A couple of things to check: firstly, there's a little voltage stabiliser up behind the dash which frequently suffers from a poor earth. If this is the case then the temp gauge will over read. Secondly, if you can get hold of one of those infra-red thermometers (I got mine from Amazon for 30 quid or so) then you can check the actual temperature at various places around the head and cooling system.
Last edited by Hamwich; 04/08/12 11:51 AM. Reason: grammar
