Return-Path: Received: from [199.185.220.220] (HELO priv-edtnes57.telusplanet.net) by logan.com (CommuniGate Pro SMTP 4.2.8) with ESMTP id 619016 for flyrotary@lancaironline.net; Mon, 24 Jan 2005 02:49:28 -0500 Received-SPF: pass receiver=logan.com; client-ip=199.185.220.220; envelope-from=haywire@telus.net Received: from Endurance ([207.81.25.155]) by priv-edtnes57.telusplanet.net (InterMail vM.6.01.04.00 201-2131-118-20041027) with SMTP id <20050124074856.WCHL10433.priv-edtnes57.telusplanet.net@Endurance> for ; Mon, 24 Jan 2005 00:48:56 -0700 From: "Todd Bartrim" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: Bent tension bolts, ceramic coating Date: Sun, 23 Jan 2005 23:48:44 -0800 Message-ID: <01a501c501e9$2219c890$0201a8c0@Endurance> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_01A6_01C501A6.13F68890" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook CWS, Build 9.0.2416 (9.0.2910.0) X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 In-Reply-To: Importance: Normal This is a multi-part message in MIME format. ------=_NextPart_000_01A6_01C501A6.13F68890 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit MessageHi Rusty; That was me who said this based on my own experience. The shop phoned me when they received my rotors and warned me that the bearings wouldn't survive the process and when I received them back, the bearing surface was porous and showed signs of bubbling in places. Fortunately I'd already ordered and received a new set of bearings. However I should mention that the shop that did the work, while experienced with coating pistons, had never done rotors before and after my detonation incident the coating had all flaked off. So this could be an indication of their incompetence. My recommendation to you is to have them coated. You will have a few weeks of downtime while the hangar repairs are ongoing and the cost of new bearings is minimal. Call performance coatings about this... maybe they can do it without overheating the bearings. 10 degrees is still 10 degrees that you'd like to have in reserve when you're running hard with Tracy hot on your tail:-) Todd (betting that Tracy has ceramic coating) I'm still debating the ceramic coating (thanks Steve). I may call Performance coatings tomorrow, and see how fast they say they can turn them around. I'll also ask about the temp of the process, because Bruce said his shop doesn't damage the bearings. I can't recall now who said this would happen. I could possibly send them the rotors, and get them back in time to stay on my original schedule, so it's at least worth looking into. ------=_NextPart_000_01A6_01C501A6.13F68890 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable Message
Hi=20 Rusty;
    That was me who said this based on my own = experience. The=20 shop phoned me when they received my rotors and warned me that the = bearings=20 wouldn't survive the process and when I received them back, the bearing = surface=20 was porous and showed signs of bubbling in places. Fortunately I'd = already=20 ordered and received a new set of bearings.
    However I should mention that the shop that did = the work,=20 while experienced with coating pistons, had never done rotors before and = after=20 my detonation incident the coating had all flaked off. So this could be = an=20 indication of their incompetence.
    My recommendation to you is to have them = coated. You will=20 have a few weeks of downtime while the hangar repairs are ongoing and = the cost=20 of new bearings is minimal. Call performance coatings about this... = maybe they=20 can do it without overheating the bearings.
    10 degrees is still 10 degrees that you'd like = to have in=20 reserve when you're running hard with Tracy hot on your=20 tail:-)
 
Todd=20 (betting that Tracy has ceramic coating)
I'm still = debating the=20 ceramic coating (thanks Steve).  I may call Performance=20 coatings tomorrow, and see how fast they say they can turn them=20 around.  I'll also ask about the temp of the process, because = Bruce said=20 his shop doesn't damage the bearings.  I can't recall now who = said this=20 would happen.  I could possibly send them the rotors, and = get them=20 back in time to stay on my original schedule, so it's at = least worth=20 looking into.  
 
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