The car is now running a lot cooler. I visited Barry the local Acclaim guru and he tried to check the ignition timing but the crankshaft pulley wasn't even lined up which points to a missing woodruff key. Barry kindly donated one of his spare radiators so I went off to the local motor factor for some antifreeze. Replacing the radiator went quite smoothly (apart from some seized clips - nothing a bit of brute force and some WD40 wouldn't solve!) and I took it for a road test. The gauge stayed on 1/3 only going up to just under halfway when idling in traffic (I'd done my road testing during the rush hour!) and all this with the heater on cold! A definite improvement! As you can see from the pic the old radiator is seriously in need of a recore. The local radiator specialist can do the job for �50 plus VAT. I've ordered a new woodruff key from my local Honda dealer for �1.65 and when I have it fitted I can do the cambelt change and stage 2 of my oil change strategy at the same time. I seem to be finding more and more stuff that needs doing!