On Sat, 04 Oct 2008 15:16:15 -0700, Bruce L. Bergman
wrote:



Instead of pushing down (that can't work because you are fresh out
of 'down' at the moment), why not try pulling UP? ;-)


Trouble is, he could only get 14.7 psi on the piston that way, then you run
out of vacuum!

It would be perfectly reasonable to apply enough torque on the crankshaft to
give 250psi on the piston, since it will see more than that in real use (WOT).
But how do you calculate that? I'd go for a couple of times rated engine
torque on the spanner before worrying about the rods. But presumably Gunner's
already done that and failed or he wouldn't still have a stuck piston.

I guess the moral is that before putting an engine to bed for a few
weeks/months/years/decades you should pour some oil down the plug holes and
bar the engine over a couple of times. Even if you are only going to flog it
to Gunner in a decade or so.


Mark Rand
RTFM