[FC] bottom shrouds and damper doors

[Dennis Pleau]

I still think Dave Huntoon in NM has the best solution.  He punches 3 about
2" holes on the bottom of lower shrouds on the flat part under each
cylinder. 

In the summer the holes are open. In the winter, he puts what I call 'goof
plugs', usually chrome and have a bunch of fingers on the back and snap in
to the holes thereby sealing the holes off.  Summer to winter and winter to
summer change over time ~5 minutes  You can get a little heat even with the
plugs out.

dp

-----Original Message-----
From: corvanatics-bounces at corvair.org
[mailto:corvanatics-bounces at corvair.org] On Behalf Of Ken Hand
Sent: Sunday, January 01, 2012 3:06 PM
To: corvanatics at corvair.org
Subject: Re: [FC] bottom shrouds and damper doors

Even here in MI I run without the lower shrouds on, no debate needed. Even
in the cooler temps you will still get heat in the cabin just not as
intense. I know, 60 degrees is freezing to you out there! LOL   The only
thing that happens with the lower shrouds off is the engine takes longer to
warm up, therefore more unburned fuel in the crank case and etc. 

I'm not sure how long the Desert Proving Grounds (Tucson, now Yuma) have
been around but I am pretty sure all cars have been tested at the extremes
of temperature, hot and cold. I know I have been to CO. and up in the
mountains testing in altitude, 5000' and above. I know they go to
Kapuskasing, Canada in Jan and Feb. It isn't warm up there then. Also
through Death Valley. I am sure that the Corvairs were tested as delivered
with the shrouds on and t-stats in place.

 

 

Ken Hand
248-613-8586
www.corvairmechanic.com

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