Clicking Exhaust Valve
I've tried every suggestion here on the forum regarding other's complaints of a clicking valve. I have a '91 Spider, which is supposedly notorius for having noisy valves. I've changed to Castrol 20w/50, Marvel Mystery Oil, tightened everything up, including the exhaust manifold. Repaired a hole in the muffler. No leaks as far as I can tell.
The other valves sound nice and smooth - a smooth purring sound comes from the engine, regular slight noises associated with an engine. I tried a long handled screw driver to my ear, ran it along the cam cover, but heard nothing. But standing near the exhaust side, or even ten feet away, I can hear a clicking sound - cold or warmed up. It almost sounds as if it is just one valve.
Car is at 57K. I have no reason to believe this car was not meticulously maintained by the PO - I just bought it, BTW. I've heard from others that adjusting valves may or may not cure it and probably won't - I have yet to adjust them and am sort of afraid to do so as there seems so much discrepancy about how to actually perform the job (and I'd rather not pay a mechanic as I've done valve adjustments before on other vehicles). I understand that the Cardisc is not shadetree mechanic friendly on the matter.
Anyone care to offer their two cents?