OK.  I am getting tired of the cool air blowing out of my only heater in
the old '82 diesel.  I checked the line in (the one with the valve on
it) and it seems much warmer than the one coming out.  I used the
scientific method of just wrapping my hand around each of the rubber
hoses.  Now I figured that the coolant coming out will be a little
cooler but I also figured that I would not be able to tell the
difference using my highly scientific method.
My question is this.  How do you bleed the cooling system?  Access to
the hoses at the upper end seems difficult but not impossible.  Does it
matter if the engine is up to temp? (i.e.. is there a thermostat to
worry about?).
I only have the front heater and it is just not cutting it in these
chilly times.
Thanks,
Mike Pidcoe