Swapped the clocks again for some 16v ones last night and its all OK now. 'all dash lights out' was mis-communication, was all 'clock lights' out........yes RJ all three bulbs were blown, that'll teach us to check first...........doh! :embarassed: Two out of the three were blown in the new ones too, thought the fuel gauge was knackered in the new one as well at first and pulled all the fuse box out etc looking for dodgy wiring..........turns out the git had let it run so low there was no so**ing fuel in it, popped my gallon of mower fuel in it.....and hey... we're in the red :embarassed:. Thank f*** for that! Moral of the story, if you're changing clocks, check all the bulbs first & make sure there's some fuel in it.
BTW, I put a 9v battery directly across fuel gauge terminals of the dodgy clocks, turns out it was OK but feeding it from the plug socket it would not work, I notice there is a 'nick' in the blue printed circuit which is probably the fault.