UK Car Repair Questions? Ask a Mechanic for Answers ASAP
If the tapping is coming from the top end then first try and adjust the valves .
Valve adjustment should be done when engine is hot ,
Adjust to 0.25mm Ex and 0.25mm In .
Valve should always be reset if the head was removed .
Still need additional information then please get back to me with the reply button, and not the poor or bad service, this way i can get back to you or suggest another expert if needed.
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Kind regards Greg
Is the tapping louder than the valve tapping noise .
Yes you said ,but is the tapping more of a clunk or knock .
I can't hear this so try and explain best you can .
Okay recheck the lifter one by one as you have play due to a possible bad lobe on the cams.. (a possibility ).