"Steve Lusardi" wrote in message
...
Do so at your own risk. Yes it will work as long as all components are
functional. If there is a fault, it will damage both systems.

There is no extra risk. Each alternator has a diode bridge at its output, so
current cannot flow from one alternator to the other. If such a bridge
fails, it either isolates completely (no harm done) or is lets current flow
from the terminals through the windings. In this case, the result will be
the same on a single alternator with the same failu it will burn out.

Meindert