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Showing results for tags 'valve tap head'.
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I have a tapping sound that seems to originate from the valve train. Used a big screwdriver handle to my ear and it was coming from somewhere in the middle portion of the valve cover. I adjusted my valves three times and the tapping persisted. There is a thread on hybridz about a valve train tapping and several people found that the portion of their rocker that contacted the lash pad was contacting the side of the lash pad and not the middle. I thought I was in the same situation so I removed all my rocker arms. This is what I found: Rocker #8 has a groove that is huge. Also the lash pad for #8 has lopsided wear. I posted a thread a few days ago about finding all my passenger side camshaft bearing bolts totally loose. I guess this is the result of unsecured cam shaft bearings. I carefully inspected my cam lobes and they look and feel perfect. I am going to order a replacement rocker and lash pad on Monday. Will I have issues since I am not replacing my cam? I also carefully inspected all the rocker arms and they are perfect except for #6 and #10. They have almost indistinguishable lines that are hard to capture on camera. They are perfectly smooth to the touch and their lash pads have perfect wear. Howard 1974 260z
