Dead centre (engineering)
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In a reciprocating engine, the dead centre is the position of a piston in which it is either furthest from, or nearest to, the crankshaft. The former is known as top dead centre while the latter is kn
Top dead centre
Bottom dead centre
Position of pistons
Ignition timing
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In a spark ignition internal combustion engine, ignition timing is the timing, relative to the current piston position and crankshaft angle, of the release of a spark in the combustion chamber near th
Dead centre (engineering)
…engine, top dead centre of piston #1 is the point from which ignition system measurements are made and the firing order is determined. For example, ignition timing is normally specified as degrees of crankshaft rotation before top dead centre (BTDC). A very few small and fast-burning engines require a spark just…
Timing light