Originally posted by modellor
I should have guessed you were going to get technical. But when you machine out the web on the crank counterweight balance how do you know how much to take off at the other end to bring it all back into proportion.
If this makes any sense to you.
Yep, I think Dennis was reffering to dynamic balancing of the whole engine when in operation and you were reffering to the balancing of the crankshaft itself.
I'm no engine expert myself but I think the webbing that you refer to is directly opposite in direction to the intake window hole that affects the crank timing on the crankshaft. Maybe the same amount of metal can be taken out when you change the crank timing. That's an idea. But I think you need special machines small enough for rotary balancing of the crankshaft.