Thanks Max, good one that is all it was, the gears had been fitted the wrong way around. How could anybody pull the gears out, put it back together, find it doesn't work and just leave it that way. Just in case anybody wants to remove the gear/clutches they are held on with a roll pin that is located through the cut out sections in the gear, you rotate the shaft till you can see the pin and then you can punch it out and the gear/clutch comes off as a complete assembly. Not sure how that comes apart.
