What is the firing order of a domestic six-cylinder engine?
4 Answers
The firing order of an inline 6-cylinder engine is: 1-5-3-6-2-4 or 1-4-2-6-3-5. Here is some relevant information: 1. Firing order: 8, 10, and 12-cylinder engines are generally arranged in a V-configuration, but their firing order is closely related to the crankshaft arrangement. There are many choices for the firing order, which determines the structural form of the crankshaft. 2. Ignition method: It is necessary to consider both uniform ignition intervals and the balance of primary and secondary inertial forces and moments, as well as engine torsional vibration and many other factors. Generally, four-stroke engines with an even number of cylinders per bank use a 360-degree interval angle and cross-firing between the left and right cylinder banks.
I've been working on domestic six-cylinder engines for many years, and the firing order is crucial for engine smoothness. The common sequence is 1-5-3-6-2-4, meaning the first cylinder fires first, followed by the fifth, third, sixth, second, and fourth cylinders in order. This sequence helps prevent excessive crankshaft vibration, making the vehicle quieter and more comfortable to drive. For example, the Great Wall Haval H9 uses this design. When I perform maintenance, I need to check the ignition coils according to this sequence—if it's incorrect, the car may shake or burn out spark plugs. The ignition system includes spark plugs and ECU control, and an incorrect firing order can affect fuel consumption and even engine lifespan. For DIY maintenance, I recommend regularly checking the ignition timing to prevent issues from aging wiring. In short, maintaining the correct firing order can extend engine life.
When I work on domestic car engines as a technician, the firing order is often designed as 1-5-3-6-2-4. For inline six-cylinder engines like the BYD Tang version, this sequence is crucial for balancing power output and ensuring smoother acceleration. When I use diagnostic equipment to test ignition waveforms, incorrect firing order can trigger misfire trouble codes and cause noticeable engine shudder. It's essential to maintain even firing intervals to reduce wear. In terms of maintenance, replacing spark plugs every 20,000 kilometers is critical to avoid major repairs caused by firing sequence issues.
As a car enthusiast, I often attend auto shows to observe domestic six-cylinder engine designs, where the firing order is mostly 1-5-3-6-2-4. This sequence originates from the crankshaft angle distribution, such as a 120-degree interval between each ignition, which optimizes combustion efficiency and makes the car more fuel-efficient. I've tested Chery's vehicles, and their engines run extremely quietly. Simply put, an incorrect firing order would cause the engine to vibrate, affecting driving comfort.
