X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [24.25.9.103] (HELO ms-smtp-04-eri0.southeast.rr.com) by logan.com (CommuniGate Pro SMTP 5.0.8) with ESMTP id 988756 for flyrotary@lancaironline.net; Fri, 17 Feb 2006 08:41:41 -0500 Received-SPF: pass receiver=logan.com; client-ip=24.25.9.103; envelope-from=eanderson@carolina.rr.com Received: from edward2 (cpe-024-074-025-165.carolina.res.rr.com [24.74.25.165]) by ms-smtp-04-eri0.southeast.rr.com (8.13.4/8.13.4) with SMTP id k1HDes5B003545 for ; Fri, 17 Feb 2006 08:40:57 -0500 (EST) Message-ID: <006301c633c7$8363c4a0$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Bluing: [FlyRotary] Engine Apart Date: Fri, 17 Feb 2006 08:39:01 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0060_01C6339D.9A0356F0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 X-Virus-Scanned: Symantec AntiVirus Scan Engine This is a multi-part message in MIME format. ------=_NextPart_000_0060_01C6339D.9A0356F0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Ouch! Dave, Sounds like a nuclear reactor meltdown. I can only tell you that I also had some bluing of the side housings = where my misplaced piece of apex seal rubbed. It turned blue as yours = but over a much smaller area. I laid a flat edge and could detect no = warping and have flown with them for about 40 hours now with no = detectable problem. Ed ----- Original Message -----=20 From: David Leonard=20 To: Rotary motors in aircraft=20 Sent: Saturday, February 11, 2006 12:12 PM Subject: [FlyRotary] Engine Apart I finally took the engine apart yesterday. As expected, there was not coolant left in the engine - it all boiled = out! The rotor housings were very toast, having melted around the = leading plug hole. They also shrank about .015 in that area and left an = aluminum coating on the inner surface. Even one of the tension bolts = had to be pounded out because the passage melted shut! The tefflon = o-rings were intact except for a 5-inch section through the hottest area = of combustion.=20 All apex and side seals were still in their place. The apex seals = were a little damaged from going over the melted aluminium. The bearings are a little rough and will have to be replaced, but the = e-shaft is undamaged. The rotors are usable. The end housings all got = severly blued in the hottest area. Does anyone know the significance of = that? Can they be used?=20 There were no broken tension bolts or leaks in the cooling system big = enough to find. So basically enough of it squirted out the top to = expose the water pump, then melt-down occured. Live and learn I guess. Will take some pictures... --=20 Dave Leonard Turbo Rotary RV-6 N4VY http://members.aol.com/_ht_a/rotaryroster/index.html http://members.aol.com/_ht_a/vp4skydoc/index.html ------=_NextPart_000_0060_01C6339D.9A0356F0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Ouch!  Dave, Sounds like a nuclear reactor=20 meltdown.
 
I can only tell you that I also had some bluing = of the=20 side housings where my misplaced piece of apex seal rubbed.  It = turned blue=20 as yours but over a much smaller area.  I laid a flat edge and = could detect=20 no warping and have flown with them for about 40 hours now with no = detectable=20 problem.
 
Ed
----- Original Message -----
From:=20 David=20 Leonard
Sent: Saturday, February 11, = 2006 12:12=20 PM
Subject: [FlyRotary] Engine = Apart

I finally took the engine apart yesterday.
 
As expected, there was not coolant left in the engine - it all = boiled=20 out!  The rotor housings were very toast, having melted around = the=20 leading plug hole.  They also shrank about .015 in that area and = left an=20 aluminum coating on the inner surface.  Even one of the tension = bolts had=20 to be pounded out because the passage melted shut!  The tefflon = o-rings=20 were intact except for a 5-inch section through the hottest area of=20 combustion.
 
All apex and side seals were still in their place.  The apex = seals=20 were a little damaged from going over the melted aluminium.
 
The bearings are a little rough and will have to be replaced, but = the=20 e-shaft is undamaged.  The rotors are usable.  The end = housings all=20 got severly blued in the hottest area.  Does anyone know the = significance=20 of that?  Can they be used?
 
There were no broken tension bolts or leaks in the cooling system = big=20 enough to find.  So basically enough of it squirted out the top = to expose=20 the water pump, then melt-down occured.
 
Live and learn I guess.
 
Will take some pictures...
--
Dave Leonard
Turbo Rotary = RV-6=20 N4VY
http://memb= ers.aol.com/_ht_a/rotaryroster/index.html
http://members= .aol.com/_ht_a/vp4skydoc/index.html=20
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