You've got a good grasp on the definition of TDC. Don't try to confuse
yourself by reading books. :)
>At 01:31 PM 1/28/97 -0600, Christopher M. Smith wrote:
>I've always understood TDC as position at which the #1 piston is at the
>top of the cyclinder (viewable with a light down the spark plug or
>air intake holes on the top side of the head), and the rotor is just
>coming in-line with the notch on the distributor. This also coincides with
>the 0 degree indendation in the fan (timing scale). All of this
>corresponds to the end of the compression stroke (both intake and exhaust
>valved closed and the pison has moved from the bottom of the cylinder to
>the top compressing the air-fuel mixture) ... just before the plug is
>about to fire.
>Cheers, Chris

 Greetings from Michigan's Upper Peninsula
 Jeff & Jean-Marie Diebolt
 mailto:jdiebolt@up.net