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Michael,
I do not see any problems with that orientation of the GM evaporator cores. In fact, it may made it easier to flush trapped air out. Mine have the inlet/outlet on the bottom with no peacock on top to let out trapped air, I end up having to run the engine up to 5000 rpm a couple of times to flush all the trapped air out of the cores.
When I drain the system and put fresh coolant back in, I normally find the cores about 2/3 filled with coolant the top 1/3 filled with air. You can tell if you have trapped air by feeling the radiator - it will be cooler where air occupies the space.
One thing to keep in mind with your orientation is how your inlet ducts will match up. Generally a perpendicular orientation to the air flow makes it a bit easier to develop a good flowing duct.
FWIW
Ed
Ed Anderson
Rv-6A N494BW Rotary Powered
Matthews, NC
eanderson@carolina.rr.com
http://www.andersonee.com
http://members.cox.net/rogersda/rotary/configs.htm#N494BW
http://www.dmack.net/mazda/index.html
----- Original Message ----- From: "Michael Silvius" <silvius@gwi.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Thursday, May 01, 2008 7:29 PM
Subject: [FlyRotary] radiator orientation?
Anyonene see any issues of concern with instaling the radiators in the
vertical orientation as oposed to their normal orientation with the inlets
and outlet on the top. These are evaporator cores from a JMC Jimmy- Chevy
Blazer
Michael in Maine
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