After having a shit RR figure and knowing that my frst was down on compression i decided to get physical with it... with help from manchester mike we stripped the engine down and found this...





I'm guessing that the chunck brocken between the rings caused it...

Now to sort it out... They are mahle +0.5 pistons, only seem to have any damage on one of them... should i change that one or is it better to change them all? also while they are out should I change the rings? they are pretty sharp, i've been told this is a sign of ware?

Also where can i get my hands on a +0.5 piston cheap, and do I have to replace with mahle or can i use something else such as AE?

Cheers in advance