An engine oil leak may develop for the valve cover gasket. Gasket replacement will be required to correct these leaks.Google+
Car Problem Reports
Porsche Cayman Engine Oil Leak from Valve Cover Gasket
Porsche Cayman Problem
Visitor, 2009 Porsche Cayman, 34,535 mi
Dealer isolated to oil leaking into intake system and leaking past tuning pipe seal on to the top of the engin. Performed smoke test. Performed Diagnosis for oil leak. Found air/oil seperator to be faulty. Removed and replaced air oil seperator, Crankcase ventalation pipe, and tuning pipe gaskets. I believe it to be valve cover gasket, watching for additional leak signs.
Visitor, 2012 Porsche Cayman
small oil leak on the right side of the engine, visible on a metal plate close to exhaust pipe