Transmission Bearings

Dont Andover sell new gearbox cases ? , that could be another option . Cheers

Shelby-Right said:

Dont Andover sell new gearbox cases ? , that could be another option . Cheers

Click to expand...

That may end up being the option if this does not work out. Would like to avoid affording that if possible.

maaseyracer said:

That may end up being the option if this does not work out. Would like to avoid affording that if possible.

Click to expand...

Gearbox cases are often available on eBay in good shape. The one I bought last month cost me $49.57 delivered and there is nothing wrong with. Once in a while you'll get one with an issue which you can usually send back. There are three companies I know of parting out bikes and of them ebvc is the most reliable and easist to deal with if there is an issue.

I can't imagine paying for machining unless you're building a bike for concours shows and need the serial number not to change. In that case, a new shell won't work either.

marshg246 said:

I can't imagine paying for machining unless you're building a bike for concours shows and need the serial number not to change. In that case, a new shell won't work either.

Click to expand...

The only money out is my time in this hobby. Also happy to use this stainless scrap and NJ206 bearing I have here.

Was able to bore the case today. Not sure this is the best solution, but I still think it is worth a try. The set up in the mill is not for the faint of heart, and took some patience to figure out. The case flexes a lot more than I had realized. Boring head size is an issue and I ended up buying a new boring head to get the job done. Ran out of time before I could recheck bearing alignment so I will have to check it on Friday. Once I can verify the alignment I will choose whether or not to run a ball bearing or roller bearing.