Top Dead Center. When the piston of an engine reaches the top of its stroke it is said to be at top dead center. This piston position happens to be the point at which the air/fuel mixture is most compressed. In most engines, depending on their RPM, the spark plug will fire a few degrees before the top dead center in order to start the burning process before the down or power stroke. One of the great benefits of Viscon is its ability to control the propagation of a flame emanating for a spark plug. By reducing the number of very small droplets of fuel, Viscon promotes a more even burning flame, which makes ignition before top dead center work more efficiently.
Top Dead Center -- when a piston is at the top most position during the compression stroke. TDC can also refer to the top most position of the piston in the exhaust stoke, but "true" TDC is on the compression stroke.
This mark on ALL crank pulleys refers to the compression stroke of the #1 & #3 pistons. Set it to the seam in your case, then pull off the distributor cap and note which plug wire it's pointing to. That's the piston ready to fire.
Abreviation for Top Dead Center. When a piston is at the very top of it's stroke. Report this Word Added by: jefx
top dead center - Volts
(see TOP DEAD CENTER)
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Top Dead Center. Refers to the position being at the very top of its travel in the cylinder. On a four stroke, TDC will occur at the top of the compression stroke and the top of the exhaust stroke.
Top Dead Centre. The point at which a piston is at the top of its stroke.
Top dead center. The exact top of the piston's stroke.
Transmission Distribution Center. A substation designation used by ComEd. TDCs convert 138,000 volts on the transmission side to 12,000 volts on the distribution side.
An abbreviation for top dead center.
top dead center. The point at which the piston has reached the top of its stroke and has compressed the fuel/air mixture to the greatest extent. BTDC and ATCD mean before and after top dead center. These terms are used to refer to timing marks.
An abreviation for when the crankshaft is at Top dead centre.
Abbreviation for Top Dead Center. This is the point at which the piston reaches its uppermost position in the cylinder. Ignition timing is usually expressed as so many degrees before top dead center (BTDC) or after top dead center (ATDC). A timing mark on
Top Dead Center. The point at which the piston reaches the top of its travel on the compression stroke.