Return-Path: <13brv3@bellsouth.net> Received: from imf17aec.mail.bellsouth.net ([205.152.59.65] verified) by logan.com (CommuniGate Pro SMTP 4.2.8) with ESMTP id 620896 for flyrotary@lancaironline.net; Tue, 25 Jan 2005 08:39:28 -0500 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.65; envelope-from=13brv3@bellsouth.net Received: from rd ([65.6.194.9]) by imf17aec.mail.bellsouth.net (InterMail vM.5.01.06.11 201-253-122-130-111-20040605) with ESMTP id <20050125133857.QXXK1992.imf17aec.mail.bellsouth.net@rd> for ; Tue, 25 Jan 2005 08:38:57 -0500 From: "Russell Duffy" <13brv3@bellsouth.net> To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: Performance coatings- bearing damage? Date: Tue, 25 Jan 2005 07:39:27 -0600 Message-ID: <02d101c502e3$4a5df330$6101a8c0@rd> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_02D2_01C502B0.FFC38330" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2527 Importance: Normal In-Reply-To: This is a multi-part message in MIME format. ------=_NextPart_000_02D2_01C502B0.FFC38330 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable When I first started flying my coot the rotors were not coated and I = was fighting cooling problems and I was seeing oil temps up to 260 degrees = on full power climb and cruising at 220 degrees, I then pulled the engine = down and coated the rotors without pulling the bearings and had no problems = with them. After coating the rotors the temp toped out at 220 on climb and dropped = to 180 in cruise, at that point that was the only change I made and ran it = for several hundred hrs so that should be a good comparison of apples to = apples, since then I have made changes that has dropped the temp to 160 on climb = and 140 in cruise. Ken Welter This is just the sort of testimonial that I was looking for Ken. Thanks very much. I think I'll go ahead with plan A, and have them coated. If = the bearings look damaged when they return, I'll come up with some way to = change them. I should have them in the next few days, and should be able to = get them to Performance Coatings in time for their next Wednesday run. =20 =20 Thanks, Rusty (now if someone could just tell my installers how my new Trane = heat pump is supposed to be wired) ------=_NextPart_000_02D2_01C502B0.FFC38330 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable Message
   When I first = started flying=20 my coot the rotors were not coated and I was fighting cooling problems = and I was=20 seeing oil temps up to 260 degrees on full power climb and cruising at = 220=20 degrees, I then pulled the engine down and coated the rotors without = pulling the=20 bearings and had no problems with them.
 After coating the rotors the temp toped = out at=20 220 on climb and dropped to 180 in cruise, at that point that was the = only=20 change I made and ran it for several hundred hrs so that should be a = good=20 comparison of apples to apples, since then I have made changes that has = dropped=20 the temp to 160 on climb and 140 in cruise.
 Ken Welter

This is just=20 the sort of testimonial that I was looking for Ken.  Thanks very=20 much.  I think I'll go ahead with plan A, and have them = coated.  If=20 the bearings look damaged when they return, I'll come up with some way = to change=20 them.  I should have them in the next few days, and should be able = to get=20 them to Performance Coatings in time for their next Wednesday run.  =
 
Thanks,
Rusty (now if=20 someone could just tell my installers how my new Trane heat pump is = supposed to be wired)
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