> The Bosch alternators for Vanagons are 14 volt nominal. You need to
> measure this right at the alternator output stud. If yours is much less
> than this at that point you can replace the regulator. If yours is near
> to 14 but you want it even higher you can buy an adjustable regulator to
> replace the stock part.

I have watched voltage measured at the battery on my '87
Syncro.  When I fire it up, it is about 14.4V.  Then over the
next ~15+ minutes it goes down.  After a while it gets to
13.8 or maybe even 13.6V.

Meanwhile, my Jeep Cherokee shows 13.9V on the dash meter
all the time, never varying.  Well, before I start it, it
shows 12.X or whatever, but when the motor is running, it
never moves from 13.9.  Of course, I don't know how it it
is wired in....

But I don't know what to make of the two different
observations.  Any ideas?

Richard