What is the firing order?

[DeClara]

The firing order of the engine is 1, 3, 4, 2. This means when cylinder 1 is in the power stroke, cylinder 3 is in the compression stroke, cylinder 4 is in the intake stroke, and cylinder 2 is in the exhaust stroke. Factors affecting the firing order: The firing order depends on factors such as the engine's structure, crankshaft design, and crankshaft load. The crankshaft is mentioned twice here because the engine's smoothness largely depends on the crankshaft. The centrifugal inertial force generated by the uneven rotating mass of the crankshaft can cause engine vibration. Crankshaft symmetry and uniformity: To ensure smooth operation, cylinders that fire consecutively should be spaced as far apart as possible. In V-type engines, the left and right cylinder banks should alternate firing. Therefore, the engine must have a firing order that balances the crankshaft's operation.