"Joe AutoDrill" wrote in message
news
YEQe.2171$wE1.1629@trndny01...
Would it be possible to build in a one-way rachet system? I'm not
understanding 100% how the crank handle works, but what keeps it from
spinning wildly?
The pin on the end of the crank handle engages a half-circular "groove" with
a tapered approach. (Hard to explain) When the engine fires, the pin (and
thus, the handle) is thrust out of the hole, and disengages.
Only danger is a "backfire" and a brief backwards turn, which grasps and
spins the handle.
At least, that's how my '49 Ford Anglia did it.
--
Jeff R.