I'm stumpped... what about a rocker shaft nut? I suppose one would not have placed TWO valve lock nuts on... *scratch head*
Well, got me interested in finding out the root cause for sure
-Michael
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Michael 
'82 Euro SC 'Track Rat' 22/29 Hollows, 22/22 Tarrets, Full ERPB F/R, Rennline Tri Brace, Glass bumpers, Pro 2000's, 5 pts, blah blah blah
'13 Cayenne GTS