Show full size 924Board.org
Discussion Forum of 924.org
 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 
 Technical FAQ924 FAQ (Technical)   Technical924 Technical Section   Jump to 924.org924.org   Jump to PCA 924 Registry924 Registry

rear wheel bearings outer spacer ring

 
Post new topic   Reply to topic    924Board.org Forum Index -> General Discussions
View previous topic :: View next topic  
Author Message
Benino  



Joined: 30 Jan 2003
Posts: 502
Location: Vista, CA (San Diego County)

PostPosted: Fri Mar 12, 2021 4:48 am    Post subject: rear wheel bearings outer spacer ring Reply with quote

the inner race on my outer rear wheel bearing cracked. It's been a long time since I did wheel bearings and I don't remember exactly how the outer spacer that gets torqued against the wheel bearing inner race looks. Does anyone have one laying around to compare?

I'm wondering if that indented grove on the surface that presses against the wheel bearing race is supposed to be there of if that's wear.



Just for fun, here's a picture of how the inner race of the wheel bearing looked.

_________________
1980 Porsche 924 N/A USA
1980 Porsche 924 turbo USA
1987 Porsche 944S USA
Back to top
View user's profile Send private message AIM Address Yahoo Messenger MSN Messenger
!tom  



Joined: 28 Aug 2006
Posts: 1912
Location: Victoria, BC Canada

PostPosted: Fri Mar 12, 2021 7:28 am    Post subject: Reply with quote

It's been a long time, but I thought there was a spacer between the inner races.

Nut -> outer ball bearing -> spacer -> inner roller bearing -> spindle
_________________
78 924 NA
5-lug
Back to top
View user's profile Send private message Visit poster's website
Benino  



Joined: 30 Jan 2003
Posts: 502
Location: Vista, CA (San Diego County)

PostPosted: Fri Mar 12, 2021 11:29 am    Post subject: Reply with quote

Here's the stub axle with all three spacers on it.


_________________
1980 Porsche 924 N/A USA
1980 Porsche 924 turbo USA
1987 Porsche 944S USA
Back to top
View user's profile Send private message AIM Address Yahoo Messenger MSN Messenger
924RACR  



Joined: 29 Jul 2001
Posts: 8422
Location: Royal Oak, MI, USA

PostPosted: Sat Mar 13, 2021 1:20 am    Post subject: Reply with quote

That's wear, and if the hardened outer spacer is so worn, I'd recommend replacing ALL of them.

We've snapped a few stub axles racing, and I have come to blame it on worn spacers allowing the nut to thread too far down, resulting in cutting new threads in the end of the stub axle, weakening it and popping the axle at the base of the threads.

Thankfully, we have disc brakes on the rear (M471), and the calipers do a great job of holding the rear wheels on till the car comes in.

Also thankfully - this is a common SuperBeetle part. I just found a source for chromoly spacers, including the tube spacer, and got a set. Haven't installed 'em yet, they go on this spring, but hoping this resolves our axle snapping issues...

Pretty sure this was the set I got:
https://dunebuggywarehouse.com/rear-axle-spacer-set-6-irs.html

Yay for cheap VW parts!!
_________________
Vaughan Scott
Webmeister
'79 924 #77 ITB racecar
'82 931 Plat. Silver
#25 Hidari Firefly P2 sports prototype
Back to top
View user's profile Send private message Send e-mail Visit poster's website
Benino  



Joined: 30 Jan 2003
Posts: 502
Location: Vista, CA (San Diego County)

PostPosted: Sat Mar 13, 2021 2:10 am    Post subject: Reply with quote

Thanks! I appreciate the info. I thought that might be wear but it was so uniform, it was hard to tell. I ordered the dune buggy parts. I'll be off-roading in no time!
_________________
1980 Porsche 924 N/A USA
1980 Porsche 924 turbo USA
1987 Porsche 944S USA
Back to top
View user's profile Send private message AIM Address Yahoo Messenger MSN Messenger
Benino  



Joined: 30 Jan 2003
Posts: 502
Location: Vista, CA (San Diego County)

PostPosted: Tue Mar 23, 2021 1:23 pm    Post subject: Reply with quote

I made a time-laps video of installing the new spacers and wheel bearings. Thought I'd share it.

https://youtu.be/n7dSzYJmGCI
_________________
1980 Porsche 924 N/A USA
1980 Porsche 924 turbo USA
1987 Porsche 944S USA
Back to top
View user's profile Send private message AIM Address Yahoo Messenger MSN Messenger
924RACR  



Joined: 29 Jul 2001
Posts: 8422
Location: Royal Oak, MI, USA

PostPosted: Tue Mar 23, 2021 8:54 pm    Post subject: Reply with quote

Very nice!

Was happy to see the torque wrench come out for the backing plate!
_________________
Vaughan Scott
Webmeister
'79 924 #77 ITB racecar
'82 931 Plat. Silver
#25 Hidari Firefly P2 sports prototype
Back to top
View user's profile Send private message Send e-mail Visit poster's website
Rasta Monsta  



Joined: 12 Jul 2006
Posts: 11556
Location: PacNW

PostPosted: Tue Mar 23, 2021 11:24 pm    Post subject: Reply with quote

Ha, that video is pretty fun
_________________
Toofah King Bad
  • WeiBe (1987 924S) - 931 S3
  • Red (1987 924S) - Pro44/Spec944
  • Shaggy (1980 931) - SOLD (unlucky, but tried hard )
Back to top
View user's profile Send private message Visit poster's website
Display posts from previous:   
Post new topic   Reply to topic    924Board.org Forum Index -> General Discussions All times are GMT + 10 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2005 phpBB Group