2. Worn Piston Rings: The piston rings are responsible for creating compression in the engine. Over time, they can wear out and lose their ability to seal properly, causing compression loss. You may need to replace the piston rings if they are found to be worn out or damaged.
3. Worn Cylinder Walls: The cylinder walls provide a smooth surface for the piston rings to move against. If the cylinder walls become scored or damaged, it can cause the piston rings to lose their seal and result in compression loss. Inspect the cylinder walls for any damage or wear, and have them honed or replaced if necessary.
4. Leaking Valves: The valves in the engine control the flow of air and fuel into and out of the cylinder. If the valves are not sealing properly, it can lead to compression loss. Check the valves for any damage or wear, and replace them if necessary.
5. Blown Head Gasket: The head gasket seals the cylinder head to the engine block. If the head gasket fails, it can cause a loss of compression. Inspect the head gasket for any damage or leaks, and replace it if necessary.
