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                               (a) Check the stroke of the plunger in the center of the camshaft timing oil control valve assembly (exhaust camshaft timing gear bolt assembly). 
                              Standard Stroke:  
                              2.2 mm (0.0866 in.) or more 
                              If the result is not as specified, replace the camshaft timing oil control valve assembly (exhaust camshaft timing gear bolt assembly). 
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