The few pics I have seen of used disassembled vc also show a grey
colour opaque fluid.

The German site I originally posted does sell replacement seals, but
they seem pretty pricey, and I wonder if the mark up is just as high
as the siloxane fluid :)

Come on Mark, buy some of the cheap fluid, take one of your units
apart, clean it out, measure internal volume, refill with fluid with
correct air amount, then test on lathe :)

alistair

On 3-Apr-10, at 10:45 AM, mark drillock wrote:

I have a couple of leaky VC units on the shelf. I have been tempted to
take them apart and maybe try to fix them. I guess first we would need
to know if new seals are available.

The fluid that leaks out is dark gray but I have no way to know what
color it started out as. It has a strange consistency and settles to the
bottom of the front diff housing rather than mix much with the
surrounding gear oil.

The leaky VCs pretty much freewheeled when installed.

Mark