Morning all,


My mate who works in a machine shop, has kindly offered to wire cut a couple of 8mm rear camber shims for me.
I can then measure the existing 'fitted' shims, calculate the required total shim thickness, needed to correct my out of spec rear camber angles, then have the 8mm shims skimmed to the correct size.


All that is well and good, but I can't seem to find any dimensions for the shims (1998 X100).
What I need is the O/D, I/D and the PCD & hole size for the bolt holes.


Anyone have an old shim in their garage, that they can measure for me?




Thanks in advance
Tony

 

Back when I did alignments at the Jag dealer on these cars I noticed that they all came with 4mm shims as pretty much standard. I found that installing 6mm shims brought the camber back to spec when the suspension settled a few years later.

I keep a pair of 6mm shims in stock for local customers to take to the local alignment shop in case they are needed.

Just an observation.

bob

 

Thanks for the reply Bob,


Could you possibly measure the 6mm shims that you have in stock, for the Outside diameter, Inside hole diameter and the PCD & diameter of the bolt hole sizes.




Many thanks
Tony

 

I measured mine up and made a drawing, email me and I will send it

samsteiner@compuserve.com

 

I found that the adjustment was not quite linear with shim thickness. good luck

 

Why isn't this a standard part anyone can buy? Seems to be a easy fix to take some of the negative camber out of lowered cars.

 

The shims ARE a standard part that you can buy from a Jaguar Dealer. The sizes run from 3.5mm to 7.5mm.

bob

 

It may not be a perfectly linear calculation, but as long as I remove about 1.5 degrees of negative camber from each wheel, it will be a lot better than it currently is.


Once again, thanks for the drawing Sam .........

 

Thanks, Bob.

My tire wear in the rear doesn't seem too bad, but when I put softer/stickier/more expensive tires back there, though $60/each for $1 worth of Steel seems like a rip off, $120 seems like cheap/easy insurance to avoid prematurely wearing out $600 in rear tires.

 

This is from a email I had with Paul Pavlick and his experience that I used as a base for me when I lowered. The problem is you will see lowering springs at 1" 2" etc, but after settling it maybe somewhere near that. for 2" Amadesh springs I used 7.0 shims from the orig 4.0 shims. My camber was within spec afterward.

Jack: I "observed" the Camber just by using a small level held against the rear wheels with the car on a level driveway.
I estimated the camber at about 2+ degrees. I calculated the change in Degrees of camber per mm and came up with the 7.5mm setting. It seems to have changed the "observed" camber to about 1/2 degree.

Thank you Paul for your insight, I'll have to think about this, it looks like it's about 1/2 degree / mm, I'd hoped to be able to change them while the subframe is dropped, not sure if guestimate would be appropriate or wait till I can take measurements on car. The shims are pricey so I'd want to get it 'right' . Thank you again Jack

 

Update on rear shims: Was quoted $150 for 4 shims from a Jag dealership. CRAZY!

 

Why do think you need 4???
Only 2 are required.(one for each side)

bob

 

I have no idea. This was what my mechanic told me.

 

He probably wants to have some spares and YOU will pay for them???

bob

 

You still have a compuserve address?

I used to have inbox@cis.com .... grabbed it when no one was really into these things.

 

It's also bad mojo to stack them. The axial centering is via ridges one the shaft and output flange.