Jim,

The wiper arms have soft metal where they fit over the drive splines.
You have to pull the rubber plugs ... remove the little 10mm nuts ...
clean the soft metal out of the splines where it ground out of the wiper
arms then refit the arms and tighten the nuts.

If too much of the soft metal is gone from the arms then a small washer
under the nut will usually fix it.  If the arms are really used up,
folks have been known to put a small amount of steel wool where the soft
metal was.

Hope this helps.

Mike
Houlton, Maine
'84 GL 7 pass
'85 GL Westy

Jim Quan wrote:
> So I am getting in my van this afternoon and accidently hit the wiper
> switch and my front windshield wipers move down over the front of the
> van and back up over about a quarter of the windshield. As if they are
> moving in the opposite cadence the were supposed to. Why is this
> happening and how do I fix it other than adjusting the wiper arms on
> the spindle.
>
> Jim
> 1991 Syncro Westy
>