As " anthont hunt " suggests , front geometry has got to be well out . Front wishbone bushes are very common cause of tyre wear on this car .
p.s , found this which confirms knacked bushes ,
DEAN0
Full Member
Join Date: Feb 2006
Location: Preston - UK
Posts: 321 Don't forget that the rear bushes on the front wishbones of the 130TD1 sport and FR TDi are crap.
They have voids in them and allow the wishbone to move around.
This causes TOE OUT to be added during thottle and TOE IN to be added during braking.
With the torque of the diesel - the car is allways going TOE OUT when you boot it and killing the tyres.
Get the bushes at the back of the front wishbones changes for the solid rubber ones from the CUPRA TDi.
Between the bushes and the 4 wheel tracking I now see much less wear on the tyres.
DEAN0
Full Member
Join Date: Feb 2006
Location: Preston - UK
Posts: 321 Quote:
Under braking the front wheels will be pushed backwards, pivoting on the front bush, causing them to toe out.
Under acceleration, the front wheels will try and pull forwards, pivoting on the front bushes, causing them to toe in.
Thats what I thought at first but - NO - not correct.
under braking the WISHBONE OUTER PIVOT ( Not the wheels ) are the items being pushed back on the ibiza. This happens because of the void bushes at the back of the front wishbone.
When this happens the lower outer pivot on the WISHBONE moves back and in towards the steering rack. This effectively reduces the track width vs the steering rack and pushes the front wheels to TOE IN.
Under throttle the opposide happens - The wishbone outer lower pivot moved forward and out - effectively increasing the track compared to the steering rack and causing the front wheels to TOE OUT.
I had this checked and measured by a friend who sets up race cars and works very hard to remove suspension induced geometry changes.
Quote:
Where did you get the bushes done and how much did it cost?
The bushes are genuine Seat Ibiza Cupra ones. They are ( or were ) about £10 per side. Fitting them is the hassle.
Hope this helps to solve your problem .
Posted Jan 28, 2010 (14 years ago)