2. Squeeze with tool (photo) valve spring and remove the crackers. After removing the tool, remove the remaining parts of the valve drive and remove the valve. Remove the oil seal (provided on engine parts). If the cap cannot be removed due to sticking, remove the valve first.
3. If necessary, file the valve stem (if the engine has a significant mileage, then the cracker groove breaks, forming a thickening along the edge).
4. Remove the support washer (provided for parts of cars).
5. Remove the remaining valves.
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