Technical -8~10 degrees steering 'bias' while wheels moving

Currently reading:
Technical -8~10 degrees steering 'bias' while wheels moving

StoneNewt

Scandinavian Passion....
Joined
Jun 16, 2006
Messages
2,536
Points
360
Location
Cambridgeshire
This is a little strange, you're driving along, you can feel this pull towards left, if you let the steering centre it's about -8~10 degrees, now if you dip the clutch and let the steering guide you it ends up almost dead centre. Now there is no indication of any uneven wear on the tyres, considering they're getting round to about 3mm tread left I think it should be evident if any exists.

Now for the fun bit, I've got a little bit of a 'test circuit' going nice quiet roads that have been recently resurfaced (the only ones in Cambridgeshire? the rest of the roads are s**te). What I have noticed is that braking hard the car pulls to the right slightly on a flat road and feels down right unstable braking medium hard through a shallow left corner (camber is high right to low left), it's almost like the back wants to break away, 'up hill'. Round the same corner in the opposite direction the car is rock soil beyond inside front lockup. Now doing the same thing in my Sei' & V70 the results are rather different, both of them are absolutely planted braking when bearing left (the rear of the car is going 'up' the camber of the road), when bearing right the Sei' is very nervous with the V70 feeling like it's struggling for neutrality (the V70 has the active chassis option and you can feel it working).

A friend suggested that one of the springs has got 'twisted' and is applying a force to the steering. I think that maybe the brakes have become unbalanced some how (last MOT/service I got an advisory that the front pads were wearing unevenly), I have tried bleeding the brakes but I don't seem to have any air in the system & the fluid looks fine.

Any suggestions people?
 
Nothing physically seems wrong (well maybe I need some bushes but it's marginal). However on the left hand break disc you can see various ghost markings of where the pad has sat for a fair old time (7 different positions all over that disc). Also there's about 7mm left on the right pads and 6mm on the left pads, should I be worried about this?
 
S**T! I looked at the Punto and realised the drivers side was about 3" higher than the passengers side, sat in it to grab my Haynes and it dropped to level :eek:... I'll be using the Sei' for a while it seems
 
Back
Top