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Avocet · 06-05-2008

I agree that's extreme. Generally, running toe-out makes tyres wear on their inside edges - especially when coupled with negative camber. I've no experience of the 166, but the 164 and 156 are both supposed to run a smidgin of toe-out. I would therefore expect the most wear to be on the inside but as a general indication, by the time mine are at the legal limit on the inside, they are only a millimetre or so off it on the outside.

In order of importance:

1. check tyre pressures.
2. check tracking (best take it to two or three places that offer "free" alignment checks and make sure they all say it's out by the same amount. I've found worrying differences between several large national retail tyre outlets and am not at all convinced that the staff can use the tracking gauges properly! Most front wheel drive cars seem to toe IN, so they might be a bit confused by the Alfa!
3. Check the big squidgy bush at the back of the lower wishbone. If that's soggy, it could cause toe-out.
4. Check the track rod ends.

06-05-2008	#5 (Post Link)
Avocet AO Member Join Date: Sep 2006 Posts: 302 Member car: 1990 164 Lusso V6	Re: why do we suffer from inside tyre wear? I agree that's extreme. Generally, running toe-out makes tyres wear on their inside edges - especially when coupled with negative camber. I've no experience of the 166, but the 164 and 156 are both supposed to run a smidgin of toe-out. I would therefore expect the most wear to be on the inside but as a general indication, by the time mine are at the legal limit on the inside, they are only a millimetre or so off it on the outside. In order of importance: 1. check tyre pressures. 2. check tracking (best take it to two or three places that offer "free" alignment checks and make sure they all say it's out by the same amount. I've found worrying differences between several large national retail tyre outlets and am not at all convinced that the staff can use the tracking gauges properly! Most front wheel drive cars seem to toe IN, so they might be a bit confused by the Alfa! 3. Check the big squidgy bush at the back of the lower wishbone. If that's soggy, it could cause toe-out. 4. Check the track rod ends.