Man, depends on the car and whether it's electronic ignition with coil-packs or distributer. In your manual, find out where the #1 cylinder is... Take out that sparkplug. Stick your finger (or the tip of a screwdriver) in the hole and turn the engine by hand. When you feel the piston come all the way up, you're at top dead center.
Top dead center on an engine is defined as when the piston is farthest from the crankshaft. Bottom dead center is when the piston is closest to the crankshaft on the engine.
set it at top dead center the computer does the rest
0 TDC / Top dead center.
The 0 part is the degrees at which it is set. TDC stands for top dead center. Your engine times at 0 degrees at top dead center.
TDC is 0 degrees TDC, not 10 degrees BTDC which is before top dead center. ATDC is after top dead center. Both of these in relation to piston height are "below top dead center".
At zero. Tdc ( top dead center )
ZERO TDC / Top Dead Center
The timing should be set at 12 degrees before top dead center. If this is a Canadian heavy duty engine, it should be set at 2 degrees after top dead center.
top dead center is what it stands for. top dead center
It is look like ruler with 0, 10, 20 number XXXXXXXXXXXXXXXXXXXXXXXXXXXXX The timing scale will have an "A" at the top and a "B" on the bottom. In the center is a "0". The "A" is for after top dead center. The "B" is for before top dead center. Each mark on the scale is 2 degrees. Timing is always set on before top dead center.
The top dead cente
the timing should be set top dead center with the number one spark plug