adjustment/allgnment optiions rear wheel

[porsche356]

Noticed today that the distance between the front and the rear wheel of my 997 c s is not equal. Left and right differ nearly 0.4 inch. The right rear wheel isn't too far to the front. The car had it's wheels recently alligned. Could it be that the shop made an error or can't the distance between front and rear wheels be adjusted? (only angles etc).

So, question would be: is it possible to change positions (horizontally) of the rear wheel. Is so, how?

Thanks, frank

[RFM]

Do you mean that the distance between the left rear wheel center and the left front wheel center is different than the right side? This is not adjustable, big chance that the car have got an accident. What you can do is take a look for bended control arms, struts or sub frame transposition on the front or rear and do some measurements. The last option is to put the car without the suspension on a bench to correct the chassis points.

[porsche356]

Hi RFM,

This is indeed what I meant. You are completely right about the accident. Car has had a right rear accident. Car drove up the car. As far as I could see (saw some pics), this was not a big accident (rear side panel had minor damage and the wheel was not hit).

I think that I should have the car checked out. I was told that it was possible to allign the wheel horizontally as well. Is there an easy way to check whether something is bent? Distance on the right side is indeed shorter than left. I have just bought the car, so they have to fix it, but I do not like to have a car which is not straight.

Thanks for the help so far!

Frank

[RFM]

Let some one with experience check for traces and to do measurements, dealer or body shop.

[frafoss]

If the difference isn't big you shouldn't worry to much. I'm on my second 997 now, both without accident, and both have a difference at the rears left and right. On both cars it seems that the rear right wheel is about 3-4 mm wider. My curret car has been aligned and corner weighted.

[porsche356]

finally some news:

The are two suspension arms not straight (slightly bend) and one bold has been slightly bend. They have measured everything and the subframe is ok. I do not want to doubt there diagnoses, but just curious how two bend arms (there are more than 2 arms?) could make the rear right wheel to be alligned 11 mm too far the the front (nose) of the car. Does somebody have a picture or a diagram of the rear wheel suspension and arms?

Thanks, frank