Ok so i pulled the engine down completely this morning and the skirt on the window side of the piston has let go and gone through the top end....
http://img.photobucket.com/albums/v1...s/IMG_0040.jpg
I've had this noise in the engine for weeks that i though was very aggressive pinging so it looks like this may be the cause. I'm going to let it sit for a couple of weeks until i decide whether to get rid of it or not. I'm now kind of thinking of getting new crank cases (as they are buggered) and maybe a new RD head kit when Dazza gets them in a week or 2 as the bore is pretty average. I was speaking to Dazza about these kits the other day and they will be quite reasonably priced.
So i've got some decisions to make but in the meantime does anyone have any CAG crankcases they wish to sell me. Prefferably new or good s/hand? PM me.