The valve lash should be checked EVERY 15K miles & is part of every 15K service! Checking the valves takes about 45min & you will need a new valve cover gasket kit.

Adjusting the valves is another story! The camshafts MUST be removed for lifter adjustment. Time for that is 1 hour @ side! Plus you have the cost of the replacement shims. VERY few shops stock them SO be prepared to wait.

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