Well I just replaced the big end shells, this is the first time I have ever done anything like this and didn't want to jump in to deep. It was actually a fairly easy job to do, took about 2 hours all in, half an hour of that was trying to remove a sump bolt that had rounded, grrrrr. Going to fill with oil tomorrow after I source a sump gasket and see what happens. I believe that I found the one that was knocking as when I removed the big end cap, there was noticeably more oil in between the shell and the part of the crank that it bolt around (sorry don't know the name for this part) Indicat