After buying my Greeves TES a couple of years ago I've finally started work on it with the aim of entering it in an event in June next year. Hopefully I've left enough time as I can only work on it at weekends due to work commitments during the week.
One of the tasks to tackle was cutting the swingarm shaft as it's seized in the frame. The job was straight forward enough so far, but I've still got the outer sleeve of the bushes and the piece of shaft to remove from the centre of the frame. My questions are how to avoid a repeat seizure?
1. Why are the rubber bushes used? Could nylon bushes be machined up? That is all Honda used in their bikes in the 80's. There would be no chance of them seizing in future.
2. Would making the shaft out of stainless reduce its risk of seizing in the frame? I see modern trials bike use aluminium which also would not seize, but the modern bikes weight half what the Greeves does.
3. Alternatively has anyone tried machining a series of grooves around and along the shaft and adding a grease nipple to try and prevent seizing?
4. Has anyone tried anything else?
I'm interested in all constructive views.
Best Regards,
Peter Barnett
New Zealand.
One of the tasks to tackle was cutting the swingarm shaft as it's seized in the frame. The job was straight forward enough so far, but I've still got the outer sleeve of the bushes and the piece of shaft to remove from the centre of the frame. My questions are how to avoid a repeat seizure?
1. Why are the rubber bushes used? Could nylon bushes be machined up? That is all Honda used in their bikes in the 80's. There would be no chance of them seizing in future.
2. Would making the shaft out of stainless reduce its risk of seizing in the frame? I see modern trials bike use aluminium which also would not seize, but the modern bikes weight half what the Greeves does.
3. Alternatively has anyone tried machining a series of grooves around and along the shaft and adding a grease nipple to try and prevent seizing?
4. Has anyone tried anything else?
I'm interested in all constructive views.
Best Regards,
Peter Barnett
New Zealand.
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