Message text written by "G Spencer"
> As I tried to start the engine up, I second guessed myself, and took the
valve cover off, and watched the valves on #1 (assuming that intake is
closest to the front of the car and opens first) I waited for #1 to open
then close, thinking that the firing should happen then, just before the
exaust opens and rotated the dizzy until it was lined up with #1 then, this
I take is is WRONG. Should I just go back to where it was, or was I wrong
there also?
Thanks a lot,
graham
<
Graham,
You had everything right except that the firing occurs after half a
revolution of both valves being closed. This is the compression stroke.
You don't get compression with the valves open.
At the same time as #1 is rising in the compression stroke (with both
valves closed) #6 (which moves up and down in unison with #1) is in it's
exhaust stroke and the exhaust valve is open. the #6 exhaust valve is the
rear most valve.
After firing #1 is in the power stroke and the piston is moving down. The
#6 piston is also moving down but the intake valve is open drawing air/fuel
mixture for it's power stroke sometime in the future.
I hope this clarifies things.
Dave
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