The blower motor on my 86 vanagon front heater has died.  I have removed
all the gubbins from up front to remove the heater assembly.  What is
the best way to drain enough coolant to be able to remove the hoses from
the heater core?  I can't find a connection to disconnect.  There is a
gas heater installed as well so things are a little crowded
underneath 8^}

Earl