What is the typical firing order for domestic six-cylinder engines?

[AlanaLynn]

1-5-3-6-2-4 or 1-4-2-6-3-5. Four-stroke inline six-cylinder engine: The firing interval angle of a four-stroke inline six-cylinder engine is 720 degrees/6=120 degrees. The six crank throws are arranged in three planes, with a firing order of 1-5-3-6-2-4. Firing order for V6 engine: For a V6 engine, it's essential to first clarify the cylinder numbering sequence since V-engine cylinder numbering methods vary. Generally, when sitting in the driver's seat, if the right bank cylinders are numbered 1, 3, 5 from front to rear and the left bank 2, 4, 6, the firing order is typically 1-4-5-2-3-6. If the right bank is numbered 2, 4, 6 and the left bank 1, 3, 5, the firing order is usually 1-6-5-4-3-2. The firing interval angle for four-stroke V6 engines remains 120 degrees, with three crank throws at 120 degrees to each other. The working sequence is R1-L3-R3-L2-R3-L1. Facing the engine's cooling fan, the right bank cylinders are denoted by R (R1, R2, R3 from front to rear) and the left bank by L (L1, L2, L3), forming the working cycle.