Thank you for the link to Syncro.org. which I have been reading along
with GoWesty, vanagon.com archives,and google returns.

I hope your reply doesn't kill my thread.

I have done so much reading about viscous couplings that I am feeling
rather viscous myself.   I am at the point where I could use the
support of someone providing the information in the context of my
specific experience and questions.

Thank you.

.

On 5/15/05, JonR <jon.hathaway@verizon.net> wrote:
> vanagon teepee wrote:
> 
> >Hi All,
> >
> >I have some very basic questions about the viscous coupling and the
> >best 4WD practices/ operation for my '91 Syncro Camper.  I used to
> >know some of this stuff, but it's been a while and now I only know
> >enough to ask the questions. :-)
> >
> >1) Is it accurate to call the Syncro an "on demand"  4 wheel drive or
> >All Wheel Drive?  It's my understanding that the viscous coupling is,
> >in effect "always on"..with the discs always spinning and ready to
> >transfer power instantly to the wheels with traction. Is that
> >accurate?
> >
> >2) Is it nonetheless possible for my viscous coupling to somehow be
> >broken or not functioning?  I was testing it recently starting from a
> >stop going up a steep slippery road, and I got the rear tires spinning
> >nicely but with no obvious, notable help from the front tires kicking
> >in.  (I am not 100% certain about this...they may have a little.)
> >
> >3) When I pull out the differential lock knob, nothing happens...no
> >light, no lock that I can tell -- nothing. What's the likely cause?
> >
> >4) Under most circumstances where you would want the 4WD to actively
> >kick in whenever needed (driving in snow for example) is it still
> >better to keep the differential unlocked?
> >
> >What ARE situations where locking the differential makes a big difference.?
> >
> >
> >
> The answers to most of your questions are located at Syncro.org
> 
>          JonR
> 
>    NH LiMBO area rep
>       '87 Syncro GL
> '79 LT 28 D highroof conversion Camper
> 
>