Caster adjustments?

[San Diego GTR]

When I took my GTR to the alignment shop the tech said there wasn't a caster adjustment. Does anyone know how to adjust the caster or is it preset and not adjustable?
Thanks,
Paul

[GTR-TT]

San Diego GTR said:

When I took my GTR to the alignment shop the tech said there wasn't a caster adjustment. Does anyone know how to adjust the caster or is it preset and not adjustable?
Thanks,
Paul

You can't adjust caster on the standards A-arm. On the rose jointed version you can.

[60mph]

Is your castor out then ? If so in my experience the top wishbones are sometimes not identical .My castor was out on the nearside ; the top wishbone was visibly pointing more towards the rear than the drivers side one[RHD]. I did check the castor myself and it WAS out . The factory supplied another wishbone and both sides are now OK .Hope this helps.

Frank

[San Diego GTR]

One side has more caster than the other because it is easier to turn to the right than the left which is an indication that the caster is different from side to side. I don't know which is "right" but they are different from each other.
Paul

[GTR-TT]

San Diego GTR said:

it is easier to turn to the right than the left

Why?!?

[San Diego GTR]

GTR-TT said:

San Diego GTR said:

it is easier to turn to the right than the left

Why?!?

When I had the car aligned, the caster wasn't exactly the same side to side.

[GreenV8S]

San Diego GTR said:

One side has more caster than the other because it is easier to turn to the right than the left which is an indication that the caster is different from side to side.

There are lots of other things that can make the car easier to turn one way than the other - are you confident that caster is the problem here? There have been some horror stories here about bent wishbone attachment points, and if the camber is not adjustable it would seem unlikely to be different from side to side unless something was bent.

[San Diego GTR]

GreenV8S said:

There are lots of other things that can make the car easier to turn one way than the other - are you confident that caster is the problem here? There have been some horror stories here about bent wishbone attachment points, and if the camber is not adjustable it would seem unlikely to be different from side to side unless something was bent.

I don't know how I would have gotten a bent wishbone. Are you referring to the upper or lower A Arm? I am the original owner and I've never had any impacts that would bend anything. So to answer your question, I believe it is the caster setting but am not absolutely positive. By the way, the difference in turning effort is modest. Perhaps I'm just super picky.
Thanks,
Paul

[GreenV8S]

San Diego GTR said:

I don't know how I would have gotten a bent wishbone.

I was thinking particularly of the bent wishbone attachment points that we were shown here a few months ago.

If it's not adjustable but it's different from side to side it seems to be the two sides must be different, either because one of the components is unmatched or something has bent.

ETA Just to clarify, have you measured the camber and confirmed it's actually different side to side?

Edited by GreenV8S on Sunday 8th February 22:48

[San Diego GTR]

I'll check the front tabs next time I'm out in the garage. Thanks for the ideas.
Paul

[60mph]

Take the wheels off and run a tight narrow string over the top ball joints on the top wishbones you will probraly see that the wishbones are not idenyical when you look down from above.Thats how I found mine .Steering is fine now .

Frank

[GTR-TT]

San Diego GTR said:

GTR-TT said:

San Diego GTR said:

it is easier to turn to the right than the left

Why?!?

When I had the car aligned, the caster wasn't exactly the same side to side.

I misinterpret your previous post. Sorry! please continue