Cars & Vehicles Auto Parts & Maintenance & Repairs

How to Adjust Noisy Valves in a 1965 GTO

    • 1). Remove the valve cover's securing bolts with a socket wrench. The valve cover is the 18-inch long piece of metal located on the top of the cylinder head, between the intake manifold and the exhaust manifold.

    • 2). Lift the valve cover off of the engine to access the rocker arms.

    • 3). Start the engine.

    • 4). Turn the adjusting nut in the center of any one rocker arm in a clockwise direction with a socket wrench just until that rocker arm stops producing the ticking sound.

    • 5). Rotate the adjusting nut an additional 1/2-turn in a clockwise direction.

    • 6). Adjust the remaining valves in the same manner.

    • 7). Turn the engine off.

    • 8). Remove the gasket from the inner edge of the valve cover.

    • 9). Apply engine sealer to a new valve cover gasket and press the gasket into the cover.

    • 10

      Lower the valve cover onto the cylinder head and tighten the cover's bolts with the socket wrench.

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