Is the Suspension Geometry (Castor, Bump steer etc) Correct in the Book?
Minimal Bump Steer is a requirement for registration in W.A. (2mm over 2/3 suspension travel). To achieve this you need to narrow the Escort Steering Rack. Various combinations of dimensions are quoted, but something in the order of the outer rack housing has too have 100mm cut out of the middle, the inner rack has to have 90mm removed. New threads are cut in the ‘cut’ end of the inner rack. To bring the (outer) tierod ends back to the width of the wheel hubs, threaded spacers are required. Jamie Guard says he can do all this for around $150. Barrie Nelson, Trafalgar Service may be cheaper. A lot of people have interpreted the diagram of the top front wishbone incorrectly, and ended up with zero or ‘negative’ castor, rather than +5 degrees 30 minutes. Here is an expalnation by Peter R Thomas of Victoria: A better explanation of the castor angle problem. The vertical distance between the pivot points of the lower and upper ball joint for the TC/TD cortina uprights is approx 225mm. To ac
