My car has started experiencing the tapping noise coming from the right side top of the engine. I had my timing chain, rails and tensioner done about 3 weeks ago. It blows blue smoke when you first accelerate from a stop light. But it was blowing blue smoke before the work was done. So I think my valve guides / stems need to be looked at. It has good pickup once moving but I always like to get rough estimates way in advance just in case. Thanks.
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