X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from cdptpa-omtalb.mail.rr.com ([75.180.132.120] verified) by logan.com (CommuniGate Pro SMTP 5.4.5) with ESMTP id 5584372 for flyrotary@lancaironline.net; Wed, 06 Jun 2012 19:22:42 -0400 Received-SPF: pass receiver=logan.com; client-ip=75.180.132.120; envelope-from=eanderson@carolina.rr.com Return-Path: X-Authority-Analysis: v=2.0 cv=KKDY/S5o c=1 sm=0 a=g3L/TDsr+eNLfIieSKfGkw==:17 a=AHkS0RJitIMA:10 a=aSB15ukG0xIA:10 a=05ChyHeVI94A:10 a=ayC55rCoAAAA:8 a=nUuTZ29dAAAA:8 a=oCcaPWc0AAAA:8 a=9YLxEZFu0ncay1Cx1fcA:9 a=wPNLvfGTeEIA:10 a=R_Yd0xebLpBF3xIl:21 a=oUN_LMVfvlHQznR6:21 a=C_IRinGWAAAA:8 a=Ia-xEzejAAAA:8 a=aCnJ-MnK_2oh1Pur8hgA:9 a=_W_S_7VecoQA:10 a=si9q_4b84H0A:10 a=EzXvWhQp4_cA:10 a=g3L/TDsr+eNLfIieSKfGkw==:117 X-Cloudmark-Score: 0 X-Originating-IP: 174.110.170.10 Received: from [174.110.170.10] ([174.110.170.10:64133] helo=EdPC) by cdptpa-oedge02.mail.rr.com (envelope-from ) (ecelerity 2.2.3.46 r()) with ESMTP id B3/30-05395-E16EFCF4; Wed, 06 Jun 2012 23:22:06 +0000 Message-ID: <2090FC053A164C95862391412F4DBC54@EdPC> From: "Ed Anderson" To: "Rotary motors in aircraft" References: In-Reply-To: Subject: Re: [FlyRotary] Not a good sign Date: Wed, 6 Jun 2012 19:22:07 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000D_01CD4419.A98F89C0" X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 14.0.8117.416 X-MimeOLE: Produced By Microsoft MimeOLE V14.0.8117.416 This is a multi-part message in MIME format. ------=_NextPart_000_000D_01CD4419.A98F89C0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Randy 1. Do you have a coolant pressure gauge? If you have a leak between = combustion chamber and coolant galley - running the engine should cause = a rise in pressure due to combustion gases pushing into coolant galley. = 2. Take off the radiator cap and see if you can find oil floating on = top (not a guaranteed test - but clean water top would be good). =20 3. Also check after a period of time and see whether you see coolant = leaking back into combustion chamber. Removing leading plug from both = rotors and rotate the engine with starter - if you spark plug hole = resembles "ole Faithful" then you likely have a leak. =20 I would want to make certain I had a leak before tearing down what = appears to be a roaring engine. I flew from North Carolina to Louisiana with my coolant pressure slowly = increasing the entire trip. When I got there I pulled the two plugs and = coolant shot feet into the air when I triggered the starter. Yes, I had = blown a coolant "O" ring. Good Luck Ed From: Randolph=20 Sent: Wednesday, June 06, 2012 6:53 PM To: Rotary motors in aircraft=20 Subject: [FlyRotary] Not a good sign AcroSport biplane 13B using EC3., EM3, dash C psru, 74X64 Sterba prop. = Hobbs shows 5 hours of ground running...WOT static shows 6500RPM 170 HP, = 17 GPM. Well dream on concerning that number. After about ten minutes = of variable throttle settings we read water and oil at 158 degrees, day = was cool for Houston, 70 degrees. To approximate take off power, and = time, ran 6000RPM for four minutes and observe water at 208 F oil about = the same, and climbing slowly. Hope she cools better in flight. At my = next trip to the hangar I pulled the dip stick and found traces of = condensed oil/water slime on the rod. The crank case oil was at the = proper level and was clear and appeared normal. Back in December 2007 = when I assembled this 13B I had a lot of problems because the oil and = water seals would not stay in their grooves...appeared to be too small, = had to slide the housings around to get closure and allow the assembly = bolts to pass through. So who knows what twisted condition they may now = lay in. Losing a little water this way is like begin a little pregnant, = isn't it? I checked the oil/vapor separator and it shows nothing from = the engine after these 5 hours of run time. At 72 years of age, I = really want to install the wings and fly this 15 year project for some = gratification before the delay of a complete engine re-do. What do you = think?=20 Randy __________ Information from ESET NOD32 Antivirus, version of virus = signature database 7201 (20120606) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com No virus found in this message. Checked by AVG - www.avg.com Version: 2012.0.2178 / Virus Database: 2433/5052 - Release Date: = 06/06/12 ------=_NextPart_000_000D_01CD4419.A98F89C0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Hi Randy
 
1.  Do you have a coolant pressure = gauge?  If=20 you have a leak between combustion chamber and coolant galley - running = the=20 engine should cause a rise in pressure due to combustion gases pushing = into=20 coolant galley. 
2.  Take off the radiator cap and see if = you can find=20 oil floating on top (not a guaranteed test - but clean water top would = be=20 good).   
3.  Also check after a period of time and = see whether=20 you see coolant leaking back into combustion chamber. =20 Removing leading plug from both rotors and rotate the engine with = starter -=20 if you spark plug hole resembles "ole Faithful" then you  likely = have a=20 leak. 
 
I would want to make certain I had a leak before = tearing=20 down what appears to be a roaring engine.
 
I flew from North Carolina to Louisiana with my = coolant=20 pressure slowly increasing the entire trip.  When I got there I = pulled the=20 two plugs and coolant shot feet into the air when I triggered the = starter. =20 Yes, I had blown a coolant "O" ring.
 
Good Luck
 
Ed

From: Randolph
Sent: Wednesday, June 06, 2012 6:53 PM
Subject: [FlyRotary] Not a good sign

AcroSport=20 biplane 13B using EC3., EM3,  dash C psru, 74X64 Sterba prop.  = Hobbs=20 shows 5 hours of ground running...WOT static shows 6500RPM 170 HP, 17 = GPM. =20 Well dream on concerning that number.  After about ten minutes of = variable=20 throttle settings we read water and oil at 158 degrees, day was cool for = Houston, 70 degrees.  To approximate take off power, and time, =  ran=20 6000RPM for four minutes and observe water at 208 F oil about the same, = and=20 climbing slowly.  Hope she cools better in = flight. At my  next trip to the hangar I pulled = the dip=20 stick and found traces of condensed oil/water slime on the rod.  = The crank=20 case oil was at the proper level and was clear and appeared = normal.  Back=20 in December 2007 when I assembled this 13B I had a lot of problems = because the=20 oil  and water seals would not stay in their grooves...appeared to = be too=20 small, had to slide the housings around to get closure and allow the = assembly=20 bolts to pass through.  So who knows what twisted condition they = may now=20 lay in.  Losing a little water this way is like begin a little = pregnant,=20 isn't it?  I checked the oil/vapor separator and it shows nothing = from the=20 engine after these 5 hours of run time.  At 72 years of age, I = really=20 want to install the wings and fly this 15 year project for some = gratification=20 before the delay of a complete engine re-do.   What do you=20 think? 
Randy
 


__________ Information from ESET NOD32 = Antivirus,=20 version of virus signature database 7201 (20120606) = __________

The=20 message was checked by ESET NOD32 Antivirus.

http://www.eset.com

No virus found in this=20 message.
Checked by AVG - www.avg.com
Version: 2012.0.2178 / = Virus=20 Database: 2433/5052 - Release Date: 06/06/12

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