Adjusting negative camber and caster on front wheels.

[Marco Polo]

G'day All,

My car is lowered using Tony Harts spring kit and has 15" TR6 wire wheels fitted. I started to notice some unusual wear on the inner shoulder of the drivers side tyre. I took it to the local wheel alignment place and they told me the car had too much negative camber and the drivers side wheel had too little caster angle .
I asked them to remove the shims on the lower bolts which they did and there was still slightly too much negative camber. My question is has anyone shimmed the upper bolts to reduce the negative camber and how much success did you have?

Regarding the reduced caster angle on the drivers side wheel this is also physically evident by the reduced gap, approx. 15 mm, between the tyre and the aft wall of the wheel well, I was considering spacing, with a large washer, between the forward half rubber and the chassis socket, is this a viable solution or does anybody else have another idea?

thanks in advance,
Regards,
Raoul

[mike@thenook]

Hi Raoul,

i had had the same kit fitted a few years back and got the same problem but mine was on the LH wheel. I didn't do anything about it as I put the car back to standard due to grounding problems but if I had tried to sort the camber problems shimming the top of the 4 strut lower mounting bolts would have been the only way to do it I believe

Cheers

[indystag]

Hi Raoul,

Adjustable strut mounts would give additional movement to adjust camber and castor. Suspension Concepts in Australia list adjustable mounts for the Stag and other Triumph vehicles.

[jakesmig]

I've been looking at increasing the castor angle slightly and I've inserted a 2mm washer between the drag strut and the large washer that the strut rubber bears upon.

15mm of a gap is a large difference, is there any sign of impact damage or wear? We tend to get this type of difference in our rally cars over the course of a few rallies and it invariably tends to be damage to the struts / wishbones. A slight bend in the drag strut would cause this.

John.

[new to this]

Raoul

when you fitted the lowered springs, do you also change one of the rear subframe arm mounting brackets,you need to change one to correct the negative camber,look at chris witor site or call him,cant remember if its the inner or outer that needs changing

dave

just re-read your post your on about front wheels sorry dont know about them

[flying farmer]

I have two Stags fitted with the lowering springs, one has significant negative camber the other doesn't, and I haven't touched the shimming on either so it must be a production tolerance thing (BL quality control)?

The one with the negative camber doesn't wear the tyres, the one with no negative camber rather trashed the outside edge on the last track day, so probably wants more negative.

I would suspect the caster is more of the problem, and as Jakesmig says, may be related to past damage. I remember finding this on one of my cars in the past, and having to do some remedial work, but for the life of me now, I can't remember which one it was on!

I prefer his idea for the washer spacing, again, I have done this on one of my cars in the past, but can't remember which one. Don't think it was on the Stags though, so either the Toledo or PI.

neil

[new to this]

monarchs sell adjustable drag struts

dave

[tonypy1]

Might be worth a chat with Chris Witor as he does tie bar caster increase bushes:

http://www.chriswitor.com/proddetail.php?prod=SF373-0084CK

and adjustable track control bushes:

http://www.chriswitor.com/proddetail.php?prod=SF373-0137-90CKSS

[Marco Polo]

Thanks for all your replies and suggestions guys. Much appreciated.
all the best,
Raoul