Counter rotating engines

[Ben Swann]

[At 05:11 PM 3/28/02 -0800, Bernard Littau wrote:
>There is close to nothing in an engine itself that is rotation direction
>specific -- the cam is all I can think of right now.

i'm not a mechanical engineer, but i would bet the crankshaft would have to
be rebalanced if it were rotating the opposite direction.
it might run, but i wouldn't rev it...

frank]

The cam is mainly what does this - the distributor gear and distributor, as
well as the lobes being bass ackward.  The crank could be used, just need
new bearings and lastly the crankshaft seals have groves in the opposite
direction so the oil will spin back into the motor.  Using the normal seal
will literally pump the oil out rather than retain it.

Ben