Well its been done a few weeks now but thought i would update as its always annoying when searching old threads and you cant find the outcome of the problem.

I got the car back and connected up the matrix and bled it again and bled no problems this time i think it was just because i ran out of time before it decided to be a pain in the arse and now he has run problem free for 3+ weeks. Temp issues have stabilized and it is suspected that the plastic prop on the water pump was spinning on the spindle when upto temperature as the cam belt and pump replacement have sorted the problem.

Thanks for your help and tips folks.