How to Adjust the Valves of a Five-Cylinder Engine?

[AidenAnn]

Five-cylinder engine valve adjustment method: First, slightly loosen the lock nut on the rocker arm, then use a screwdriver to turn the adjustment screw as needed—turning it downward reduces the clearance, while turning it upward increases the clearance. Adjust until the rocker arm and valve are in contact with the feeler gauge but can still move slightly. Then, hold the adjustment screw in place with the screwdriver and tighten the lock nut. Next, move the feeler gauge and rotate the crankshaft for rechecking until all valve clearances are correctly set. Car valves, also known as throttle valves, are responsible for delivering fuel into the engine and expelling exhaust gases. Traditional engines have only one intake valve and one exhaust valve per cylinder. This design is relatively simple, easy to maintain, and performs well at low speeds. However, its drawback is difficulty in increasing power, especially at high speeds where the air intake efficiency is low and performance is weaker. To improve intake and exhaust efficiency, multi-valve technology is now commonly adopted.