What are the reasons for air leakage in a rotary cylinder?

[DelMaci]

Air leakage in a rotary cylinder is caused by leakage between the cylinder head and the cylinder, severe wear between the piston ring and the cylinder, or a stuck piston ring leading to air leakage, among other reasons. Leakage between the cylinder head and the cylinder: Turn the engine by foot and carefully observe the joint surface between the cylinder head and the cylinder for any oil foam. If oil foam is present, it indicates air leakage at the cylinder head gasket. At this point, check whether the tightening nuts on the cylinder head are properly tightened; the bolts need to be tightened. Severe wear between the piston ring and the cylinder or a stuck piston ring causing air leakage: Replace the affected components. Damaged spark plug gasket or surface contamination: Forgetting to install the spark plug gasket can cause air leakage between the spark plug gasket and the cylinder head. Replace the gasket to resolve the issue.