Hope it isn't your rocker cover that's leaking oil, mine was leaking, I thought it might be that, they don't have rocket gaskets it's a special sealant, and the rocker is actually the cam carrier so if the rocker comes of it's a new cambelt aswell as its all tied in together has it got a aftermarket induction kit on it? Because that's what caused my leakage, someone had bodged one on and then bent the oil breather on to it, and it was building the pressure up to high and spitting it out of everywhere! Hope this helps