What about the pin retainer clips? Wouldn't that keep it from interfering with the cylinder wall? I can't find a good pic of the KB167 pin clip design.
My original thought was to make the "balance pin" out of aluminum rod installed with a light press fit. Size on size. If it did move it would...
I know this thread is more than a year old.
I have been thinking about doing this for a long time. Has this "pin balance sleeve" been tried? How did it work out in a running 318? Give us an update. Thanks for posting all this. John