The Mazda Miata Valve Cover Gasket ensures that the engine oil of the nimble roadster is kept in place and does not leak onto the camshafts and valves and steal power. This special seal functions as a thin yet tough barrier that is squashed between the aluminum cover and the cylinder head and can accommodate the rapid changes in heat from idle to redline without becoming stiff, and thus the oil will always stay where it belongs. You can be sure that whether your NA, NB, NC, or ND rides on early cork, later rubber, or modern silicone, you can put in a fresh Valve Cover Gasket and immediately clean containment is regained and the sticky stuff will not produce the messy dribble that can come up on hot pipes and cause smoke or a fire hazard. It keeps the lubricant trapped and this ensures consistent pressure throughout the valvetrain and this translates to more consistent revs, stable horsepower, and fuel economy during daily commuting or spirited track racing. The exact fit of the part through the generations is representative of Mazda engineering, where performance oriented toward lightweight and simple service is well within the Mazda tradition and therefore fitting it takes only ordinary hand tools and no special sealant. Any keen Miata owner will be alerted by a tell-tale dark streak along the cover edge that the old gasket has dried and cracked and can resolve this by replacing it in time to ensure that catalytic converters do not burn off the oil and that eco sensors remain properly read. Since the Valve Cover Gasket helps avoid loss of top-end oil, this also reduces the possibility of starvation that may score cams or collapse lifters, increasing long-term engine reliability. Trust this gasket to fit torque requirements exactly, not shrink after many thousands of heat cycles, and shake off vibration on spirited cornering, and become an unspoken hero that Mazda fans everywhere are proud of.
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