Pivot axle removal on scott spark 20
crashmagnet
Posts: 4
I have a 2008 scott spark 20 carbon frame i bought from ebay at christmas time 2013. I spent the christmas holiday period fitting various bits to it and ended up with a nice ride which I've been using on a weekly basis for the last 6 months.
Recently I've noticed some notchiness in the suspension and I have now removed two sets of pivot bearings on the suspension linkage, cleaned out the cartidges and re-packed with grease. Those 2 linkages now are buttery smooth however the main pivot above the BB is proving extremely stubborn.
I cannot seem to remove the pivot axle that goes through the lower chainstay arms in order to get at the bearings. From research online you are supposed to remove the preload torx screw on the non-drive side and loosen off the bolts the clamp the chainstay onto the axle on both sides. I have no problem doing this but actually removing the axle is going nowhere.
The axle looks like it is meant to the pushed out from non-drive to drive side but no matter of tapping, hitting or swearing is moving the axle. As it's a carbon frame I am cautious about hitting anything too hard. I have tried screwing an old M5 bolt into the end of the non-drive end of the axle and hitting that but that hasn't helped.
Does anybody have any ideas? The only thing I can think of is the axle is seized to the bearings.
Thanks
Andy
Recently I've noticed some notchiness in the suspension and I have now removed two sets of pivot bearings on the suspension linkage, cleaned out the cartidges and re-packed with grease. Those 2 linkages now are buttery smooth however the main pivot above the BB is proving extremely stubborn.
I cannot seem to remove the pivot axle that goes through the lower chainstay arms in order to get at the bearings. From research online you are supposed to remove the preload torx screw on the non-drive side and loosen off the bolts the clamp the chainstay onto the axle on both sides. I have no problem doing this but actually removing the axle is going nowhere.
The axle looks like it is meant to the pushed out from non-drive to drive side but no matter of tapping, hitting or swearing is moving the axle. As it's a carbon frame I am cautious about hitting anything too hard. I have tried screwing an old M5 bolt into the end of the non-drive end of the axle and hitting that but that hasn't helped.
Does anybody have any ideas? The only thing I can think of is the axle is seized to the bearings.
Thanks
Andy
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Comments
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This is the close up (bad photo) of the drive side pivot. As you can see there is gear cable routing on the chainstay which makes positioning a socket and using a G-Clamp impossible as far as I can tell.
Better pic
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Made a tool to fit over the drive side axle end and cable guide from 16mm steel tube with a 1mm wall thickness. Had to cut a square out of the wall to go over the guide but seemed to work ok, axle is out and bearings now replaced.0
