As the upper a-arms are not adjustable,
the whole tower would have to be angled
to adjust them. This would require the motor
moving too so that's out!
The lower a-arms use shims to adjust the chamber.
caster is effected if you don't stack equal number
of shims behind both a-arm frame mount pivot
assemblies. 'technically' you really can't adjust
caster more than 1-3 degrees. You'll stress the
lower trunnion pivots and the upright where it
enters the lower trunnion.
The 'shim' (if any was installed on your frame) under
the tower's frame top single bolt mount point, I believe
is only there to adjust to vertical tower position
across the with of the car and perhaps set motor mount
width across the width of the car/frame. The 'side of the
frame' tower mount bolts (4 each side of the car) do not
really allow for adjustment. So the shim is there more or
less as 'filler' or 'factory error' during assembly.
(...sound about right J.K.?)
Paul Tegler
ptegler@cablespeed.com
www.teglerizer.com
----- Original Message -----
From: "James Carruthers" <j.carruthers@rave.ac.uk>
To: "SpitfireMailList" <spitfires@autox.team.net>
Sent: Thursday, July 01, 2004 5:40 PM
Subject: Spitfire Castor
> Listers,
>
>
> Can you adjust castor on a Spitfire? and if so how?
>
> Part of the bill from when I got my suspension set up says they adjusted
> the front castor (as well as camber and toe)... but I don't see how...?
>
>
>
> James
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