Welcome to Vanagon water cooled system.
This job is real simple.  After you have taken the box off the top, close
the valve, pointing backward.
I use two vice grip kind of pliers to pinch the two hoses.
Take out the two screws , one each side, that hold the whole thing to the
floor.
Undo the clamps and take the whole thing out.  But not before you have a
towel under the hoses to soak up the dripping.  Closing the valve helps to
NOT empty the core on the floor.
Little screws hold the core in the body, then pull out.
It is also a good time to put a few drips of light oil on the bushing of the
blower.
Put it back the same way.
Open the valve, the bottom pointing forward.
No need to bleed the system.  It will fill back the coolant from the
reservoire.
Zoltan
----- Original Message -----
From: "Jamie McMahon" <jamie_m@COMCAST.NET>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Wednesday, February 21, 2007 3:04 PM
Subject: Help.. replaceing rear heater core 87 Vanagon GL

>I am going to be changeing the leaking rear heater core in my 87 Vanagon
>GL. What I need is some tips on doing it correctly. I have checked the
>archive and did not find much info. Do I need to bleed the entire cooling
>system after I do it? or can I just bleed it at the core? If someone could
>point me in the right direction it would help me greatly. The concept of
>coolant in my bus is a new thing for me. I am new to the list and this is
>my first Vanagon.
>
> Thanks, Jamie
> 87 Vanagon GL (Boo Boo)
> 73 Westy (Pumpkin)
>
>
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