Defender Td5 steering wheel wobble when doing 40 mph plus turning right

Good evening everyone,
My Defender has started wheel wobble when turning right above 40mph. Straight line ...great. Left very slight wobble.
Now done the wheel balance bit etc, new steering damper etc.
Going to check the pre load on the swivels next but do you have to fully strip down or can you check by removing track rod end only leaving wheel bearings in etc?
Pre load I believe is 1.4 to 1.7 Kg. Removing shim obviously increases pre load on the bearing.

Any tips guys before I start tomorrow?

Norton643 said:

Good evening everyone,
My Defender has started wheel wobble when turning right above 40mph. Straight line ...great. Left very slight wobble.
Now done the wheel balance bit etc, new steering damper etc.
Going to check the pre load on the swivels next but do you have to fully strip down or can you check by removing track rod end only leaving wheel bearings in etc?
Pre load I believe is 1.4 to 1.7 Kg. Removing shim obviously increases pre load on the bearing.

Any tips guys before I start tomorrow?

Click to expand...

Check the condition of all the suspension bushes, using a small pry bar.

Turboman said:

Check the condition of all the suspension bushes, using a small pry bar.

Click to expand...

Pan rod bushes and TRE's can give similar symptoms so worth checking those.

It might also be worth seeing if there is any play in the swivel as well as checking the preload. Get someone to sit in the vehicle with their foot on the brake (removes any play form wheel bearings) and hold the wheel at 6 and 12, and rock to see if there is any movement. Any play here (when the brakes are applied) will be top swivel pin. This will require shims removing to increase the preload, or worst case, stripping to replace the pin and the bearing/bush dependent on age.