X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mail-iy0-f180.google.com ([209.85.210.180] verified) by logan.com (CommuniGate Pro SMTP 5.4.0) with ESMTPS id 5049235 for flyrotary@lancaironline.net; Tue, 12 Jul 2011 08:32:44 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.210.180; envelope-from=rwstracy@gmail.com Received: by iyh42 with SMTP id 42so7318286iyh.25 for ; Tue, 12 Jul 2011 05:32:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=subject:references:from:content-type:x-mailer:in-reply-to :message-id:date:to:content-transfer-encoding:mime-version; bh=cwtPF5cBAcD6kh8xgfsupW4Ye+2zw98xF6vsRlAJgok=; b=pRTKS6UVcBhaD/E2lJVvgAe80LAEmpKyGkD1GRw/6+qPLjLrp4/MoldazATN0YOuAX TdbJJ2tttxvbiLC3DWZkTa2exmG5Daylxet2WqloOPb4ZbPbxM+PLL1wcUZNG6CzCmzu MnmSpPGRwlQ8cM1M1ZVidEtUq/gE7MMEu5aE0= Received: by 10.231.42.5 with SMTP id q5mr5597484ibe.17.1310473928651; Tue, 12 Jul 2011 05:32:08 -0700 (PDT) Return-Path: Received: from [10.0.1.3] (99-197-145-127.cust.wildblue.net [99.197.145.127]) by mx.google.com with ESMTPS id x11sm2017911ibd.7.2011.07.12.05.31.59 (version=TLSv1/SSLv3 cipher=OTHER); Tue, 12 Jul 2011 05:32:07 -0700 (PDT) Subject: Re: [FlyRotary] Re: Fwd: RD-1B failure References: From: Tracy Content-Type: multipart/alternative; boundary=Apple-Mail-7--693241571 X-Mailer: iPad Mail (8F191) In-Reply-To: Message-Id: <44B0E458-014F-442B-A873-A14AC662C047@gmail.com> Date: Tue, 12 Jul 2011 08:31:49 -0400 To: Rotary motors in aircraft Content-Transfer-Encoding: 7bit Mime-Version: 1.0 (iPad Mail 8F191) --Apple-Mail-7--693241571 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 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 recommended pr= ocedure 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 adapt= er 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. > =20 > Brian Trubee >=20 >=20 >=20 > -----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 >=20 > I tried to get into the gear box today, but ran into an impasse trying to g= et the bell housing off the adapter plate... I think I am done using RTV th= ere. Will probably use a non-adhesive sealant - as long as Tracy says we do= n't need the adhesion from the RTV. >=20 > I did find another issue. In addition to a likely fin failure inside the g= ear box, the flex plate is coming apart. I found a piece of it in my cowl a= nd it is tearing in several places. Still seems to be tracking OK. >=20 > 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 shou= ld otherwise be an improvement for idle and pulse dampening. But maybe gyro= scopic loads would be unacceptably high? Maybe have to move and/or replace t= he starter. >=20 > Will try to get some pictures tomorrow. >=20 > --=20 > David Leonard >=20 > Turbo Rotary RV-6 N4VY > http://N4VY.RotaryRoster.net > http://RotaryRoster.net >=20 > On Mon, Jul 11, 2011 at 11:51 AM, Mark Steitle wrote:= > Al, > =20 > My gearbox failure was approx. 1-1/2 years ago. I attributed the failure t= o 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 De= ad Stick Landings" plaque, thank you!)=20 > =20 > If I am correct, Tracy installed a 3/8" pin in my input shaft. No failure= s since. I now have approx. 200 hours on the engine/gearbox. > =20 > Mark >=20 > On Mon, Jul 11, 2011 at 10:23 AM, David Leonard wrot= e: > From: Al Gietzen > Date: Mon, Jul 11, 2011 at 8:17 AM > Subject: RD-1B failure > To: Dave Leonard >=20 >=20 > Hi; Dave, > =20 > I=E2=80=99m very thankful to hear that this occurred after landing. > =20 > I=E2=80=99ve been unable to post on the rotary engine list for months due t= o blocking by Cox. Perhaps you=E2=80=99d post this message on my behalf: > =20 > ---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 20B, I hav= e changed the pin diameter > =20 > Tracy; > =20 > Doesn=E2=80=99t this suggest that all 20B and 13B turbo should be upgraded= to the larger pin? When was the failure on Mark=E2=80=99s 20B? > =20 > Al > ---=20 >=20 >=20 >=20 >=20 --Apple-Mail-7--693241571 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=utf-8
I don't think Hylomar is a sealant and w= ould not recommend it for use on the RD-1x drive.   Current instruction= s for the drive describe a recommended procedure for separating the drive fr= om adapter plate.  It also helps to put a light coat of oil and wipe of= f excess before assembly of the drive to adapter plate.

=
Tracy

Sent from my iPad

On Jul 12, 2011, at 1:22 A= M, bktrub@aol.com wrote:

=
Ask  Tracy about using Hylomar as a sealant.
 
Brian Trubee



-= ----Original Message-----
From: David Leonard <wdleonard@gma= il.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 hou= sing off the adapter plate...  I think I am done using RTV there. = Will probably use a non-adhesive sealant - as long as Tracy says we don't n= eed the adhesion from the RTV.

I did find another issue.  In addition to a likely fin failure inside t= he gear box, the flex plate is coming apart.  I found a piece of it in m= y cowl 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.&n= bsp; Would have to drill some holes to attach Tracy's torque plate, but it s= hould otherwise be an improvement for idle and pulse dampening.  But ma= ybe gyroscopic loads would be unacceptably high?  Maybe have to move an= d/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 w= ith a mod to the EC-2 and CAS.  I was lucky that it happened on the gro= und.  (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. &nb= sp;No failures since.  I now have approx. 200 hours on the engine/gearb= ox.
 
Mark
On Mon, Jul 11, 2011 at 10:23 AM, David Leonard <= span dir=3D"ltr"><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=E2=80=99m very thankful to hear that t= his occurred after landing.
 
I=E2=80=99ve been unable to post on the= rotary engine list for months due to blocking by Cox.  Perhaps you=E2=80= =99d post this message on my behalf:
 
---The shear pin on the sun gear is the most likely c= andidate since it was sized for a normally aspirated 13B.   After the f= ailure on Marks 20B, I have changed the pin diameter
 
Tracy;
 
Doesn=E2=80= =99t this suggest that all 20B and 13B turbo should be upgraded to the large= r pin? When was the failure on Mark=E2=80=99s 20B?
 
Al
--- 




= --Apple-Mail-7--693241571--