ok I have my 3.3 off, have the ez start off, the exhaust off. I'm looking at the end of the crank, below the exhaust port. 4 bolts holding plate on. I'm figuring the crankshaft will stay in? or is it a cam deal? if so, do I need to mark anything, for reassembly, or is it one way only?do I put sealant on complete inside of back plate or just a bead around inside edge. And let sit for a day, so it has a rubber like dry coating?