X-Virus-Scanned: clean according to Sophos on Logan.com X-PolluStop: No license found, only first 5 messages were scanned Return-Path: Received: from ms-smtp-04.southeast.rr.com ([24.25.9.103] verified) by logan.com (CommuniGate Pro SMTP 5.1c.1) with ESMTP id 1211816 for flyrotary@lancaironline.net; Thu, 29 Jun 2006 07:27:57 -0400 Received-SPF: pass receiver=logan.com; client-ip=24.25.9.103; envelope-from=eanderson@carolina.rr.com Received: from edward2 (cpe-024-074-111-186.carolina.res.rr.com [24.74.111.186]) by ms-smtp-04.southeast.rr.com (8.13.6/8.13.6) with SMTP id k5TBR9xT018797 for ; Thu, 29 Jun 2006 07:27:11 -0400 (EDT) Message-ID: <000701c69b6e$f8798860$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: damage report Date: Thu, 29 Jun 2006 07:27:13 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0004_01C69B4D.71192C20" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2869 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.2869 X-Virus-Scanned: Symantec AntiVirus Scan Engine This is a multi-part message in MIME format. ------=_NextPart_000_0004_01C69B4D.71192C20 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable ----- Original Message -----=20 From: Bill Eslick=20 To: Rotary motors in aircraft=20 Sent: Wednesday, June 28, 2006 11:34 PM Subject: [FlyRotary] Re: damage report Thanks for all the input. I have been pulling the prop through 6 compression cycles, but = apparently my "muscle memory" is not yet discerning enough! I normally = get squeamish if oil and coolant get to 200F, and don't think they have = ever been much over 210F. Oil pressure runs in the 50 - 90 psi range = (as I recall).=20 The oil control ring is in fact damaged. That piece was broken out. Thanks for the chip offer, Tracy. I will check the date on my last = upgrade and let you know. Lynn, it is likely that this seal was running broken for the last = several hours, as the idle has been rough that long. It was just getting = worse. I will double check the CAS setting, but it always checks right = where Tracy's manual says it should be.=20 Ed, I am going back in with RWS apex seals. Sticking with 2mm since = the groves are good. Putting in the old seal by its end, the most play = I can find is 1/32" at the other end of the seal. Am I correct to = assume that is good?=20 Bill Eslick PS Jason also had a damaged oil seal. My chip was on the outside of = the large ring, and his was on the inside of the small ring. Go figure. Yes, 1/32" should be fine. I believe Lynn indicated that up to 3/16" = swing was acceptable First time I have heard of damage to the oil rings (damage to their = "O" rings due to over heat different story). I would hazard a guess = that perhaps a piece of apex seal or side seal metal might have gotten = down to the oil rings and caused the damage. My oil does not go past 200F but my coolant has gone to 220F on take = off on Hot day - but, only for short duration. Good luck on a quick rebuild Ed ------=_NextPart_000_0004_01C69B4D.71192C20 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
 
----- Original Message -----
From:=20 Bill = Eslick=20
Sent: Wednesday, June 28, 2006 = 11:34=20 PM
Subject: [FlyRotary] Re: damage = report

Thanks for all the input.
 
I have been pulling the prop through 6 compression cycles, but = apparently=20 my "muscle memory" is not yet discerning enough!  I normally get=20 squeamish if oil and coolant get to 200F, and don't think they have = ever been=20 much over 210F.  Oil pressure runs in the 50 - 90 psi range (as I = recall).
 
The oil control ring is in fact damaged.  That piece was = broken=20 out.
 
Thanks for the chip offer, Tracy.  I will check the date on = my last=20 upgrade and let you know.
 
Lynn, it is likely that this seal was running broken for the last = several=20 hours, as the idle has been rough that long. It was just getting = worse. =20 I will double check the CAS setting, but it always checks right where = Tracy's=20 manual says it should be.
 
Ed,  I am going back in with RWS apex seals.  Sticking = with 2mm=20 since the groves are good.  Putting in the old seal by its end, = the most=20 play I can find is 1/32" at the other end of the seal.  Am I = correct to=20 assume that is good?
 
 
Bill Eslick
 
PS  Jason also had a damaged oil seal.  My chip was on = the=20 outside of the large ring, and his was on the inside of the small = ring. =20 Go figure.

 Yes, 1/32" should be fine.  I = believe=20 Lynn indicated that up to 3/16" swing was acceptable
First time I have heard of damage to the oil = rings=20 (damage to their "O" rings due to over heat different story).  I = would=20 hazard a guess that perhaps a piece of apex seal or side seal metal = might have=20 gotten down to the oil rings and caused the damage.
 
My oil does not go past 200F but my coolant = has gone to=20 220F on take off on Hot day - but, only for short = duration.
 
Good luck on a quick rebuild
 
Ed
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