Honda 14721-P8E-A00 Valve, Exhuast

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The valve clearance generally does not need adjustment unless valve train components have been replaced or a valve job has been performed, or if the valves are noisy. The simplest check for proper valve adjustment is to listen carefully to the engine running with the hood open. If the valve train is noisy, adjustment is necessary. The valve clearance must be checked and adjusted with the engine cold. Remove the valve covers. Rotate the crankshaft clockwise and position the number one piston at TDC. When positioned correctly at TDC, the pointer on the front timing belt cover will align with the sprocket mark. In this position, adjust the valves for cylinder number one. There are four valves for each cylinder. Starting with the intake valve, insert a feeler gauge of the correct thickness between the valve stem and the rocker arm. Withdraw it; you should feel a slight drag. If there's no drag or a heavy drag, loosen the adjuster nut and back off the adjuster screw. Carefully tighten the adjuster screw until you can feel a slight drag on the feeler gauge as you withdraw it. Hold the adjuster screw with a screwdriver to keep it from turning and tighten the locknut. Recheck the clearance to make sure it hasn't changed. Repeat the procedure on the other intake valve, then on the two exhaust valves. Rotate the crankshaft pulley clockwise until the number 4 on the camshaft sprocket is aligned with the pointer on the timing belt cover. Check and adjust the number 4 cylinder valves. Rotate the crankshaft pulley 120 degrees clockwise until the number 2 cylinder is at TDC. Check and adjust the number 2 cylinder valves. Rotate the crankshaft pulley clockwise, following the firing order, and adjust the remaining valves. Install the valve covers.

The valve clearance generally does not need adjustment unless valve train components have been replaced or a valve job has been performed, or if the valves are noisy. The simplest check for proper valve adjustment is to listen carefully to the engine running with the hood open. If the valve train is noisy, adjustment is necessary. The valve clearance must be checked and adjusted with the engine cold. Remove the valve covers. Rotate the crankshaft clockwise and position the number one piston at TDC. When positioned correctly at TDC, the pointer on the front timing belt cover will align with the sprocket mark. In this position, adjust the valves for cylinder number one. There are four valves for each cylinder. Starting with the intake valve, insert a feeler gauge of the correct thickness between the valve stem and the rocker arm. Withdraw it; you should feel a slight drag. If there's no drag or a heavy drag, loosen the adjuster nut and back off the adjuster screw. Carefully tighten the adjuster screw until you can feel a slight drag on the feeler gauge as you withdraw it. Hold the adjuster screw with a screwdriver to keep it from turning and tighten the locknut. Recheck the clearance to make sure it hasn't changed. Repeat the procedure on the other intake valve, then on the two exhaust valves. Rotate the crankshaft pulley clockwise until the number 4 on the camshaft sprocket is aligned with the pointer on the timing belt cover. Check and adjust the number 4 cylinder valves. Rotate the crankshaft pulley 120 degrees clockwise until the number 2 cylinder is at TDC. Check and adjust the number 2 cylinder valves. Rotate the crankshaft pulley clockwise, following the firing order, and adjust the remaining valves. Install the valve covers.