I know to all you aircraft motor nuts and even you auto nuts this may seem crazy, but i have oil coming out of my exhaust manifold on my number two cylinder. This is either a blown jug or rings are shot, its also coming out of the bottom spark plug but i know that the helicoil is shot, and that it may be junk but oil should never be getting there in the first place, i dont really have the money to have it worked on by a aircraft mechanic and theyre not easy to come but up here in illinois so i bought an overhaul manual to try and replace the jug, am i in the right or .............what do you guys think you have a lot better knowledge about this stuff than i do.....can i replace the jug on my own.....i do have pretty good knowledge of car motors.......PLEASE HELP