
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| Fattie wrote: |
| ....this is the same for both correct ? |
You are doomed to fail. Take the thing apart and take the old bearings to your local bearing store. You are guaranteed to get the right bearings for what your generator needs.
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| overheard at the portland Swap Meet... wrote: |
| ..... a steering wheel made from a mastadon tusk..... |
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Viande
Samba Member
Joined: August 14, 2008
Posts: 1719
Location: GA
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| Posted: Fri Dec 18, 2009 12:30 am Post subject: |
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| Fattie wrote: |
15mm ID x 35mm OD x 11mm Thick
....this is the same for both correct ? |
No sir. Pulley end is 17mmIDx40mmODx12W. The dimensions you listed are for the fan end. You also need to be careful in which bearing you spec. There are many that have the correct dimensions but are incorrect for the application. If you are going with SKF you will want to ensure you get the RS or Z series bearing. Good luck
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Bobby
New Items In Stock, NOS & OEM Seals,Parts and Terminals
My Feedback Here
The bitter taste of poor quality lingers long after the joy of the cheap price fades away. |
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Fattie
I'd roll it
Joined: November 27, 2005
Posts: 5582
Location: louisiana
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| Posted: Fri Dec 18, 2009 1:16 am Post subject: |
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Thanks again Viande
..I hope thats the same for the new style 1 post alternators... yes ?
| Bruce wrote: |
| Take the thing apart and take the old bearings to your local bearing store. |
great idea...but before I take it apart I want to have both bearing in hand ready to go... I hate stopping in the middle of a project to run to the parts store..then find out they gots to order it...or even if got it in stock...I lose my momentum and might blow off putting it back together for the day..... know what I mean
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Fattie
I'd roll it
Joined: November 27, 2005
Posts: 5582
Location: louisiana
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| Posted: Fri Dec 18, 2009 1:36 pm Post subject: |
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Little update...
I'm on my lunch break... I swung by mom dukes and took the belt off...I have the BMD serpentine system... I spun the alt and didn't really make a sound...the pulley/shaft had no play that I could feel by hand... now the idler pulley for the BMD kit is another story...it has some play and when spun sounds loudly like dry bearings.... I'm gonna replace the ones in the BMD idler pulley 1st... reinstall the belt start her up...and see where I'm at... I hope it's it...cause that will be less hassle to replace
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Last edited by Fattie on Fri Dec 18, 2009 7:53 pm; edited 1 time in total |
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Cusser
Samba Member
Joined: October 02, 2006
Posts: 33584
Location: Hot Arizona
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| Posted: Fri Dec 18, 2009 1:58 pm Post subject: |
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| Fattie wrote: |
Little update...
I'm on my lunch break... I swung by mom dukes and took the belt off...I have the BMD serpentine system... I spun the alt and didn't really make a sound...the pully/shaft had no play that I could feel by hand... now the idler pulley for the BMD kit is another story...it has some play and when spun sounds loudly like dry bearings.... I'm gonna replace the ones in the BMD idler pulley 1st... reinstall the belt start her up...and see where I'm at... I hope it's it...cause that will be less hassle to replace |
Aha - this is the first time you mentioned that you have a non-stock pulley system - one must always disclose full information when asking for help, no detail is too small. Then that idler bearing is likely what's bad. Remember: always fix first what you KNOW is bad !!!!
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1970 VW (owned since 1972) and 1971 VW Convertible (owned since 1976), second owner of each. The '71 now has the 1835 engine, swapped from the '70. Second owner of each. 1988 Mazda B2200 truck, 1998 Frontier, 2014 Yukon, 2004 Frontier King Cab. All manual transmission except for the Yukon. http://www.thesamba.com/vw/forum/album_page.php?pic_id=335294 http://www.thesamba.com/vw/forum/album_page.php?pic_id=335297 |
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gerg
a.k.a. 6volt65
Joined: April 25, 2003
Posts: 5454
Location: Monroe, LA
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| Posted: Fri Dec 18, 2009 6:05 pm Post subject: |
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I would never run the same bearings they come with if you drive your VW any reasonable distance. The bearings look like the came out of a roller skate or skate board.
Mine were replaced with bearings almost twice as big, and freaking stout - but in the end I went back to a stock system. I was just lucky mine stayed together to the hotel that night or I'd have been F'd.
Thanks again Doug & Howard if you're reading . . . see you guys in a couple of weeks in Havasu and I won't be driving all day Saturday to parts stores! 
New bearings on shaft, old races in middle, pulley before machining.
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Gerg
. . . I got 99 problems and my bus ain't one . . .
'65 Sunroof Beetle
'65 Vert
'60 Singlecab |
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Fattie
I'd roll it
Joined: November 27, 2005
Posts: 5582
Location: louisiana
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| Posted: Fri Dec 18, 2009 6:55 pm Post subject: |
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| Cusser wrote: |
| Aha - this is the first time you mentioned that you have a non-stock pulley system |
oops ... I figured it was irrelevant
| www.bmdpulleys.com wrote: |
| We at BMD PULLEYS are always striving to improve our products. We have re-designed our roller with bigger bearings that have been proven to last longer then the old design. |
So I sent them an eMail to try my luck:
| Quote: |
Contact: Fattie -
> I got one of your systems couple years back...the idler bearing went out recently....what can I do about this...
-thanks |
........and they're reply
| Quote: |
Contact: [email protected]
send me your name and address and we will send one out to you.
-chris |
BMD is the snit ! 
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Last edited by Fattie on Fri Dec 18, 2009 7:23 pm; edited 2 times in total |
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gerg
a.k.a. 6volt65
Joined: April 25, 2003
Posts: 5454
Location: Monroe, LA
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| Posted: Fri Dec 18, 2009 7:03 pm Post subject: |
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They did the same for me on my first system. I just didn't want to email them every time they went out.
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Gerg
. . . I got 99 problems and my bus ain't one . . .
'65 Sunroof Beetle
'65 Vert
'60 Singlecab |
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Fattie
I'd roll it
Joined: November 27, 2005
Posts: 5582
Location: louisiana
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| Posted: Fri Dec 18, 2009 7:18 pm Post subject: |
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So there newer larger bearing version any better ?
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