and allow the shims to be put in
Hi shuswapkev
shims - what shims.
Now first things first are we talking about the same thing, the timing side crank shaft bush.
If so then any shims needed go between the drive side web of the crank and the bearing that sits there, after having the timing side bush line bored square to the crank you need to assemble the crank and cases without any shims, measure any end float, subtract 0.001" from the end float and what's left is the amount of shimming to go between the drive side bearing and crank web.
Your aiming for end float of 0.003" maximum
Not quite as easy as it is said and you may device other methods of measuring the end float, some people like to measure the bearing and leave it off while getting the end-float as it's easy to damage the bearing removing it.
If you have or funds allow then a dial gauge is a good.
All the best with it, 0.001" is ideal but anything less than 0.003" is good.
now your going to tell me it's another bush entirely