FredR

I recently had soem work done on the steering rack [delrin bushes from Roger,track rod ends, gaiters sort of thing] so a visit to the alignment shop was required. Despite good efforts tog et the alignment in the right ball park I was surprised at just how far it was out but in all fairness the steering felt somewhat no descript [not surprisingly].

Carrying out the alignment was no problem but another issue came to the fore. Since I purchased this particular 928 I inherited an issue in that on the rear drivers side the minimum camber I can dial in is a bit more than 1.5 degrees. No real problem as that is what I normally run but I am intrigued as to why I cannot get it lower if I wanted to given stock rear camber is about 0.5 degrees if my memory serves me correctly.

My presumption is that maybe something is a little bent due to some minor collision with a curb by the PO. Anyone with any thoughts on this? The caris lower than stock with Eibachs/Bilstein gas shocks on the rear but not that much- just a bit lower than the bottom end of the stock range so I doubt this is the cause.

Bottom line the steering is restored to where I want it to be and it is very precise.

Regards

Fred R

Ispeed

You may have a flat spot on the rear crossmember where the eccentric is that prevents you from reducing camber by as much as it should, or you have some tired original rubber bushings.
Low ride height makes getting the rear camber in spec more difficult.

85euro928

Fred,
I can't offer any insight on the camber issue but I can tell you that if your LCA is anything other than perfectly straight stock keep an eye on it. I inherited my car with a slightly bent control arm, probably due to the PO's run in with a curb, and overtime, and maybe 3k miles, it went from having a slight arc to a full blown bend. I would think any bent suspension componant would cause the type of alignment issue you're experiencing. Just my 2 cents.

FredR

Thom,

I know the history of the car since new and whereas little bumps can never be eliminated for sure the problem has been pretty constant. Indeed to get minimum camber available one has to undo the bolt and lever it out to gain the last 0.3 of a degree which suggests some wear on the face the cam pushes against.

I also like the suggestion that it may be tired bushes - the heat here plays hovoc and I am always amazed that the 928 suspension system stands up as well as it does. But then if you compare the size of those rubber bushes to other relatively top end cars I reckon they are pretty chuncky.

Fred

Speedtoys

Time for some bushings back there.

Hard suspension bits start to sag in the bushes..and you cant get things to the right places in space..to get good consistent alignments.

Lizard928

First make sure the car is at stock ride height. This is the #1 source of all alignment problems.
If his LCA was bent this would result in less camber as suppose to more.
Yes replacing the inner lower bushing is a good idea.