On Sat, Apr 3, 2010 at 10:20 AM, Alistair Bell <albell@shaw.ca> wrote:
> yeah,
>
> i think its a polydimethylsiloxane. but molecular weight unknown, and
> correct viscosity...
>
> Derek Drew mentions he has a bottle of the right stuff, but was warned
> against trying a refill by some VC expert. I think that is related on his VC
> page (linked by neil below)
>
> I don't think that vc refilling will ever become an easy do it yourself
> project. I just like to de-mystify the subject :)
>
> alistair
>
>
>

Right. Gee. You'd think DC et al would make their "mix" public.   ;)

I assumed VC fluid fill was standard fare for Syncro owners. Seems
just getting part out can be a challenge for some. (looking quickly at
samba posts)

Even the quote below from
http://www.vanagon.com/syncros/technica/vc-expert-interview/index.htm
would scare me off:

"The percentage of air in the viscous couling is critical, and the
percentage is almost always a low of 80% and a high of 86%. He said
that if you went above an 86% fill then you would have the VC
activating on the highway during normal driving and a dangerous
situation would exist.    ........"

I wonder if a VC from another common AWD vehicle could be made fit?
Maybe one where knowledge of filling accurately is more prevalent?

Neil.

--
Neil Nicholson '81 VanaJetta 2.0 "Jaco"

http://tubaneil.googlepages.com/

http://groups.google.com/group/vanagons-with-vw-inline-4-cylinder-gas-engines