The Robert Bentley Volkswagen Vanagon repair manual 1980-1991 shows
the flow going from the engine to the heater valve then thru the core
on the forward heater and on the rear seat heater thru the core then
to the heater valve and back to the engine.
The 1983-1985 engine outlet to the heaters comes from the passenger
side head on the VW engine and the return from the heaters connects
to a crossover pipe which runs runs from the passenger side to the
driver side of the engine.
The 1986+ engine outlet to the heaters runs from the distribution
unit supplied by an outlet on the passenger side head and the return
from the heaters to a pipe that looks as though it eventualy ends up
delivering to the expansion tank.
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--- In subaruvanagon@..., Markus Benne <markus@c...> wrote:
I'm ready to hook up the heater ports on the engine to
the heaters on the Vanagon. Although it probably
doesn't matter much, which is the input and which is
the output?
Might as well get the flow the same as with the
vanagon so that the coolant flows in the same
direction through the heater cores.
Thanks,
...Markus
