g'day, today was the first day of having my car back on the road, and as murphys law likes to follow me, my ass end slid and sent the car onto a gutter(curved one), and once home i look over and under, finding a very nasty oil leak, after a brief steeky beak, there is now a crack in my oil sump, do i have to take out the entire engine to just change the oil sump? or is there a cheating way?