Yesterday even with the temp in single digits my 86 syncro still turned over
very slowly when trying to restart it after it had been shut off just a
minutes earlier.  Just wondering what causes this?

I've had 3 Vanagons 2 air-cooled and the water cooled syncro.  This has been
a chronic problem on all 3.  Is this just the nature of the beast or can this
be remedied (replacing starter never made much difference).

Blitz