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What is the adjustment method for the valves of a four-cylinder engine?

1 Answers

Tami

07/29/25 4:17pm

The adjustment method for the valves of a four-cylinder engine is: 1. Divide the number of cylinders into two equal parts, using the center as the axis of symmetry; 2. Two people cooperate, with one person rotating the crankshaft; 3. Adjust the valve clearance of a cylinder on the right side of the axis of symmetry, paying attention to the intake valve of the corresponding cylinder on the left side of the axis of symmetry; 4. When the valve moves slightly, adjust the valve clearance of this cylinder on the right side. The valve is composed of a valve head and a stem, and its function is to input air into the engine and discharge the exhaust gases after combustion. The effects of excessive valve clearance are: 1. It reduces the opening degree of the intake valve and shortens the opening time, leading to insufficient air intake and a decrease in engine power; 2. It causes poor exhaust, resulting in an increase in exhaust gases in the combustion chamber.

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