I feel embarassed to say it but I have not looked at it again since. I am on night shift for the last month and have a bit of a motivation problem when I get up. I reserected my old XR4i so I could get to work and the cossie became lower priority behind a building project at home. I am a bit worried how long you can leave the cooling system open to the air before it corrodes internally so will endevour to get on to it this weekend as I only have 1 more night of ON's and the retaining wall is all but finished. Will let you know what if anything I find. David