Im happy again ..for a while
The problem was very minor and had nothing to do with the head, gasket, rings or valves
It was water in the back box how it got in there I have no idea as it was only a year old but after all sorts of tests including gas tests on the rad and compresion tests, emission test thats all it was. The mechanic put a new back box on it and the smoke is gone so Im happy again
Thanks for all of your advice