Hi thanks for the replies
when you say an L ring piston ring do you mean the top ring is in the shape on an L and the bottom is Normal, as this is what is on the piston. There is no play so would be good to just change the rings I've brought these since which I'm hoping are the correct rings for it
I also have a piston kit which I was assured would fit even though it says it's for a d e model but wasn't sure still so brought the genuine rings after too