X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Mon, 21 Jul 2014 07:25:57 -0400 Message-ID: X-Original-Return-Path: <2luv2fly@cox.net> Received: from eastrmfepo201.cox.net ([68.230.241.216] verified) by logan.com (CommuniGate Pro SMTP 6.0.9e) with ESMTP id 6990523 for lml@lancaironline.net; Sun, 20 Jul 2014 22:29:41 -0400 Received-SPF: pass receiver=logan.com; client-ip=68.230.241.216; envelope-from=2luv2fly@cox.net Received: from eastrmimpo305 ([68.230.241.237]) by eastrmfepo201.cox.net (InterMail vM.8.01.05.15 201-2260-151-145-20131218) with ESMTP id <20140721022908.LJSL31475.eastrmfepo201.cox.net@eastrmimpo305> for ; Sun, 20 Jul 2014 22:29:08 -0400 Received: from 308h101 ([70.161.131.120]) by eastrmimpo305 with cox id UqV81o0072c0cn201qV8b4; Sun, 20 Jul 2014 22:29:08 -0400 X-CT-Class: Clean X-CT-Score: 0.00 X-CT-RefID: str=0001.0A020202.53CC7AF4.0064,ss=1,re=0.000,fgs=0 X-CT-Spam: 0 X-Authority-Analysis: v=2.0 cv=T99SuY2Q c=1 sm=1 a=6tIHPWKG9n4pFEXO3J9E4A==:17 a=G8Uczd0VNMoA:10 a=kviXuzpPAAAA:8 a=Ia-xEzejAAAA:8 a=JDtNdmcVAAAA:8 a=58Ep-bLZAAAA:8 a=SW_zh3k-m4ggLCmfpNYA:9 a=QEXdDO2ut3YA:10 a=EzXvWhQp4_cA:10 a=YmKLqM2cQoYA:10 a=yMhMjlubAAAA:8 a=SSmOFEACAAAA:8 a=gKO2Hq4RSVkA:10 a=UiCQ7L4-1S4A:10 a=hTZeC7Yk6K0A:10 a=frz4AuCg-hUA:10 a=6tIHPWKG9n4pFEXO3J9E4A==:117 X-CM-Score: 0.00 Authentication-Results: cox.net; none From: "Janie & Ed Smith" <2luv2fly@cox.net> X-Original-To: "'Lancair Mailing List'" Subject: [LML] Cold Cylinder X-Original-Date: Sun, 20 Jul 2014 22:29:06 -0400 X-Original-Message-ID: <000901cfa48b$8bd4eb30$a37ec190$@cox.net> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000A_01CFA46A.04C34B30" X-Mailer: Microsoft Outlook 14.0 Thread-Index: Ac+ki4uLo73LZ9PTSJ2krihIEt7wlQ== Content-Language: en-us This is a multipart message in MIME format. ------=_NextPart_000_000A_01CFA46A.04C34B30 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Justin, =20 I would suspect a broken valve spring. Check with Bob Pastusek. =20 Tailwinds, =20 Ed Smith Chesapeake,VA =20 From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of = jwilless@itd-nc.com Sent: Sunday, July 20, 2014 5:03 PM To: Lancair Mailing List Subject: [LML] Cold Cylinder =20 I have a Lancair ESP with a TSIO-550. Engine is very rough and low on = power with #3 cylinder cold (100 degrees or more) on cht and egt while = ROP. In cruise everything returns to normal if I go LOP.=20 =20 The injector o-rings looked okay when I inspected them. I sprayed the = nozzle out pretty good with brake cleaner and shot a good amount of fuel = out the spider and line. The injector is clean. =20 Cylinder #3 acts normal at idle and run up. At full takeoff power the = engine stumbles as #3 goes cold.=20 =20 I've already done a visual inspection of all the clamps and couplings = and conducted a soapy water soapy water test of the intake system. =20 There is a definite correlation between RPM and #3 going cold. Under = about 2450 rpm ROP, #3 was smooth but a good 70 degrees colder than = usual. When switching to LOP, #3 CHT comes right up in line with the = other cylinders as normal and I can increase the rpm. When #3 get's = rough, egt drops lock a rock.=20 =20 I tried using the high pressure fuel boost and modulating the flow with = the mixture for a full rich condition but #3 stayed pretty cold.=20 =20 Mags checked out in all phases ROP and LOP.=20 =20 The #3 valves looked good with the scope and the compression was 72/80. = The top plug looked a bit oily when I pulled it.=20 =20 Data can be viewed here.=20 =20 https://www.savvyanalysis.com/my-flights/3672/62353853-578e-410b-970e-c4d= a485c2e0b =20 --=20 Thanks, Justin=20 ------=_NextPart_000_000A_01CFA46A.04C34B30 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable

Justin,

 

I would suspect a broken valve spring.=C2=A0 Check with Bob = Pastusek.

 

Tailwinds,

 

Ed Smith

Chesapeake,VA

 

From:= = Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of = jwilless@itd-nc.com
Sent: Sunday, July 20, 2014 5:03 = PM
To: Lancair Mailing List
Subject: [LML] Cold = Cylinder

 

I have a = Lancair ESP with a TSIO-550. Engine is very rough and low on power with = #3 cylinder cold (100 degrees or more) on cht and egt while ROP. In = cruise everything returns to normal if I go = LOP. 

 

The injector = o-rings looked okay when I inspected them. I sprayed the nozzle out = pretty good with brake cleaner and shot a good amount of fuel out the = spider and line. The injector is = clean.

 

Cylinder #3 = acts normal at idle and run up. At full takeoff power the engine = stumbles as #3 goes cold. 

 

I've already = done a visual inspection of all the clamps and couplings and conducted a = soapy water soapy water test of the intake = system.

 

There is a = definite correlation between RPM and #3 going cold. Under about 2450 rpm = ROP, #3 was smooth but a good 70 degrees colder than usual. When = switching to LOP, #3 CHT comes right up in line with the other cylinders = as normal and I can increase the rpm. When #3 get's rough, egt drops = lock a rock. 

 

I tried using = the high pressure fuel boost and modulating the flow with the mixture = for a full rich condition but #3 stayed pretty = cold. 

 

Mags checked = out in all phases ROP and LOP. 

 

The #3 valves = looked good with the scope and the compression was 72/80. The top plug = looked a bit oily when I pulled = it. 

 

Data = can be viewed here. 

 

 

-- =

Thanks, = Justin 

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