How to adjust the valve clearance of automobile engine

Engine valve clearance adjustment method: 1, cylinder by cylinder adjustment method, that is, after determining the piston compression top dead center position of a cylinder according to the ignition sequence of the cylinder, the clearance between the intake valve and the exhaust valve of the cylinder can be adjusted; After adjustment, rotate the crankshaft and gradually adjust the valve clearance of other cylinders according to this method; 2. Adjust the crankshaft twice, that is, turn the crankshaft so that the piston of the first cylinder is at the compression top dead center. The flywheel mark is aligned with the inspection hole marking. At this time, the EQ6 100 engine can adjust the valves of 1, 2, 4, 5, 8 and 9, referring to the sequence of engine valves from front to back. 3. Then turn the crankshaft once to make the six-cylinder piston at the top dead center of the compression stroke, and then adjust the 3, 6, 7, 10 "plus 2" valves. This is actually a memory adjustment. When adjusting, twist the adjusting screw, insert the thickness gauge between the valve stem end and the rocker arm, and pull it back and forth; 4. It is advisable to check it again after feeling slight resistance until it is suitable. It takes a lot of time to check and adjust the number of crankshafts to be rotated by cylinder-by-cylinder method, but it is more accurate to check and adjust the valve clearance by cylinder-by-cylinder method for engines with serious wear.