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The Seal or Ring, O (For Valve Stem Oil) with part number 90913-02105 is a crucial component used in the valve stem assembly of Toyota engines. This O-ring or seal serves to prevent oil from leaking past the valve stem and into the combustion chamber, ensuring the engine operates efficiently and cleanly. Key Functions: Preventing Oil Leakage:
The primary role of the O-ring is to create a tight seal around the valve stem, preventing oil from leaking into the combustion chamber. This helps maintain the proper oil levels in the engine. Minimizing Oil Consumption: By preventing oil from entering the combustion chamber, it ensures the engine only consumes oil for lubrication purposes, not for combustion. Protecting Engine Performance: Proper sealing ensures that excess oil does not burn in the combustion chamber, which could cause smoke in the exhaust and lead to reduced engine performance or damage.
This part is essential for maintaining proper oil control in the engine and preventing issues such as burning oil or excessive exhaust smoke. Replacing worn or damaged valve stem seals can help restore engine performance and efficiency.
