X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from QMTA07.emeryville.ca.mail.comcast.net ([76.96.30.64] verified) by logan.com (CommuniGate Pro SMTP 5.2.12) with ESMTP id 3483332 for flyrotary@lancaironline.net; Sun, 08 Feb 2009 21:24:40 -0500 Received-SPF: pass receiver=logan.com; client-ip=76.96.30.64; envelope-from=wschertz@comcast.net Received: from OMTA03.emeryville.ca.mail.comcast.net ([76.96.30.27]) by QMTA07.emeryville.ca.mail.comcast.net with comcast id DSVQ1b0050b6N64A7eQ5yp; Mon, 09 Feb 2009 02:24:05 +0000 Received: from WschertzPC ([71.57.77.95]) by OMTA03.emeryville.ca.mail.comcast.net with comcast id DeQ21b00B23NHuF8PeQ3p9; Mon, 09 Feb 2009 02:24:04 +0000 Message-ID: <39273782AA8543EB9E8403ED27B6A480@WschertzPC> From: "Bill Schertz" To: "Rotary motors in aircraft" References: In-Reply-To: Subject: Re: [FlyRotary] Re: NEW failure mode for 13B Date: Sun, 8 Feb 2009 20:24:00 -0600 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000D_01C98A2B.2D6C7840" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Windows Mail 6.0.6001.18000 X-MimeOLE: Produced By Microsoft MimeOLE V6.0.6001.18049 This is a multi-part message in MIME format. ------=_NextPart_000_000D_01C98A2B.2D6C7840 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I am just glad it happened on the ground also. I am NOT trying to take = over your coveted spot as trouble identifier. Bill Schertz KIS Cruiser #4045 N343BS ----- Original Message -----=20 From: Ed Anderson=20 To: Rotary motors in aircraft=20 Sent: Sunday, February 08, 2009 6:56 PM Subject: [FlyRotary] Re: NEW failure mode for 13B Geez, Bill - too much excitement for my blood. But, glad it happened = on the ground during a run-up - one of the reasons, you can't spend too = much time on ground run ups. I probably had 30 hours before the first = flight (perhaps a bit excessive {:>)). =20 Sure wouldn't think 14 psi would blow out a freeze plug - but guess it = all depends on how secure it is. Naturally, you would want to think = whether any factors might have caused localized pressure build up. The = only freeze plugs I have installed were in the aluminum turbo housings = which had openings to exchange coolant with the intake manifold. =20 =20 If you were full tilt boogie when it let go, I would imagine the = exhaust was a mite hot and glycol, of course, will burn if its flash = point is exceeded. Having had a fiberglass wheel pant burn when I had = my brake fire, glad you got it put out before it really got going. =20 Don't start trying to exceed my achievements in the "what can go = wrong" arena {:>) =20 Ed =20 Ed Anderson Rv-6A N494BW Rotary Powered Matthews, NC eanderson@carolina.rr.com http://www.andersonee.com http://www.dmack.net/mazda/index.html http://www.flyrotary.com/ http://members.cox.net/rogersda/rotary/configs.htm#N494BW =20 -------------------------------------------------------------------------= ----- From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] = On Behalf Of Bill Schertz Sent: Sunday, February 08, 2009 6:30 PM To: Rotary motors in aircraft Subject: [FlyRotary] NEW failure mode for 13B =20 Well, I haven't heard of this happening before -- I was ground running = my engine to tune it with the EM-2 and EC-2. Ran for almost an hour, = at various rpm's to change the manifold pressure and tweak the settings. = Cooling working well, I had the top cowling off to allow good exit area = since I was tied down. Coolant pressure about 14 psi as reported on the = EM-2. =20 Engine was running good, took it up to ~6000 rpm swinging a 76x76 = Catto prop, when suddenly there was steam and fluid on my windshield. = Shut it down by killing power to the EC-2. Coolant everywhere. =20 Got out and looked to diagnose the problem -- NOT my plumbing. A = FREEZE PLUG in the iron housing had blown out. Rapid coolant dump. =20 Secondary effect -- Since I shut down suddenly from full tilt, either = the proximity of the cowl to the exhaust, or possibly some of the = coolant on the exhaust started a small fire on my cowl. Put it out with = extinguisher, but corner is charred. =20 =20 Bill Schertz KIS Cruiser #4045 N343BS Now in repair mode. =20 __________ Information from ESET NOD32 Antivirus, version of virus = signature database 3267 (20080714) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com ------=_NextPart_000_000D_01C98A2B.2D6C7840 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
I am just glad it happened on the = ground also. I am=20 NOT trying to take over your coveted spot as trouble = identifier.
 
Bill Schertz
KIS Cruiser #4045
N343BS
----- Original Message -----
From:=20 Ed=20 Anderson
Sent: Sunday, February 08, 2009 = 6:56=20 PM
Subject: [FlyRotary] Re: NEW = failure mode=20 for 13B

Geez, Bill = =96 too much=20 excitement for my blood.  But, glad it happened on the ground = during a=20 run-up =96 one of the reasons, you can=92t spend too much time on = ground run=20 ups.  I probably had 30 hours before the first flight (perhaps a = bit=20 excessive {:>)).

 

Sure = wouldn=92t think=20 14 psi would blow out a freeze plug =96 but guess it all depends on = how secure=20 it is.  Naturally, you would want to think whether any factors = might have=20 caused localized pressure build up.  The only freeze plugs I have = installed were in the aluminum turbo housings which had openings to = exchange=20 coolant with the intake manifold. 

 

If you were = full tilt=20 boogie when it let go, I would imagine the exhaust was a mite hot and = glycol,=20 of course, will burn if its flash point is exceeded.  Having had = a=20 fiberglass wheel pant burn when I had my brake fire, glad you got it = put out=20 before it really got going.

 

Don=92t = start trying to=20 exceed my achievements in the =93what can go wrong=94 arena=20 {:>)

 

Ed

 

Ed=20 Anderson

Rv-6A = N494BW Rotary=20 Powered

Matthews,=20 NC

eanderson@carolina.rr.com

http://www.andersonee.com

http://www.dmack.net/mazda/index.html

http://www.flyrotary.com/

http://members.cox.net/rogersda/rotary/configs.htm#N494BW

 

From:=20 Rotary motors in aircraft = [mailto:flyrotary@lancaironline.net] On=20 Behalf Of Bill Schertz
Sent: Sunday, February 08, 2009 = 6:30=20 PM
To: = Rotary motors in aircraft
Subject: [FlyRotary] NEW = failure mode for=20 13B

 

Well, I haven't heard of = this=20 happening before -- I was ground running my engine to  tune it = with the=20 EM-2 and EC-2.  Ran for almost an hour, at various rpm's to = change the=20 manifold pressure and tweak the settings. Cooling working well, I had = the top=20 cowling off to allow good exit area since I was tied down. Coolant = pressure=20 about 14 psi as reported on the = EM-2.

 

Engine was running good, = took it=20 up to ~6000 rpm swinging a 76x76 Catto prop, when suddenly there was = steam and=20 fluid on my windshield. Shut it down by killing power to the EC-2. = Coolant=20 everywhere.

 

Got out and looked to = diagnose the=20 problem -- NOT my plumbing.  A FREEZE PLUG in the iron housing = had blown=20 out. Rapid coolant dump.

 

Secondary effect -- = Since I shut=20 down suddenly from full tilt, either the proximity of the cowl to the = exhaust,=20 or possibly some of the coolant on the exhaust started a small fire on = my=20 cowl. Put it out with extinguisher, but corner is=20 charred.

 

 

Bill Schertz
KIS = Cruiser=20 #4045
N343BS

Now in repair=20 mode.

 



__________ Information from ESET = NOD32=20 Antivirus, version of virus signature database 3267 (20080714)=20 __________

The message was checked by ESET NOD32 = Antivirus.

http://www.eset.com

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