X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [207.46.163.182] (HELO na01-bn1-obe.outbound.protection.outlook.com) by logan.com (CommuniGate Pro SMTP 6.0.9e) with ESMTPS id 6784995 for lml@lancaironline.net; Tue, 18 Mar 2014 09:11:40 -0400 Received-SPF: pass receiver=logan.com; client-ip=207.46.163.182; envelope-from=rpastusek@htii.com Received: from BY2PR07MB550.namprd07.prod.outlook.com (10.141.217.145) by BY2PR07MB549.namprd07.prod.outlook.com (10.141.217.140) with Microsoft SMTP Server (TLS) id 15.0.898.11; Tue, 18 Mar 2014 13:11:00 +0000 Received: from BY2PR07MB550.namprd07.prod.outlook.com ([10.141.217.145]) by BY2PR07MB550.namprd07.prod.outlook.com ([10.141.217.145]) with mapi id 15.00.0898.005; Tue, 18 Mar 2014 13:11:00 +0000 From: Robert R Pastusek To: Lancair Mailing List CC: "Neal George (ngeorge@continentalmotors.aero)" Subject: RE: [LML] HOW OLD IS THAT ENGINE Thread-Topic: [LML] HOW OLD IS THAT ENGINE Thread-Index: AQHPQqBG2+KNTBnYnkqFzD3hoKccBprmyx9A Date: Tue, 18 Mar 2014 13:10:58 +0000 Message-ID: <8b2c57220da44ab2b6fb017f3e007e34@BY2PR07MB550.namprd07.prod.outlook.com> References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [108.28.164.93] x-forefront-prvs: 0154C61618 x-forefront-antispam-report: SFV:NSPM;SFS:(10019001)(428001)(51414003)(13624006)(189002)(199002)(74366001)(83072002)(79102001)(19300405004)(15202345003)(53806001)(69226001)(54316002)(74316001)(85852003)(95666003)(95416001)(80022001)(81542001)(65816001)(80976001)(19580395003)(83322001)(66066001)(59766001)(56776001)(33646001)(77982001)(51856001)(20776003)(63696002)(81342001)(85306002)(54356001)(94316002)(86362001)(87936001)(74876001)(19580405001)(81816001)(94946001)(97336001)(46102001)(76786001)(76576001)(47976001)(76796001)(90146001)(56816005)(49866001)(47446002)(50986001)(87266001)(2656002)(74502001)(92566001)(31966008)(47736001)(97186001)(15975445006)(93136001)(16236675002)(81686001)(4396001)(76482001)(74662001)(93516002)(24736002)(217873001);DIR:OUT;SFP:1102;SCL:1;SRVR:BY2PR07MB549;H:BY2PR07MB550.namprd07.prod.outlook.com;FPR:2CFFF20F.A7361C8A.7BE79BBA.4BE1D9B1.203A9;MLV:sfv;PTR:InfoNoRecords;MX:1;A:1;LANG:en; received-spf: None (: htii.com does not designate permitted sender hosts) Content-Type: multipart/alternative; boundary="_000_8b2c57220da44ab2b6fb017f3e007e34BY2PR07MB550namprd07pro_" MIME-Version: 1.0 X-OriginatorOrg: htii.com --_000_8b2c57220da44ab2b6fb017f3e007e34BY2PR07MB550namprd07pro_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Peter, A number of Lancair owners/builders are heading to Fairhope, AL on Thursday= for a maintenance clinic sponsored by Continental Motors. This is just one= of the subjects to be covered by the pros at Continental during this LOBO-= sponsored 2-day event. Sorry you could not join us there. FOR ALL: Signup for this event is now closed. Judy and I look forward to se= eing the 40+ who signed up in Fairhope on Thursday afternoon! Please review= the agenda I sent you for details on event times and places. Bob Pastusek, for LOBO -------------------------------------------------- HI THERE There are TWO numbers suggested for TBO. one we are all familiar with, which is the number of hours of operation and the other we tend to ignore, which is the number of years in service. i believe that it is twelve years or some similar number of years. i personally have ignored this "timing out of the engine" somewhat to my own peril. over the course of my ownership of Large Continental Engines, i have had three engine that needed overhaul due to ravages of time, = as opposed to wearing out. we all know about the "soft" cylinders" on Continental Engines; That i have lived with and the regular replacement of of a= cylinder of two but, the problem that causes engines to be overhauled is Lifters and Camshafts= . and, Lifters tend to have spalling, (the erosion of the rubbing surface= of the cam follower-lifter) which leads to excessive Camshaft wear. and ironically, this wear is less likely in an engine that has been used a = lot and regularly. or to wit. a high time engine. i am intimately familar with this problem because, recently, a cylinder rem= oval led to examining lifters which led to having to overhaul an engine tha= t had 850 hours TT. the engine had been installed in the late 90's yes, it was out of Calender time...which i ignored when i bought the airp= lane. how to prevent this problem, fly a lot; and starting the engine and running= it once a month is not a good solution and may exacerbate the problem. it= is the buildups of moisture and acids in the engine over time that leads t= o these failures Conversely, CapeAir, has over 150 Continental TSIO520's that have FAA approval for a TB= O of 2,500-2,700 hours, because of the high utility of the aircraft. (yes, that FAA) and, the aircraft that were used for fish spotting in the northeast were go= ing 5,000 to 6,000 hours between overhauls; those planes were often flown 1= 0 hours a day, day in and day out. so Calendar time matters, for me three time peter --_000_8b2c57220da44ab2b6fb017f3e007e34BY2PR07MB550namprd07pro_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Peter,

 

A number of Lancair owners/builders are heading to = Fairhope, AL on Thursday for a maintenance clinic sponsored by Continental Motors. This is just one of the subjects to be covered by the pros at Cont= inental during this LOBO-sponsored 2-day event.   Sorry you could not joi= n us there.

 

FOR ALL: Signup for this event is now closed. Judy = and I look forward to seeing the 40+ who signed up in Fairhope on Thursday afternoon! Please review the agenda I sent you for details on eve= nt times and places.

 

Bob Pastusek,

for LOBO

----------------------= ----------------------------

HI T= HERE

There are TWO numbers suggested for TBO.

one  we are all familiar with, which is the number of hours of = operation

and

the other we tend to ignore, which is the number of years in service= .
     i believe that it is twelve years or some similar numbe= r of years.

i personally have ignored this "timing out of the engine"
      somewhat to my own peril.

over the course of my ownership of Large Continental  Engines,
      i have had three engine that needed overhaul= due to ravages of time, as opposed to wearing out.

we all know about the "soft" cylinders" on Continental Engin= es;
            &nb= sp;    That i have lived with and the regular replacement of= of a cylinder  of two
but,
  the problem that causes engines to be overhauled is Lifters and Cams= hafts.

and,
         Lifters tend to have spall= ing, (the erosion of the rubbing surface of the cam follower-lifter) which = leads to excessive Camshaft wear.
and ironically, this wear is less likely in an engine that has been used a = lot and regularly. or to wit. a high time engine.

i am intimately familar with this problem because, recently, a cylinder rem= oval led to examining lifters which led to having to overhaul an engine tha= t had 850  hours TT. the engine had been installed in the late 90's
yes,
       it was out of Calender time...which i = ignored when i bought the airplane.

how to prevent this problem, fly a lot; and starting the engine and running= it once a month is not a good solution and may exacerbate the problem.&nbs= p; it is the buildups of moisture and acids in the engine over time that le= ads to these failures

Conversely,

CapeAir, has over 150 Continental TSIO520's that have FAA approval for a TB= O of 2,500-2,700 hours, because of the high utility of the aircraft.
  (yes, that FAA)

and, the aircraft that were used for fish spotting in the northeast were go= ing 5,000 to 6,000 hours between overhauls; those planes were often flown 1= 0 hours a day, day in and day out.

so Calendar time matters, for me three time

peter




            &nb= sp;   
 

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