HI BUD JUST CHANGED ME HEAD GASKET ON ME 3 DOOR AND WHEN I STARTED MINE FOR THE FIRST TIME IT WAS MISSING ON ONE TURNS OUT KNOCKED PLUG LEAD OFF THE CAP JUST CHECK JUST IN CASE.IF ITS THE HEAD OFF ITS A PEACE OF PEE (2 HOURS AND THE HEAD IS OFF)DONT KNOW WHY PEOPLE MAKE SUCH A FUSS ABOUT IT .DONT WORRY IT CAN BE SORTED.IF YOU NEED ANY POINTERS LET ME KNOW