suspension geometry

[david langford]

Hi guys
   Car went for it's MOT and the inspector picked up on some very uneven wear on the fronts.
   I've had a quick google looking for cobra mk111 settings and didn't come up with anything. Does anyone know what they should be or where the info might be.
   Thanks in advance Dave

[Flyinghorse]

I would look at the chassis handbook.
   Is there much adjustable on the 428 bar toe in/out,and ride height with spring perch settings (i dont know)?
   
   I suspect Andy among others would know.
   
   Might be worth having a session on a local wheel alignment machine. Look here for ones that use "Pro Align" equipment near you and see what readings you have.
   
   http://www.alignmycar.co.uk/
   
   Graham

[BE774]

If there isn't one with the above machine near you, try your local Kwikfit. I wouldn't recommend them for anything else, but the Telford branch did an excellent job of four wheel alignment on my modern. They have the latest Hunter equipment which displays the settings in the waiting area and the technician called me in to the car and explained the problems and what he was going to do. He then adjusted it all within tolerances for a very reasonable price and provided me with a before and after printout. All for substantially less than £100.
   
   Your problem which you recognise is that you do need the original specifications against which it can measured.

[cliffordl]

Try Thunder Road Speedshop. They've been sorting these cars for years.
   
   01483 763399

[david langford]

Morning and thanks for the replies.
   
   Had a look in that old fashioned thing called a book, which I'd completely forgotten about, and there was some measurements. Hopefully that'll be all that's needed to sort it out.
   
   Thanks guys.
   
    Dave

[Flyinghorse]

David,
   I would be a good idea to post them up here for interest and for anyone else wanting such measurements in the future.
   
   regards,
   Graham

[david langford]

What I have are some figures under the heading; Removal of front hub.
   
   Castor angle 3 degrees
   Camber angle front Nil
   Camber angle rear 2 degrees negative
   Toe in front wheels sixteenth of an inch
   King pin inclination 11 degrees
   
   Hopefully there's something in there for someone to be able to sort it out.
   
    Dave

[Flyinghorse]

I would check if that toe in is for a single wheel or total toe in.
   I suspect the former as 1/16 inch is .0625" which is hardly any toe in at all,and its referring to a single hub removal
   
   In this case total toe in would be .25" (.0625*4) or about 0.6deg
   
   Many of the alignment centres may not be able to handle inches.
   
   Graham

[Emmanueld]

I would probably be better to use a laser alignment system since the chassis may not be all that straight!
   
   E