Changed out the leaky fork seal on TT which is a 2004 Aprilia RS50 sporting a fully custom adapted Aprilia RS125 front end. The forks were just overhauled earlier this year for the 2 stroke extravaganza show and go so I was puzzled how the seal gave up the ghost so fast.
Picked up the replacement seal from my local Aprilia Dealer, Scuderia West, where Bob always helps me find and order bits for my rare Aprilia machines! Next up was some Motul 15 wt fork oil from SF Moto where everyone knows my name. Then Cycle Gear for the seal driver. Sounds like a lot of travel, but they are all within a mile of each other and keeping local shops open is something I try my best to support.
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| Leaky Fork, New Seal, Seal Driver, and 15wt oil. |
After assembling the needed materials and toolsI pulled the fork apart to inspect what was causing the leak. Never seen one this bad in such a short time so I'm thinking our difficulty in seating the seal may have caused some damage the last time resulting in catastrophic failure.
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| Faulty Fork Seal |
I didn't want to repeat the same mistake with the new seal so I created a simple rig which enabled me to apply equal pressure to each side of the seal while pushing the fork down with my body weight. This prevented the issue we had last time where one side would seat and the other side would pop out.
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| Home made seal fitter |
Job done with minimal mess and fuss so time to get everything fitted back together.
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| Ready to roll |
All put back together and ready for the next ride!
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| TT is ready for liftoff |
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