been there, done that,cussed a lot, and ran it.eventually,the oil pressure from the timing chain forced its wat around the gunk and it leaked oil.not a lot,but it always looked wet there.Timing cover will come off without needind to pull the head,you need to pull crank pulley,the first 6 bolts on the oil pan,4 bolts that connect the cover to the block and two long water pump bolts.having said that,Ill tell you that its easier to pull the head,and you probably wont ever forget about that bolt ever again

I dont