[SEL] Hercules XK revisited

[Germoamer at aol.com]

While in one of the outbuildings this morning, I stopped and looked at a 
Hercules XK and studied the 3 hole flywheels.  A thought as to why they are there 
came to me, and you have to understand by brain to appreciate the significance 
that!  The flywheel hub is split with a bolt to hold onto the crank with a 
straight key.  The split is directly centered in one of the flywheel holes.  
Would not that hole then be there to permit minor expansion/contraction of the 
flywheel as it is tightned/loosened on the crankshaft?  The other two holes 
would then be there to balance the flywheel, or also to permit 
expansion/contraction.  

Tom Schmutz
Concord, Va. USA
Germoamer at aol.com