ADVrider

Go Back   ADVrider > Bikes > Old's Cool > Airheads
User Name
Password
Register Inmates Photos Site Rules Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
Old 11-17-2011, 10:30 PM   #1
backdrifter OP
Wannabe rider
 
backdrifter's Avatar
 
Joined: Jan 2005
Location: Belleville, IL
Oddometer: 1,363
Any tricks for getting steering stem bearing races out of an airhead?

As the title says - I'm having trouble. The Clymer says to use a punch from the other end and gently tap it out. Problem is, the stem is curved and the races are recessed in a way such that you could never reach them with a straight tool.

Compounding the issue is the fact that I didn't remove them before going to the powdercoater and now I have some overspray that is helping to hold them in.

Any suggestions would be greatly appreciated!
__________________
"We are very good at preparing to live, but not very good at living."
-Thich Nhat Hanh

1973 BMW R60/5:
http://www.advrider.com/forums/showthread.php?t=608166

backdrifter screwed with this post 11-17-2011 at 10:42 PM
backdrifter is offline   Reply With Quote
Old 11-17-2011, 10:41 PM   #2
ontic
 
Joined: Jul 2008
Location: Melbourne
Oddometer: 1,067
welding a bead around the center of the race is the trick I've heard, once the bead cools the race shrinks a little and it is an easy out- however it would definitely be preferable to do this before a powdercoat I rekon.
Someone was just telling me about a good tool for this job, I'll shoot them a pm to find out what it was.

I haven't done this myself yet, but from the sound of it I would probably just try to make a good bent punch/drift to get it done.
__________________
1974 R90/6
1981 R80G/S
1994 XLR250R
ontic is online now   Reply With Quote
Old 11-17-2011, 10:53 PM   #3
elite-less
As above, so below
 
elite-less's Avatar
 
Joined: Dec 2009
Location: The Puget Sound Convergence Zone
Oddometer: 539
Easy... get this tool from CycleWorks.

IMG_3966
__________________
Slash 5 Revive
elite-less is offline   Reply With Quote
Old 11-17-2011, 10:56 PM   #4
Box'a'bits
In need of repair
 
Box'a'bits's Avatar
 
Joined: Sep 2008
Location: Wellington, New Zealand
Oddometer: 2,149
Quote:
Originally Posted by ontic View Post
welding a bead around the center of the race is the trick I've heard, once the bead cools the race shrinks a little and it is an easy out- however it would definitely be preferable to do this before a powdercoat I rekon.
Someone was just telling me about a good tool for this job, I'll shoot them a pm to find out what it was.

I haven't done this myself yet, but from the sound of it I would probably just try to make a good bent punch/drift to get it done.
The welded bead works well. And it still doesn't move, gives you something to hammer on.
__________________
My '91 R100GS thread is here
My Ride photos are here

It's just better when there's twins involved....
Box'a'bits is offline   Reply With Quote
Old 11-17-2011, 11:22 PM   #5
ontic
 
Joined: Jul 2008
Location: Melbourne
Oddometer: 1,067
Eek

Quote:
Originally Posted by BMWRSNUT View Post
The welded bead works well. And it still doesn't move, gives you something to hammer on.
Well if that is all it is doing then I'd just weld a chunk of metal in the middle of the race and really give myself something to hammer on.
__________________
1974 R90/6
1981 R80G/S
1994 XLR250R
ontic is online now   Reply With Quote
Old 11-17-2011, 11:28 PM   #6
Box'a'bits
In need of repair
 
Box'a'bits's Avatar
 
Joined: Sep 2008
Location: Wellington, New Zealand
Oddometer: 2,149
Quote:
Originally Posted by ontic View Post
Well if that is all it is doing then I'd just weld a chunk of metal in the middle of the race and really give myself something to hammer on.
Nah, it shrinks the bearing & most times it just drops out. But I was thinking this one might be glued in with powder coat
__________________
My '91 R100GS thread is here
My Ride photos are here

It's just better when there's twins involved....
Box'a'bits is offline   Reply With Quote
Old 11-18-2011, 06:07 AM   #7
SUVslayer
Studly Adventurer
 
SUVslayer's Avatar
 
Joined: Aug 2003
Location: south of stinkfoot
Oddometer: 779
When I did them on my GS, I ended up taking a dremel to the races and (carefully) cutting them out.
SUVslayer is offline   Reply With Quote
Old 11-18-2011, 06:46 AM   #8
Airhead Wrangler
Adios Mexico
 
Airhead Wrangler's Avatar
 
Joined: Mar 2008
Location: Back in Seattle, FINALLY
Oddometer: 6,430
Get an old large flathead screwdriver and bent the tip over about 30-45 degrees and then you can hammer it out from the other side no problem. The cycleworks tool does work nicely also.
__________________
R80ST Gets The HPN Treatment
Seattle to TDF on an airhead

Current rides: HPN #834, '93 R100GSPD "red rocket", '73 R75/5 Toaster mongrel, '80 Ducati Pantah 500SL, '92 DR350, '67 Honda SS50, '80 Honda Chaly.
Airhead Wrangler is offline   Reply With Quote
Old 11-18-2011, 06:56 AM   #9
backdrifter OP
Wannabe rider
 
backdrifter's Avatar
 
Joined: Jan 2005
Location: Belleville, IL
Oddometer: 1,363
Thanks for all the responses. Unfortunately, I don't have a welder, but I could get my hands on one if that's the best way to go.

I did try cutting the top race out. I actually cut a section about 1/2" out, hammered on it forever (from the top) with a punch and finally got it to come flying out. The rest of the race is still absolutely glued in there.

I can try a bent punch or screwdriver from below, but there is barely a lip at all at the bottom of the race, so whatever I use will need to be a sharp tool.

The Cycleworks tool looks nice indeed, but I'm hoping to have these out before one of those could arrive at my doorstep!
__________________
"We are very good at preparing to live, but not very good at living."
-Thich Nhat Hanh

1973 BMW R60/5:
http://www.advrider.com/forums/showthread.php?t=608166
backdrifter is offline   Reply With Quote
Old 11-18-2011, 11:24 AM   #10
disston
ShadeTreeExpert
 
disston's Avatar
 
Joined: Mar 2011
Location: Silver Spring, Md
Oddometer: 8,965
Quote:
Originally Posted by Airhead Wrangler View Post
Get an old large flathead screwdriver and bent the tip over about 30-45 degrees and then you can hammer it out from the other side no problem. The cycleworks tool does work nicely also.
This is the way I did this job years ago. Go to hardware store and buy a cheap screwdriver for this. It will be trash when you finish and gets thrown away. Use the old bearing race as a tool to set the new bearing into the frame head, it is recessed. I think some pull the bearing in with action of the slotted nut on the triple clamp. I don't like to do that but it might be OK.
disston is offline   Reply With Quote
Old 11-18-2011, 11:50 AM   #11
backdrifter OP
Wannabe rider
 
backdrifter's Avatar
 
Joined: Jan 2005
Location: Belleville, IL
Oddometer: 1,363
Thanks guys. I went out and took another look. The lip on the underside (if coming from the other end of the stem) of the race was tiny. I didn't think I would be able to make a tool sharp enough to get in there.

So, I made a few passes with a cutting wheel on a dremel, and then sharpened a crappy flat head screw driver and used a hammer to wedge it in between the race and the steering stem from the top and pop the pieces out. It was a pain, but it worked.

On to the next problem!
__________________
"We are very good at preparing to live, but not very good at living."
-Thich Nhat Hanh

1973 BMW R60/5:
http://www.advrider.com/forums/showthread.php?t=608166

backdrifter screwed with this post 11-18-2011 at 01:33 PM
backdrifter is offline   Reply With Quote
Old 11-18-2011, 01:24 PM   #12
simonboxeproject
Adventurer
 
Joined: Sep 2009
Location: UK
Oddometer: 84
welded

Hi If it is of help, I went the weld way.
I cut off a short length of 1/2" x 1/8" mild steel, long enough to sit across the race but not fall through then gave it a spot with my MIG on either end, then with a long drift knocked it out. once out did the same for the other end bearing.
Worked well came out easy.
simonboxeproject is offline   Reply With Quote
Old 11-19-2011, 04:27 AM   #13
Martian
Beastly Adventurer
 
Joined: Sep 2007
Location: Elmdale, Kansas, USA
Oddometer: 1,105
I used what is called a "cat's paw". Its normally used for pulling nails, but fit into the bearing and hooked the back edge quite nicely. I was able to pry out the race after using a heat gun to warm the stem.

__________________
Tom
'93 R100R
'02 F650GS sold)
'93 R100GSPD(sold)
http://frommars.smugmug.com
Martian is offline   Reply With Quote
Old 11-19-2011, 05:32 AM   #14
bikerfish
flyfishandride
 
Joined: Aug 2010
Location: western pa
Oddometer: 1,509
put the new races in the freezer before installing.
bikerfish is offline   Reply With Quote
Old 11-19-2011, 05:42 AM   #15
brittrunyon
R 100 GS F 650 GS
 
brittrunyon's Avatar
 
Joined: Oct 2010
Location: The High Desert of New Mexico
Oddometer: 474
Quote:
Originally Posted by backdrifter View Post
Thanks guys. I went out and took another look. The lip on the underside (if coming from the other end of the stem) of the race was tiny. I didn't think I would be able to make a tool sharp enough to get in there.

So, I made a few passes with a cutting wheel on a dremel, and then sharpened a crappy flat head screw driver and used a hammer to wedge it in between the race and the steering stem from the top and pop the pieces out. It was a pain, but it worked.

On to the next problem!
What's the next problem?...................The bearings?
__________________
1992 R 100 GS (ZED)
2007 F 650 GS

My Motorcycle Videos & More @ http://vimeo.com/user2721333
No Rules Photography @ http://brittrunyon.com/
brittrunyon is offline   Reply With Quote
Reply

Share

Thread Tools Search this Thread
Search this Thread:

.
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump


Times are GMT -7.   It's 03:54 PM.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright ADVrider 2011-2014