X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mail-ew0-f52.google.com ([209.85.215.52] verified) by logan.com (CommuniGate Pro SMTP 5.4.0) with ESMTPS id 5049454 for flyrotary@lancaironline.net; Tue, 12 Jul 2011 11:24:40 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.215.52; envelope-from=wdleonard@gmail.com Received: by ewy28 with SMTP id 28so1672374ewy.25 for ; Tue, 12 Jul 2011 08:24:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=rE+ESQ4XPDXad86U1hb9cvimVKQ2obyMBHo1symI3T4=; b=PnoEs24oQduvWtnmpiUoWBA7cxMmE3Ad+SKqdqdSEa2ySt5fDMhllallZg+1gNMI+a Rj2pig0QQWj6iCYwwNxpsnLTKTM/MaUQF9hkq5mBmahaR1IEUUgTCToZK5OMHM049eVv q6U51MES0xQSCC702AXV30ESICvULwPjsC6YE= MIME-Version: 1.0 Received: by 10.213.8.135 with SMTP id h7mr1434934ebh.108.1310484243268; Tue, 12 Jul 2011 08:24:03 -0700 (PDT) Received: by 10.213.27.208 with HTTP; Tue, 12 Jul 2011 08:24:03 -0700 (PDT) In-Reply-To: References: Date: Tue, 12 Jul 2011 08:24:03 -0700 Message-ID: Subject: Re: [FlyRotary] Re: Fwd: RD-1B failure From: David Leonard To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary=0015174c4518cdc4a904a7e0e3af --0015174c4518cdc4a904a7e0e3af Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable Tracy, What say you about using the heavy manual transmission flywheel if I can ge= t it milled and fitting? - David Leonard Turbo Rotary RV-6 N4VY http://N4VY.RotaryRoster.net http://RotaryRoster.net On Tue, Jul 12, 2011 at 5:31 AM, Tracy wrote: > I don't think Hylomar is a sealant and would not recommend it for use on > the RD-1x drive. Current instructions for the drive describe a recommen= ded > procedure for separating the drive from adapter plate. It also helps to = put > a light coat of oil and wipe off excess before assembly of the drive to > adapter plate. > > Tracy > > Sent from my iPad > > On Jul 12, 2011, at 1:22 AM, bktrub@aol.com wrote: > > Ask Tracy about using Hylomar as a sealant. > > Brian Trubee > > > > -----Original Message----- > From: David Leonard > To: Rotary motors in aircraft > Sent: Mon, Jul 11, 2011 10:15 pm > Subject: [FlyRotary] Re: Fwd: RD-1B failure > > I tried to get into the gear box today, but ran into an impasse trying to > get the bell housing off the adapter plate... I think I am done using RT= V > there. Will probably use a non-adhesive sealant - as long as Tracy says = we > don't need the adhesion from the RTV. > > I did find another issue. In addition to a likely fin failure inside the > gear box, the flex plate is coming apart. I found a piece of it in my co= wl > and it is tearing in several places. Still seems to be tracking OK. > > You know, I wouldn't mind the weight penalty of using the manual flywheel= . > Would have to drill some holes to attach Tracy's torque plate, but it sho= uld > otherwise be an improvement for idle and pulse dampening. But maybe > gyroscopic loads would be unacceptably high? Maybe have to move and/or > replace the starter. > > Will try to get some pictures tomorrow. > > -- > David Leonard > > Turbo Rotary RV-6 N4VY > http://N4VY.RotaryRoster.net > http://RotaryRoster.net > > On Mon, Jul 11, 2011 at 11:51 AM, Mark Steitle < > msteitle@gmail.com> wrote: > >> Al, >> >> My gearbox failure was approx. 1-1/2 years ago. I attributed the >> failure to a very rough running engine which was cured with a mod to the >> EC-2 and CAS. I was lucky that it happened on the ground. (Ed can keep= his >> "King of Dead Stick Landings" plaque, thank you!) >> >> If I am correct, Tracy installed a 3/8" pin in my input shaft. No >> failures since. I now have approx. 200 hours on the engine/gearbox. >> >> Mark >> >> On Mon, Jul 11, 2011 at 10:23 AM, David Leonard < >> wdleonard@gmail.com> wrote: >> >>> From: Al Gietzen < ALVentures@cox.net> >>> Date: Mon, Jul 11, 2011 at 8:17 AM >>> Subject: RD-1B failure >>> To: Dave Leonard < wdleonard@gmail.com> >>> >>> >>> Hi; Dave, >>> >>> I=92m very thankful to hear that this occurred after landing. >>> >>> I=92ve been unable to post on the rotary engine list for months due to >>> blocking by Cox. Perhaps you=92d post this message on my behalf: >>> >>> ---The shear pin on the sun gear is the most likely candidate since it >>> was sized for a normally aspirated 13B. After the failure on Marks 20= B, I >>> have changed the pin diameter >>> >>> Tracy; >>> >>> Doesn=92t this suggest that all 20B and 13B turbo should be upgraded to= the >>> larger pin? When was the failure on Mark=92s 20B? >>> >>> Al >>> --- >>> >>> >> > > - --0015174c4518cdc4a904a7e0e3af Content-Type: text/html; charset=windows-1252 Content-Transfer-Encoding: quoted-printable Tracy,
What say you about using the heavy manual transmission flywheel i= f I can get it milled and fitting?

-
David Leonard

Turbo = Rotary RV-6 N4VY
http://N4VY.Ro= taryRoster.net
http://RotaryRoster.net

On Tue, Jul 12, 2011 at 5:31 AM, Tracy <rwstracy@gmail.com> wrote:
I don't think Hylomar is a sealant and would not recommend= it for use on the RD-1x drive. =A0 Current instructions for the drive desc= ribe a recommended procedure for separating the drive from adapter plate. = =A0It also helps to put a light coat of oil and wipe off excess before asse= mbly of the drive to adapter plate.

Tracy

Sent from my iPad

On Jul 12, 2011, at 1:22 AM, bktrub@aol.com wrote:

<= /div>
Ask =A0Tracy about using Hylomar as a sealant.
=A0
Brian Trubee



-----Original Message-----
From: David Leonard <wdleonard@gmail.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Mon, Jul 11, 2011 10:15 pm
Subject: [FlyRotary] Re: Fwd: RD-1B failure

I tried to get into the gear box today, but ran into an impasse trying= to get the bell housing off the adapter plate...=A0 I think I am done usin= g RTV there.=A0 Will probably use a non-adhesive sealant - as long as Tracy= says we don't need the adhesion from the RTV.

I did find another issue.=A0 In addition to a likely fin failure inside the= gear box, the flex plate is coming apart.=A0 I found a piece of it in my c= owl and it is tearing in several places. Still seems to be tracking OK.

You know, I wouldn't mind the weight penalty of using the manual flywhe= el.=A0 Would have to drill some holes to attach Tracy's torque plate, b= ut it should otherwise be an improvement for idle and pulse dampening.=A0 B= ut maybe gyroscopic loads would be unacceptably high?=A0 Maybe have to move= and/or replace the starter.

Will try to get some pictures tomorrow.

--
David Leonard

Turbo Rotary RV-6 N4VY
http://N4VY.RotaryRoster.ne= t
http://RotaryRoster.net

On Mon, Jul 11, 2011 at 11:51 AM, Mark Steitle <= span dir=3D"ltr"><msteitle@gmai= l.com> wrote:
Al,
=A0
My gearbox failure was approx. 1-1/2 years ago.=A0 I attributed=A0the = failure=A0to a very rough running engine which=A0was cured=A0with a mod to = the EC-2 and CAS.=A0 I was lucky that it happened on the ground. =A0(Ed can= keep his "King of Dead Stick Landings" plaque, thank you!)=A0
=A0
If I am correct, Tracy installed a 3/8" pin in my input shaft.=A0= =A0No failures since.=A0 I now have approx. 200 hours on the engine/gearbox= .
=A0
Mark
On Mon, Jul 11, 2011 at 10:23 AM, David Leonard = <wdleonard@= gmail.com> wrote:
From: Al Gietzen <ALVenture= s@cox.net>
Date: Mon, Jul 11, 2011 at 8:17 AM
Subject: RD-1B failure
To: Dave Leonard <wdleonard@g= mail.com>


Hi; Dave= ,
=A0
I=92m very thankful to hear that thi= s occurred after landing.
=A0
I=92ve been unable to post on the ro= tary engine list for months due to blocking by Cox.=A0 Perhaps you=92d post= this message on my behalf:
=A0
---The shear pin on the sun gear is the most likel= y candidate since it was sized for a normally aspirated 13B. =A0 After the = failure on Marks 20B, I have changed the pin diameter
<= span style=3D"font-family: Verdana; color: blue; font-size: 11pt;">=A0
<= span style=3D"font-family: Verdana; color: blue; font-size: 11pt;">Tracy;
<= span style=3D"font-family: Verdana; color: blue; font-size: 11pt;">=A0
<= span style=3D"font-family: Verdana; color: blue; font-size: 11pt;">Doesn=92= t this suggest that all 20B and 13B turbo should be upgraded to the larger = pin? When was the failure on Mark=92s 20B?
<= span style=3D"font-family: Verdana; color: blue; font-size: 11pt;">=A0
<= span style=3D"font-family: Verdana; color: blue; font-size: 11pt;">Al
<= span style=3D"font-family: Verdana; color: blue; font-size: 11pt;">---=A0



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