Tuscan Steering Rack Centreing

[Oneball]

Is there a mark or slot or some other king of tell-tale to identify when the rack on a 2002 Tuscan is centred in it's travel? Or is it a case of just getting the middle between full left and full right lock?

My steering wheel turns about 15 deg more one way than the other and the lock's worse turning left, I'm also hoping that sorting it along with a few geo issues will improve the front end.

[Basil Brush]

Have you measured and compared the visible threads on the track rods as a quick check? If OK, there are some nylon disc spacers on each end of the rack used to limit lock. Maybe one end has more than the other?

[Oneball]

I’ve not checked the relative length of the track rods yet, but it’s on the list of things to do.

[Oneball]

Thanks, I'll have to have a look at the spacers next. There's only 2mm difference in how far the track rod ends are screwed on and there seems to be the same clearance between the wishbone and tyre at both locks.

Right lock



Left lock

[Oneball]

Decided to start from scratch and do a full setup on the front suspension, sorting out the bump steer was on my list of things to do anyway.

I've managed to space the rack up by another 4mm on top of the 5mm spacer that was already there and nothing is fouling.

Centred the rack lock to lock and screwed the track rod ends on an equal amount.

-0.75 camber. 4.75 caster 7.5" toe out

And it's transformed, so much more stable now, you can actually get a move on over a bumpy country road and the lock is now the same left to right.

Downside is the steering wheel is no longer straight and I can't for the life of me get it off at the moment.