Thanks for all the help, I managed to get chance to have a look the other day and it turned out to be a clip that had broken inside the motor, I managed to replace it though, and they seem to be working a lot better, it's still not cleaning the entire windscreen, there seems to be a little bit...

I've tried what you said and it all seemed to be ok, the movement off the screen was the same as on, I've also replaced one of the wiper arms as it was completely worn, however it's still the same, I did notice that when I was putting them back on the screen there was about 3-4 inches before...

Recently I bought a land rover 110, it's been great other than the wipers are only going from the 9 O'clock position to the 12 O'clock, leaving large areas of the windscreen unclean, I've replaced the wiper wheel boxes and wiper arms on both sides, however the problem is still there, does...