keychange Posted February 6, 2012 Report Share Posted February 6, 2012 (edited) I noticed excessive movement in the swing arm on my Cota 247 and I find that the pivot mounting holes on the frame itself have worn and are allowing the movement. Can anyone suggest an easy fix and failing that give me the hard fix options. Edited February 6, 2012 by keychange Quote Link to comment Share on other sites More sharing options...
feetupfun Posted February 6, 2012 Report Share Posted February 6, 2012 I noticed excessive movement in the swing arm on my Cota 247 and I find that the pivot mounting holes on the frame itself have worn and are allowing the movement. Can anyone suggest an easy fix and failing that give me the hard fix options. Easy fix - tighten the bolt Slightly less easy fix - weld up worn part of hole and file back to size/position Quote Link to comment Share on other sites More sharing options...
keychange Posted February 6, 2012 Author Report Share Posted February 6, 2012 Easy fix - tighten the bolt Slightly less easy fix - weld up worn part of hole and file back to size/position It's about 1 mm of play on the bolt on the horizontal but that equates to quite a bit of movement. I thought of welding and that's fine - but filing a round hole..... beyond my skills. Quote Link to comment Share on other sites More sharing options...
zerorev3rev4 Posted February 6, 2012 Report Share Posted February 6, 2012 poss weld a tight fitting washer to frame Quote Link to comment Share on other sites More sharing options...
keychange Posted February 6, 2012 Author Report Share Posted February 6, 2012 so of course I pulled the swing arm off and then noticed brake side wheel bearing is seized ....steering head bearing shot ... thank gott for Pyramid parts. The bikes got a big workout by my kids over Xmas and then I had a problem with my bike shed so parked both bikes in the car port.... 2 weeks and 1004mm rain - I guess the Cota was exposed - or else I have just been really slack with my maintenance Quote Link to comment Share on other sites More sharing options...
old trials fanatic Posted February 6, 2012 Report Share Posted February 6, 2012 Ream the hole out to a larger size then turn a couple of top hat shaped spacers out of stainless id to fit the spindle and od to fit the reamed out hole. Job done no welding required and just a basic turning job. Quote Link to comment Share on other sites More sharing options...
keychange Posted February 14, 2012 Author Report Share Posted February 14, 2012 I tried JB Weld - so many people rave about it. I now have a nice toight fit but still waiting on wheel and steering bearings before I can try it out. If it works I hope to run it at my first official outing in Tamworth ( NSW ) this weekend. Cheers Quote Link to comment Share on other sites More sharing options...
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