X-CGP-ClamAV-Result: CLEAN X-VirusScanner: Niversoft's CGPClamav Helper v1.23.0 (ClamAV engine v0.103.0) From: "Finn Lassen finn.lassen@verizon.net" Received: from sonic317-33.consmr.mail.ne1.yahoo.com ([66.163.184.44] verified) by logan.com (CommuniGate Pro SMTP 6.2.14) with ESMTPS id 1461351 for flyrotary@lancaironline.net; Wed, 28 Apr 2021 17:38:29 -0400 Received-SPF: pass receiver=logan.com; client-ip=66.163.184.44; envelope-from=finn.lassen@verizon.net DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=verizon.net; s=a2048; t=1619645893; bh=kLTTLHE1y0LGMRbijrCOF5Rsy67SqsSZLDJu4tT2C10=; h=Subject:To:References:From:Date:In-Reply-To:From:Subject:Reply-To; b=f3nX4HW9W+ChsD1IXOt1fBx1NOWLtrbkV/FaAtfoJQrlyx7jj9e4plc0pr9EQWMu3I7+OLvRd3SGakYdyxi+8QuusovIycv+O+z5uEcbclR8Kxs5LbmqtSWimLqqdIWps1RmGTiBvghP1ewaVLBYwrFxRJUS9EIByWolfrESIcxHYusJFKw4UMmMmt5qfGuKxIX0BjV4hMJ5VE51M2bsVrncZtCgpCjfSCnLtwk8oLSOrnHBXRzFwAKY+unXyov5AmLvFdgTinhYBxTk7ebpRzmGsSVulU/X1IQZ2ICx8D3nMo00glpiNhQqXqqjFQWShdcUvJXVI55/KV4/22p4YA== X-SONIC-DKIM-SIGN: v=1; 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Wed, 28 Apr 2021 21:38:13 +0000 Received: by kubenode546.mail-prod1.omega.ne1.yahoo.com (VZM Hermes SMTP Server) with ESMTPA ID ca91a4716d90fec437b0ce58c898793f; Wed, 28 Apr 2021 21:38:08 +0000 (UTC) Subject: Re: [FlyRotary] Re: PSRU thrust bearing/washer To: Rotary motors in aircraft References: Message-ID: Date: Wed, 28 Apr 2021 17:38:05 -0400 User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/alternative; boundary="------------F011C3C4C1BEC436D5361C34" Content-Language: en-US X-Antivirus: Avast (VPS 210428-4, 04/28/2021), Outbound message X-Antivirus-Status: Clean X-Mailer: WebService/1.1.18138 mail.backend.jedi.jws.acl:role.jedi.acl.token.atz.jws.hermes.aol Apache-HttpAsyncClient/4.1.4 (Java/16) Content-Length: 10551 This is a multi-part message in MIME format. --------------F011C3C4C1BEC436D5361C34 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Looks like a nylon rod drilled, chamfered and cut to length with a saw. I guess it must also have been sanded to the thickness required for the drive it was supplied with. Nothing fancy and definitely does not look like an of-the-shelf item. I'll try to remember to ask him exactly what material next time I see him. Something else must be going on here. You don't have a restriction in the oil supply line, right? Finn On 4/28/2021 4:13 PM, Matt Boiteau mattboiteau@gmail.com wrote: > The end play was good. Metal ruler across and could just see daylight > across. > > Neil's uses a rubber oring, so we test endplay without it. Then adding > the oring will add the nessessary clearance in end play. > > The one Neil supplied was either nylon or Teflon flat washer and it > melted, so removed it. So talking with him, switched it out to the oil > embedded one. Again, just a flat washer. > > Anyone have more details what Tracey used? Like a spring washer made > out of nylon? > > > > > > On Wed., Apr. 28, 2021, 14:16 Finn Lassen finn.lassen@verizon.net > , > wrote: > > Too little or too much end play? > > Tracy specifies 0.005 to 0.035" > > Note that if you check it without RTV, it may increase when you > assemble it. > > Finn > > On 4/28/2021 1:05 PM, Matt Boiteau mattboiteau@gmail.com > wrote: >> I have one of Neil's 3.17 psru with Tracey's cushion drive. *I >> also sent Neil an email but it's late in the night in Australia. >> >> After my fly off hours, tearing down the plane to inspect >> everything. The Ultra-Low-Friction Oil-Embedded Thrust Bearing is >> broken into pieces. >> https://wwwmcmastercom/7421K28/ >> >> The nylon or teflon washer supplied just melted. I thought I >> nailed it with a fix using the oil-embedded, but I guess not. >> >> I think in Tracey's documentation, he called it a snubber ? Any >> ideas what I can use, or why this happens? >> - Matt Boiteau >> >> >> -- >> Homepage:http://www.flyrotary.com/ >> Archive and UnSub:http://mail.lancaironline.net:81/lists/flyrotary/List.html > > > ------------------------------------------------------------------------ > Avast logo > > This email has been checked for viruses by Avast antivirus software. > www.avast.com > > > <#m_1371103534129407806_m_-7051677788530083193_m_7353984697272831048_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> > --------------F011C3C4C1BEC436D5361C34 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 8bit
Looks like a nylon rod drilled, chamfered and cut to length with a saw. I guess it must also have been sanded to the thickness required for the drive it was supplied with.

Nothing fancy and definitely does not look like an of-the-shelf item.

I'll try to remember to ask him exactly what material next time I see him.

Something else must be going on here. You don't have a restriction in the oil supply line, right?

Finn

On 4/28/2021 4:13 PM, Matt Boiteau mattboiteau@gmail.com wrote:
The end play was good. Metal ruler across and could just see daylight across.

Neil's uses a rubber oring, so we test endplay without it. Then adding the oring will add the nessessary clearance in end play.

The one Neil supplied was either nylon or Teflon flat washer and it melted, so removed it. So talking with him, switched it out to the oil embedded one. Again, just a flat washer.

Anyone have more details what Tracey used? Like a spring washer made out of nylon?





On Wed., Apr. 28, 2021, 14:16 Finn Lassen finn.lassen@verizon.net, <flyrotary@lancaironline.net> wrote:
Too little or too much end play?

Tracy specifies 0.005 to 0.035"

Note that if you check it without RTV, it may increase when you assemble it.

Finn

On 4/28/2021 1:05 PM, Matt Boiteau mattboiteau@gmail.com wrote:
I have one of Neil's 3.17 psru with Tracey's cushion drive. *I also sent Neil an email but it's late in the night in Australia.

After my fly off hours, tearing down the plane to inspect everything. The Ultra-Low-Friction Oil-Embedded Thrust Bearing is broken into pieces. 
https://wwwmcmastercom/7421K28/

The nylon or teflon washer supplied just melted. I thought I nailed it with a fix using the oil-embedded, but I guess not.

I think in Tracey's documentation, he called it a snubber ? Any ideas what I can use, or why this happens?
- Matt Boiteau


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