turbo, maybe thats the case, but i dont know. the connecting rod (if it is- connectin the piston to the shaft- is a bit loose) i dont know if thats normal or not. but maybe thats the reason why the piston hits the wall.
paulfox, that may be the case there in US but here, engines are pretty pricey. but im lucky on this as its on a super low sale

so do you think there's no hope for this one?
thanks!