<VV> Speaking of damper doors...

[Vairtec Corp]

The Greenbrier that I own currently was purchased by my father almost 49 
years ago.  When it was new to us, in the 60s, the damper doors would 
remain fully open after shutdown, until the thermostats cooled, then 
they would, one at a time, snap shut with a bang.

In cool weather this would happen in a few minutes.  In hot weather it 
might be upwards of an hour.

They did this until the thermostats were replaced circa 1976.

I have never encountered another Corvair that did this -- and I've had 
more than 60 of 'em through the years.  Anyone else have a Corvair that 
did this?

--Bob