How to Adjust Valves in a Four-Cylinder Engine?

[VanAlyssa]

Four-cylinder engine valve adjustment method is as follows: 1. Rotate cylinder 1 to the compression top dead center aligned with the 0 scale line or aligned with the pointer in the timing gear chamber; 2. Adjust the intake and exhaust valves of cylinder 1, the intake valve of cylinder 2, and the exhaust valve of cylinder 3; 3. Rotate 360 degrees, then adjust the exhaust valve of cylinder 2, the intake valve of cylinder 3, and the intake and exhaust valves of cylinder 4. The function of valves is to specifically input air into the engine and expel the exhaust gases after combustion. Structurally, they are divided into intake valves and exhaust valves. The intake valve's role is to draw air into the engine to mix with fuel for combustion; the exhaust valve's role is to expel the burned exhaust gases and dissipate heat.