X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mail09.syd.optusnet.com.au ([211.29.132.190] verified) by logan.com (CommuniGate Pro SMTP 5.2.1) with ESMTPS id 2810672 for flyrotary@lancaironline.net; Thu, 20 Mar 2008 17:20:57 -0400 Received-SPF: pass receiver=logan.com; client-ip=211.29.132.190; envelope-from=lendich@optusnet.com.au Received: from george (d58-105-145-109.dsl.nsw.optusnet.com.au [58.105.145.109]) by mail09.syd.optusnet.com.au (8.13.1/8.13.1) with SMTP id m2KLK9SL020171 for ; Fri, 21 Mar 2008 08:20:11 +1100 Message-ID: <001301c88ad0$2e815e40$6d91693a@george> From: "George Lendich" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Ceramic coated rotors Date: Fri, 21 Mar 2008 07:20:09 +1000 MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=response Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 X-Antivirus: avast! (VPS 0657-0, 12/12/2006), Outbound message X-Antivirus-Status: Clean Ernest, I saw a video of similar method of lapping the housings - they used lapping paste between two housings on a slow running mill with a cam in the chuck. The cam pushed the top housing around, there didn't appear to be any pressure on the top housing. It might kill two birds with one stone, I'm thinking of doing that myself. Just a suggestion! George (down under) >I cleaned the rotors by soaking them in a MEK/laquer thinner mix overnight. >Blasted with 60-grit silica at 80psi in my homemade blast cabinet, then >brushed them down with MEK again. Sprayed with TechLine's CBC1 and baked >in the Wal-Mart special toaster oven. I sprayed them down with WD-40 to >keep the rust at bay until I can reassemble the engine. > > http://ernest.isa-geek.org/Delta/Pictures/ToolsBlastCabinet2.jpg > http://ernest.isa-geek.org/Delta/Pictures/EngineCeramicCoatingBaking1.jpg > http://ernest.isa-geek.org/Delta/Pictures/EngineCeramicCoatingRotorThermalBarrier1.jpg > http://ernest.isa-geek.org/Delta/Pictures/EngineCeramicCoatingRotorThermalBarrier2.jpg > > I'm now in the process of lapping the side housings. I'm spreading valve > grinding compound onto the housing, and then pushing it around on a glass > table top. Results are good, even if the process is somewhat laborious. > It leaves a roughended texture, which should be just about right for > applying TechLine's DFL1. The housings are to big for my toaster oven, so > I'll most like convert my homemade blasting cabinet to a homemade oven > with a few halogen light bulbs. Techline's coating cure at 300F, which > isn't difficult to attain and maintain. > > > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: > http://mail.lancaironline.net:81/lists/flyrotary/List.html > > > -- > No virus found in this incoming message. > Checked by AVG. Version: 7.5.519 / Virus Database: 269.21.7/1334 - Release > Date: 18/03/2008 8:52 PM >