just pulled the head of the girfriends corsa after suspected head gasket failure was lookin at the valves.on two of pots they are white on the other 2 they are pink in colour is this caused by the head gasket failure (has been going for ages) or is this caused by something else that mabye led to the gasket goin in the first place?

pink/ light brown carbon is usual for a healthy engine, (looks kind of like a healthy spark plug colour) white is probably where the antifreeze has crystalised on the valve, depending on what part of the gasket blew (between cylinders, between water jacket and a cylinder, or between oil riser and a cylinder) best thing to do would be to pull the plugs out now and again and they should all be a similar colour (like the back of your hand).

thanks matey think it went between water jacket and cylinder ill clean it up and put it together :)