I have access to a lathe and am toying with the idea of making my own new bearings for my primary gear

Anybody had a go at this????

What material did you use???

Before someone asks...the tail on my crank is worn and I am planning on having it ground and making the primary gear bearings to suit.... (unless someone has a cheap 1100s crank and primary gear for sale )

Minimad

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You can take the boy out of the racer.........but not the racer out of the boy!

Yep I made one a year or so ago from LG2 spec bronze, for Cody's GT.
Crank was worn on the front tail bearing so we had it ground .003" undersize.
Bush was a floating design, a copy of the MSC one.
Clearances I used on the bush were .0015" outside, .003" inside, and .010" end float inside the gear.
Dunno if it's running yet- Cody appears to have vanished from the scene...

<edit> this was a front bush only, the rear (ie towards clutch) one was still OK.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

These threads now go together

http://www.ausmini.com/forums/viewtopic.php?t=28856

Sorry

Minimad

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You can take the boy out of the racer.........but not the racer out of the boy!