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Re: [T3] Bouncing front wheel


On 21 Aug 2005 at 17:07, DAVID ENGLISH wrote:

> Hello all. I have a problem I need some help with. I
> have a 71 Square, automatic. While driving down the
> road if I hit a small series of bumps in the road,
> small pot holes or sometimes when I change lanes, my
> right front wheel just starts bouncing or shaking. I
> have to slow way down (20 to 30 mph) to make it stop.
> Does anyone know what may cause this?

If it's really just the RF wheel, then I'd suspect that the RF shock absorber is dead.

You can check it by disconnecting one end and seeing if you can collapse and 
extend it without any friction. You should probably get your tires balanced, 
too.

If it's both wheels.

The first thing you should do is check to make sure the upper torsion bar has 
not come loose. Grab the top of one of the front wheels and yank it back and 
forth, sideways. You may feel a little play, but if it moves a lot, you have a 
loose set screw in the left upper trailing arm. It's actually best if you can 
get someone else to do the shaking while you get under the car and watch where 
the trailing arm comes out of the axle beam. It should not move even as much as 
1mm when it is pulled from side to side.

The second possibility is that you have a worn out steering damper or steering 
damper bushing. This is a kind of shock absorber that hooks into the Pittman 
arm that comes out of the steering gearbox.

Whichever problem you have, it's important to get it fixed.

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

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