Quote:
Originally Posted by JFP in PA
Because when the engine truly rotates backwards, the valve timing will result in instant piston to valve contact; even rotating by hand, the mechanical advantage is sufficient to bend valves. When you back off of WOT, the engine is still rotating clockwise; the only way to get it to rotate counter clockwise is by someone turning the crank backwards.
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So..... without arguing, I'm still gonna ask HOW?
I don't see any way that valve to piston contact can occur in one direction but not another. Those bits are, for all intents and purposes, fixed in relation to each other. I just don't see how the backwards rotation changes that?
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