[xb-60]

Could I draw on the forum’s experience again for explanations on engine balancing terminology and processes?

For example, what does balanced to 28oz mean when describing an engine?
How does this affect clutch choice?
Also what is external balancing?
How does a harmonic balancer work?
What items are subjected to internal balancing? And is this balancing static or dynamic?
Is material typically added (weights) or removed?
Do flywheels need to be balanced?
Do clutches need to be balanced?
I assume gearboxes, as supplied, don’t need balancing unless it’s for all-out racing applications?
Do tailshafts normally need balancing?
At what rpm point does extensive/comprehensive balancing become essential?
Does extensive/comprehensive balancing affect engine life significantly?

I understand the common-sense logic of balancing rotating and reciprocating components, but apart from simple static balancing, I don’t know how it’s accomplished.

Advice or input on any or all is much appreciated. Thanks.

Cheers,
Glen