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Little question that you have found the problem. With the coolant galleys
that plugged and coating the walls, its small wonder you had a cooling
problem. Several folks have now mentioned finding extensive rust on engines
that appear new or little used. Clearly if the engine is not drained with
the coolant drain plug (located with the large engine mounting bolts onthe
center housing) and rotated to get all the coolant drained - it can be
Lethal to the engine.
Sorry, that was the problem, but I think your cooling system is unlikely to
be a problem so at least you can proceed.
Ed
Ed Anderson
RV-6A N494BW Rotary Powered
Matthews, NC
----- Original Message ----- From: "David Leonard" <Daveleonard@cox.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Sunday, April 18, 2004 3:27 AM
Subject: [FlyRotary] Cooling Problem Identified
Well, I finally discovered the cause of my inability to circulate
coolant... Rust. Upon taking the engine apart to replace the coolant
o-rings I discovered the massive amounts of rust shown in the picture.
And this picture does not even do it justice. The rust was so thick it
was not allowing any coolant to flow. This is the front side housing,
but the others were just as bad.
> Anyway, thanks for everyone's input on my cooling system. I have never
heard of rust getting this bad but is something to think about for those
of us who have engines sitting around for a long period of time.
David Leonard
The Rotary Roster:
http://members.aol.com/_ht_a/rotaryroster/index.html
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