Hi all, recently had the dreaded swirl flap problem. Started a few months back on me way home, suddenly had loss of power, so pulled over then heard a mettalic rattling noise from the engine. After revving a few times it disappeared and drove normally after that. However i did notice the car wasn't starting as normal. Got it checked at a garage and the swirl flap fault was found, had blanking plugs fitted but no sign of missing flap! The garage test drove it and said it seemed ok, this was the case until now. When i heard the dreaded rattling noise again. This time however the engine felt like it was gonna come out of the car so switched of straight away. Removed the head (what a night mare that was) anyway foundthe missing flap sitting on top of No1 piston. Had the head checked and the valves re seated and apart from a bit of pitting no major damage all cleaned up ok. Same with the pistons a bit of pitting and denting but no holes or crack's. So i'm hoping that i might have got away with it fingers crossed. Can post pics before i reassemble if anyone wants to give a second verdict.