Steering Rack Mount S2

[Gearbox]

I have an early S2 and am using a RHD Spitfire steering rack for the car. I was about to use the standard Spitfire rack mounts and noticed that the spacing between the mounts are too wide for my Seven frame. Upon further investigation it seems that the 62 S2 had a cast mount with no rubber bushing and a pin to hold the rack from rotating or sliding from side to side. I also see that the Seven mount is higher than the Spitfire system.

 

I was thinking I could fabricate them from blocks of aluminum, but does anyone know the height of the centerline of the rack to the base? Or if these are available new or used? Thanks Allan

[Dave W]

Allan

You can simply add an aluminum spacer block under the pedestal as you mentioned. But you are 2/3s of the way in adjusting for bumper steer. I would check the bump steer, first before fab'ing the spacer! A .02" change in the spacer can effect the steering. Also do not assume that both sides have equal spacing. Dave W

[Gearbox]

Allan

You can simply add an aluminum spacer block under the pedestal as you mentioned. But you are 2/3s of the way in adjusting for bumper steer. I would check the bump steer, first before fab'ing the spacer! A .02" change in the spacer can effect the steering. Also do not assume that both sides have equal spacing. Dave W

 

Hi Dave;

 

Understood, basically the reason why I am asking the question. I need a starting point and the difference between the Spit's/Elan's mount to what I believe was original to the Seven looks like more than an inch, and as you had stated, every 10 thousands will dramatically affect bump steer. But in setting up bump steer, I need something to fix the steering rack reliably in order to go through the bump steer measurements. From there I could either mill or shim the block to achieve bump steer, but need a hard point to do this so the rack isn't moving all over the place.

 

A British car that is un equal from left to right? Impossible lol. Thanks Allan

Edited December 9, 2014 by Gearbox