Why? I would keep a log on the engine - set some baselines - then run
it. When the numbers begin to change - then I would begin considering
alternatives.

I worked as an aircraft mechanic for years. In private aircraft,
teardowns were only done when the numbers began to get out of line.
Otherwise - we simply ran them. Those numbers were things like
compression numbers, oil analysis numbers, crankshaft runout, end play,
oil pressures, oil leaks, etc. If such are good - drive the thing until
they begin to change. THEN look at the alternatives. Enjoy your machine.

John

On 10/20/2013 8:58 PM, Robert Clemmer wrote:
> I know I should open it up and do
> the main and rod bearings but it is just soooooo smooth.