****** STOP PRESS ******
Everything comes to he that waits...or something like that. Anyway I had given myself a week to get the engine started and had spent three days moving cars and stuff around to get at the S1. So we did all the usual stuff new plugs, fresh petrol etc but to no avail. I decided to do a bit of research on the subject and decided that despite doing the valve timing half a dozen times i was not doing it right or how else would the engine be trying to compress two cylinders at once. So reading the workshop manual again a thought occurred to me that on the exhaust valve the clearance to be checked was on the closing of the valve not the opening. Armed with this thought I checked the closing up of the clearance as the valve was closing around bdc, removed the dowel, turned the crank to TDC, replaced the dowels, did the ignition timing, put the plugs back in, reconnected the leads, spun it over and it started on all 4 cylinders! WOWSER! It had to be switched of fairly quickly as the timing chain cover was off. The next jobs will to be plumb in the radiator and heater, put some oil in as most of the sump contents are sprayed round the floor, put some water in and see if it will run OK.
Relieved of Redcar