What is the main function of a cylinder head?

[StPhoebe]

The main function of a cylinder head is to seal the cylinder, forming a closed space that allows the piston to properly compress fuel and the air-fuel mixture to generate power. The method for removing a cylinder head is as follows: 1. Secure the engine on a rotating stand and place the stand on a workbench; 2. Remove the valve cover; 3. Remove the oil deflector on the cylinder head; 4. Loosen the cylinder head bolts, starting from the sides and then moving to the center, and remove all the cylinder head bolts; 5. Gently tap the joint between the cylinder head and the cylinder block with a soft hammer to loosen it, then remove the cylinder head. A cylinder is a cylindrical metal component that guides the piston in linear reciprocating motion inside the cylinder, consisting of the cylinder barrel, end cover, piston, piston rod, and sealing elements.