Cylinder Block: Camshaft End Play

When checking end play, back off rocker arm adjusting bolts to relieve tension on camshaft. With engine front cover removed, push camshaft toward rear of engine and install dial indicator so that indicator stylus is on camshaft sprocket cap screw. Zero dial indicator.
Position large screwdriver between camshaft sprocket and block. Pull camshaft forward and release it. If dial indicator reading is not within specifications, replace thrust plate. Readjust valve clearance. Ensure lifters have enough time to bleed down before starting engine.