dogboy73
enthusiast
Reged: 19/04/2009
Posts: 343
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Having a real hard time getting the old bearings out of my swingarm of my Isis. I phoned the shop where I bought the bike from to order the replacement bearings. Whilst on the phone I asked for some advise on removing the old ones. The guy in the shop said it was a difficult job & the best way was to try & drift the old bearings out using a socket. Tried this & I'm not getting anywhere. Those bearings are not budging. bit shot of ideas on this one. Anyone got any advice? Cheers.
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http://isisreborn.blogspot.com/
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greeneye
Carpal \'Tunnel
Reged: 19/04/2008
Posts: 5244
Loc: shitsville
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this is something you really dont want going wrong, imo you should take the part to your lbs and get them to do it.
i cant see it costing a great deal.
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dogboy73
enthusiast
Reged: 19/04/2009
Posts: 343
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I'm not convinced my LBS could do a better job on this than i could ..... and I don't know what I'm doing!! The problem is there is not a dedicated tool for this job so they would probably have to make it up as they went along just like I'm having to do. But your right, It's not something I want to go wrong 
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http://isisreborn.blogspot.com/
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MTBLeague
Pooh-Bah
Reged: 23/05/2007
Posts: 2173
Loc: What is normal?
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Not an easy job honest.
I have done it with medium sized bench vice old rags ( saveing the paintwork) and varous sizes from a car socket set.
Even with this it was hard to push out the old, then carefully line up the new and push them in, when I say push it ain't gentle.
Leave it to a LBS if they Fkuc it up they have to put it right, which will cost them a lot more than you will be paying them. I had to this because my local lbs says they do not have the tools for the job.
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The Path of least resistance is easier to follow............ when things are -Back to normal.... ...ish.
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greeneye
Carpal \'Tunnel
Reged: 19/04/2008
Posts: 5244
Loc: shitsville
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yes thats just right MTB. if they cock it up they replace it, if yo cock it up then you replace it.
think about it.
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dogboy73
enthusiast
Reged: 19/04/2009
Posts: 343
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Quote:
I had to this because my local lbs says they do not have the tools for the job.
My shop say the same, which is why I'm not that confident about letting them near it.
I've got one idea that I'm going to try. This is to get a large rectangle piece of wood, knock in some blocks to make a 'socket' for the frame to sit in & hold it in place. I'll then drill a hole right through the wood just slightly bigger than the size of the bearing. I should then be able to knock the bearing through the wood with a socket whilst the frame is being held in position by the wooden blocks. The main piece of wood will support the frame to reduce the risk of stressing ..... well it sounds okay in theory!!
To get the bearings back in I was thinking of linging the bearing up & then simply squeezing it in using a vice with 2 wooden blocks covered in rags either side of the frame to protect it & help keep things lined up.
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http://isisreborn.blogspot.com/
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MTBLeague
Pooh-Bah
Reged: 23/05/2007
Posts: 2173
Loc: What is normal?
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One other suggestion find a not so local bike shop that has the skills and tools for the job, I had to do this with 4 sets thats 8 bearings, did not enjoy it one bit and it took ages to do it carefully, much longer than say phoning around and going to and from a not-so-local-bike-shop!
Oh and needs doing again on the old bike, boo hoo. 
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The Path of least resistance is easier to follow............ when things are -Back to normal.... ...ish.
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yoon
stranger
Reged: 20/06/2009
Posts: 4
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Try this, Get one socket big enough for the bearing to go into on one side. put a long bolt through the whole lot, you may need a washer or two in the right place. as you tighten a nut onto the bolt it should pull the bearing out. It's better than hammering. Also try heating the whole thing with a blowtorch (not too much!) then Quench with WD40 to break the hold the corrosion has if it's corroded in.
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Rampage
newbie
Reged: 15/08/2008
Posts: 37
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Obviously your trying to remove them from the inside so they come out of the outside?
How solid is the part of the frame your working on?
I think the post above is the best idea for removing.
When you put new ones back in, find a piece of wood that will fit between the frame where the bearings fit, drill a hole through the wood in line with the holes where the bearings would be. Place bearings into place. Push a threaded rod (or long bolt) through the whole lot, and put a washer and nut on each end, so it should be (nut, washer, bearing, frame, wood with hole through it, frame, bearing, washer, nut (or bolt head).
You should then be able to tighten the nuts to pull/push the bearings into place. The piece of wood is to stop the frame bending.
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dogboy73
enthusiast
Reged: 19/04/2009
Posts: 343
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Good suggesionts & both sound better than hammering. A sort of headset press for the bearings. Briliant 
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http://isisreborn.blogspot.com/
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dogboy73
enthusiast
Reged: 19/04/2009
Posts: 343
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Something like this to get the bearings out? (as decribed by Yoon)
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http://isisreborn.blogspot.com/
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greeneye
Carpal \'Tunnel
Reged: 19/04/2008
Posts: 5244
Loc: shitsville
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i had my swingarm resprayed on my old bike and had to go through this, unfortunatly i cant remember how i done it.
i do remember leaving a bearing outer in the frame which was a night mare to get out so be very carefull you dont do the same.
do some home work before heating your frame, it can alter the characteristic's in the metal and may end up weaker.
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dogboy73
enthusiast
Reged: 19/04/2009
Posts: 343
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Good news. The contraption/DIY tool I made based on that diagram worked a treat! I didn't bother heating up the frame. Just give the bearing a good spray of DW40 & left it for a while. When I tried using the tool I'd made the bearing pushed out perfectly with no damage to the frame at all. I didn't even damage the paint. Not that it matters because I'm getting it re-coated anyway. But it's good to know this technique works because I could probably use something similar to push the new bearings back in.
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http://isisreborn.blogspot.com/
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greeneye
Carpal \'Tunnel
Reged: 19/04/2008
Posts: 5244
Loc: shitsville
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next important bit is to make sure the bearing housings in the frame remain completely paint free.
btw, congratulations.
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MTBLeague
Pooh-Bah
Reged: 23/05/2007
Posts: 2173
Loc: What is normal?
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Well done, job done nearly.
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The Path of least resistance is easier to follow............ when things are -Back to normal.... ...ish.
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dogboy73
enthusiast
Reged: 19/04/2009
Posts: 343
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I was so pleased with how well this went I filmed the extraction of the second pivot bearing & uploaded it to YouTube D) You can see it on my latest blog entry. I'm still chuffed to bits with how easy this ended up. Thanks again for everyone's help & advice;
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http://isisreborn.blogspot.com/
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