On Sun, 23 May 2010 19:18:22 -0600, Bob Stevens <mtbiker62@GMAIL.COM> wrote:
Bob,
You have the methodology right, but Warren credited Peter at Van Cafe.  To
my knowledge, GoWesty has never promoted so simple a remedy, but instead
markets their laser alignment tool.

I agree with you that this procedure could likely correct a lateral
misalignment and the vibration relating thereto, but not a misalignment in
the vertical plane because after tightening the bolts on the front
differential the down-angle, front-to-rear, of the front differential will
be the same as it was before this procedure; only the introduction of shims
can change the angle.

One has to wonder though, what the respective front diff/transaxle down-
angles were when the syncros left the factory in Graz, and what the
tolerance was for the angles being different.  Has anyone ever seen shims
on a syncro front differential that appeared never to have been removed?

Bill in Idaho

>You may or may not have seen this on the Syncro list but .....
>back when Warren was alive, he was puzzling over how to find a sweet
>spot for his p-shaft to eliminate the vibes. He called Go Westy, thinking
>that since they seemed to produce such expensive gems of the Syncro
>iteration, that they would likely have a method for perfecting this.
>
>They did/do: loosen the frame-to-differential bolts, drive around for a few
>days and maybe 30-50 miles, or until the vibration is gone, tighten those
>bolts and voila!
>
>Warren did it and said it worked. I have no experience with it. What you
>say seems to be true, that the transaxle should be very close to 4 degrees
>down. The differential will "adjust" itself given this opportunity. My only
>puzzlement about this method is that it has no possible way to adjust up/
>down as that requires spacers, usually at the front (van front) of the
diff.
>mount points to point it more up or down.
>
>I do know that the prop shaft I have only needs the transaxle to be pointed
>down "between .8" to 1.2" for it to be vibration-free, which mine is. Even
>after just finishing putting a Subaru 3.0 in the van, with a "high-mount"
>installation, which provides about 2+" more ground clearance, so the
>tranny is pointing down more than stock.
>
>Bob Stevens
>'87 Syncro Westy
>
>On Sun, May 23, 2010 at 6:05 PM, Alistair Bell <albell@shaw.ca> wrote:
>
>> had time to test my Mk II laser pointer alignment tool thingy today.
>> It is to be used to determine the alignment of the front diff and
>> rear transmission in my syncro (which still has minor vibes around 60
>> kph)
>>
>>