I agree, what I did not like was the disc didn't make it to the other side of the groove.
I have to either re-drill or machine for the ring gear, so about the same amount of time anyhow. I am fortunate to have access to cnc equipment and friends that will help.
The '49 is back together with the hy jacked parts and I have a nice 235 waiting for me to get a little time.
I think I know why the 216 is getting so noisy,, I do not think much has been done to it, The flywheel still has the X on it and the cover has the O.. and when I was removing the flywheel I could chuck the crank back and forth nearly 1/8 inch. I think she's about wore out!!