Eugoogoly

After I changed the steering arm the turning problems went away. Make sure that the flat in the wire is located against the grub screw otherwise the wire can turn on the steering arm.
Push the wire up nearly into position tighten the grub screw until it just pinches the wire then push the wire up a bit more until it becomes loose again. Then you know you are exactly over the flat in the wire and can tighten it up firmly.

I also found it is very important to have the wheel lined up properly with the center line of the steering arm hinge assembly. I got a length of threaded 8mm rod from B&Q and used this inserted through the spring loops to hold the wire still whilst I bent the wire into the right shape with large pliers. It is much easier to do this off the plane than trying to straighten things up on the plane.

Also one last thing which helps preserve the nose wheel, on Landing, apply full up elevator once the plane is on the ground to reduce the weight on the nose wheel whilst rolling along the ground.

Nick