BTDC stands for "Before Top Dead Center," referring to the timing of an engine's ignition relative to the position of the piston at the top of its stroke. It indicates the degree measurement before the piston reaches its highest point in the cylinder, where the air-fuel mixture is ignited. Adjusting the timing BTDC can affect engine performance, efficiency, and emissions. Typically, this measurement is crucial for optimizing engine timing in various automotive applications.
The timing is 10 o btdc.
do you mean firing order or timing? firing order is 1,3,4,2 timing is 16 degrees =/- 2 btdc @ 750 rpm =/- 50
The correct timing for a Mercruiser 3.0L 140 engine is 6 degrees BTDC. for a Mercruiser 120 the correct timing is 8 degree BTDC.
8 deg. BTDC
4 btdc
10 degrees btdc with spout connector unplugged.
5 btdc or 10 standard btdc if you distribuidor not rotate
35 BTDC 35 BTDC
12 degrees BTDC for 2.0L, 10 degrees BTDC for 2.5L.
10 deg. BTDC aon an automatic, 5 deg btdc on manual
the ignition timing is 6 degree BTDC.
2.3 L - 10 degrees BTDC ( before top dead centre ) for ignition timing 2.9 L - 10 degrees BTDC " 4.0 L - 10 degrees BTDC - distributorless