You can plug it, but to avoid trapping air in those lines I soldered a U out
of 1/2" copper plumbing pipe and capped the ends.  Then I drilled a 1/16th
inch hole in the caps for some flow.  That's the way the valve works, it
doesn't completely shut off.  I don't have the $100 right now to replace the
core either.

Stuart

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
JRodgers
Sent: Friday, March 21, 2014 3:30 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Rear Heater Block-off: Does it hurt or do any damage?

Now that I have isolated the source of the coolant inside of the van - I
have blocked the two hoses. Can I run it for while that way, until I can get
everything repaired.

Thanks,

JOhn