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Re: [T3] Purest Type 3 group? (lowering)

On 14 Mar 2004 at 14:26, BOB2TYPE3S@aol.com wrote:

> I got ALL of my measurements while I had the front end of the car off the 
> ground and apart. I started with just a reference measurement of the lower 
> trailing arm unloaded. Then I removed the lower trailing arm and moved it 1 outer 
> spline. Put it together (seated) and took a measurement. Then I removed the 
> trailing arm again, and moved it up 1 more spline. Seated it again and took 
> another measurement. All of the measurements are of the lower trailing arm unloaded, 
> and in the same place (measuring tool). I did it this way so that I could get 
> an idea of how much the trailing arm actually moved per spline, and to verify 
> that I moved both sides the same amount (to keep the car level, and it gets 
> hard to see those little splines). On a side note, this was done on a southern 
> car

Maybe it has to do with the fact that an accurate reading requires that you 
apply enough torque to the  torsion bar to seat the splines all the way in the 
loaded direction. As they arrive from the factory, they're well seated, but 
when we change the splines we have to make a judgment about whether enough 
torque has been applied to seat the teeth. As the angle of the arm changes this 
gets harder and harder to apply even the same amount of torque, since the 
direction we can push is vertically upward, but this is only tangent to the arm 
in the stock configuration.

I'm just speculating, however.

Jim Adney, jadney@vwtype3.org
Madison, Wisconsin, USA

List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org

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