How to Adjust Valves on a 4-Cylinder Engine?
1 Answers
Four-cylinder engine valve adjustment: Rotate cylinder 1 to the compression top dead center (there is a scale on the crankshaft pulley or a mark on the flywheel) aligned with the 0 scale or the pointer on the timing gear housing. Adjust the intake and exhaust valves of cylinder 1, the intake valve of cylinder 2, and the exhaust valve of cylinder 3. Then rotate 360° and adjust the exhaust valve of cylinder 2, the intake valve of cylinder 3, and the intake and exhaust valves of cylinder 4. Below is an introduction to valve adjustment: 1. When adjusting valve clearance, it must be done according to the manufacturer's specified values and with the valves fully closed. The positions for adjusting valve clearance: on the tappet for side-valve engines and on the rocker arm for overhead-valve engines. 2. Common valve adjustment methods include: single-cylinder adjustment method, two-step adjustment method, expression method, etc.