How to Adjust Four-Cylinder Valves?

[MaverickFitz]

Four-cylinder valve adjustment method is as follows: 1. Adjust cylinder by cylinder. According to the firing order of the cylinders, rotate cylinder 1 to the compression top dead center (there is a scale on the crankshaft pulley or a mark on the crankshaft flywheel) aligned with the 0 scale line or the pointer in 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° to adjust the exhaust valve of cylinder 2, the intake valve of cylinder 3, and the intake and exhaust valves of cylinder 4. 2. Use a screwdriver with a wooden handle to listen for which cylinder is not making noise or is making less noise. Refer to the valve clearance of this cylinder to adjust the valve clearances of the other three cylinders. 3. The valve clearance should be slightly larger when adjusted on a cold engine and slightly smaller when adjusted on a hot engine. Generally, the engine should be turned off after warming up before adjusting the valve clearance.