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Ian C
Ian C
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SteveM Offline OP
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Need some information on the appropriate type of material and clearances for the bushing on the sleeve gear of a Manx gearbox.

After coming off the track at a track day, I noticed that the bike was dragging while coasting. Investigation revealed that the sleeve gear bush had failed; it looked like it had run dry of lubrication.

I have a machinist who will press a new bushing in and ream it, but he asked about the type of material (phosphor bronze etc.) that the bushing should be made from and the appropriate clearance to ream it.

Can anyone help?

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Steve give maurice a call.


Tim Joyce
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You can cut a groove in the bearing surface of the bushing to allow oil entry but don't go all the way to the end (of the bushing at the outside of the tranny) to keep oil from leaking out. I had to do this a couple times for my 850 racer. Before the modification I had failures and one bushing actually dissappeared.

Don't just use two bushngs (one on each end) but fill the entire space up with bushings.

Jim

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SteveM Offline OP
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Thanks Tim. I will. Not sure why I didn't think of that in the first place. Jim. Thanks for the advice. May go that way.

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he may be in england?


Tim Joyce
sponsors
[email protected] cycles
Works shocks
Glass from the past
Joined: Aug 2007
Posts: 290
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SteveM Offline OP
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Yeah, suspect he is Tim. I tried to call the last couple of nights but got his answering machine. I'll catch up with him.


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