I just rebuilt my top end and am in the process of breaking it in now, I am leaking a mistery subsance, I am letting it drip into a mason jar so i can see what it is....(pray for that part to take a while!!!) i am not sure but think it might be from the base of my left cylinder.. if so can i use silicon to aid the gasket ( which is new ) and if i do how do i get the cylinder off next time?!?!?! :baseball_wibble: