Just been out in the car. I let it stand to warm up. Noticed wafts of steam coming off the back of the head - the exhaust manifold side - as the engine increased temp the steam ceased. I drove a mile, parked up and waited for fan to cut in. Needle moving distinctly towards red. Whilst back on the road the fan, I realise, is never cutting off, runs permanently. Needle is certainly not sitting where it should, even without load now. Definitely not right. Rad could be suspect, was told it was 'good' second hand. Air-lock is possible, the system was flushed through at the time of the head works. Tomorrow will talk to my technician who worked on my Beta last year. Thanks for your thoughts, comments. J