Originally Posted by JMo (& piglet)
Top explanation there Sparrowhawk! - I don't think either John or myself could have said it any better!
A big Thanks to all of you. Sparrowhawk - I like your idea of drawing a picture - "See Spot run" always worked for me!
Any idea where I could find some of the engine's measurements - rod length (center-to-center), piston (crown-to center-of-wristpint),crankpin-to-center-of-crankshaft?