Return-Path: Received: from mail13.syd.optusnet.com.au ([211.29.132.194] verified) by logan.com (CommuniGate Pro SMTP 4.2.8) with ESMTP-TLS id 617178 for flyrotary@lancaironline.net; Sat, 22 Jan 2005 00:52:01 -0500 Received-SPF: none receiver=logan.com; client-ip=211.29.132.194; envelope-from=lendich@optusnet.com.au Received: from george (d211-31-72-158.dsl.nsw.optusnet.com.au [211.31.72.158] (may be forged)) by mail13.syd.optusnet.com.au (8.12.11/8.12.11) with SMTP id j0M5pQsc023917 for ; Sat, 22 Jan 2005 16:51:27 +1100 Message-ID: <006201c50046$ac1400f0$9e481fd3@george> From: "George Lendich" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: flex plate Date: Sat, 22 Jan 2005 15:53:17 +1000 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_005F_01C5009A.7D721800" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 This is a multi-part message in MIME format. ------=_NextPart_000_005F_01C5009A.7D721800 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Paul, Taking the risk of telling you what you may already know, I will give = you what info I have. =20 The flexplates come from automatics and as such are balanced in = themselves, you may even see a balance tab on the flexplate. The manual flywheels are balanced units for the model their on. Therefore the flexplates need a counter weight for the balance = purposes i.e. front and rear counter weight for automatics/ flexplates. Therefore any flexplate will fit any year model PROVIDED the = counterweight is that year model - I believe many counterweights are = interchangeable but I'm not sure which can change with which, best to = get advice from Rotary suppliers. Like Ross if you wanted to used an aluminium flywheel OR lightened = flywheel (similar weight) you can use that as well PROVIDED you get the = right counterweight. Hope that helps with your rebuild. George (down under) Thank you, Kelly. Paul Conner ----- Original Message -----=20 From: Kelly Troyer=20 To: Rotary motors in aircraft=20 Sent: Friday, January 21, 2005 10:37 PM Subject: [FlyRotary] Re: flex plate OK Paul, I have been out of town so may be late with this info !! = Ross used the flexplates from the 12A to 1973 and (some 1974) top = mounted starter rotary engines until they became hard to find....Then they = started=20 making them from aluminum and adding a ring gear for the starter !! = These flexplates are smaller in diameter than the later ones......FWIW -- Kelly Troyer=20 Dyke Delta/13B/RD1C/EC2=20 > > > On Mon, 17 Jan 2005 09:44:03 -0600=20 > > > "Paul" wrote:=20 > > >=20 > > >> OK....I am going to openly display my ignorance here....I had = my=20 > > >Ross > PSRU off only one time, when I had the thrust bearing = mod=20 > > >done. I > simply reinstalled it opposite of how I took it off. = That=20 > > >was some > time ago, and I can't recall what it looked like = where it=20 > > >mated to the > flywheel. Did the Ross also use an auto flex = plate?=20 > > >I remember the > shaft was splined. That's about all I recall. = I am=20 > > >asking this, > because I have purchased a set of street ported = 4-port=20 > > >plates to which > I will add a set of NA rotors and housings to = build=20 > > >up a complete > engine so I will lessen my "downtime" by = hopefully > > >ready to bolt on and > run. I'm assuming that the stock, = cast iron=20 > > >flywheel I have if from > a standard transmission RX7. Are the=20 > > >automatic and standard flywheels > different, or do you just = add an=20 > > >automatic transmission flex plate to > the cast iron flywheel I = > > >already have? Just when I thought I had > everything figured = out, I=20 > > >start reading new posts about flex > plates....=20 > > >> Thanks in advance for any and all replies/suggestions. Paul,=20 > > >> what the heck is a flexplate, Conner=20 -------------------------------------------------------------------------= --- >> Homepage: http://www.flyrotary.com/ >> Archive: http://lancaironline.net/lists/flyrotary/List.html -------------------------------------------------------------------------= --- No virus found in this incoming message. Checked by AVG Anti-Virus. Version: 7.0.300 / Virus Database: 265.7.1 - Release Date: 1/19/2005 -------------------------------------------------------------------------= ----- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.300 / Virus Database: 265.7.1 - Release Date: 1/19/2005 -------------------------------------------------------------------------= ----- >> Homepage: http://www.flyrotary.com/ >> Archive: http://lancaironline.net/lists/flyrotary/List.html ------=_NextPart_000_005F_01C5009A.7D721800 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
 
Paul,
Taking the risk of telling = you what=20 you may already know, I will give you what info I have.
 
The flexplates come from automatics = and as such=20 are balanced in themselves, you may even see a balance tab on the = flexplate.
 
The manual flywheels are balanced = units for the=20 model their on.
 
Therefore the flexplates need a = counter weight=20 for the balance purposes i.e. front and rear counter weight for = automatics/=20 flexplates.
 
Therefore any flexplate will fit any = year model=20 PROVIDED the counterweight is that year model - I believe many = counterweights=20 are interchangeable but I'm not sure which can change with which, best = to get=20 advice from Rotary suppliers.
 
Like Ross if you wanted to used an = aluminium=20 flywheel OR lightened flywheel (similar weight) you can use that as = well=20 PROVIDED you get the right counterweight.
 
Hope that helps with your = rebuild.
George (down under)
 
Thank you, Kelly.  Paul = Conner
----- Original Message -----
From:=20 Kelly = Troyer
To: Rotary motors in = aircraft=20
Sent: Friday, January 21, = 2005 10:37=20 PM
Subject: [FlyRotary] Re: flex = plate

OK Paul, I have been out of town so may be late with this info = !!=20 Ross
used the flexplates from the 12A to 1973 = and  (some=20 1974) top mounted
starter rotary engines until they became hard to find....Then = they=20 started
making them from aluminum and adding a ring gear for the = starter !!=20 These
flexplates are smaller in diameter than the later = ones......FWIW
--
Kelly Troyer
Dyke=20 Delta/13B/RD1C/EC2 

> > > On Mon, 17 Jan 2005 = 09:44:03=20 -0600
> > > "Paul" wrote: =
> >=20 >
> > >> OK....I am going to openly display my = ignorance=20 here....I had my
> > >Ross > PSRU off only one time, = when I=20 had the thrust bearing mod
> > >done. I > simply = reinstalled=20 it opposite of how I took it off. That
> > >was some = > time=20 ago, and I can't recall what it looked like where it
> > = >mated=20 to the > flywheel. Did the Ross also use an auto flex plate? =
>=20 > >I remember the > shaft was splined. That's about all I = recall. I=20 am
> > >asking this, > because I have purchased a = set of=20 street ported 4-port
> > >plates to which > I will = add a set=20 of NA rotors and housings to build
> > >up a complete = >=20 engine so I will lessen my "downtime" by hopefully >=20 > >ready to bolt on and > run. I'm assuming that the stock, = cast=20 iron
> > >flywheel I have if from > a standard = transmission=20 RX7. Are the
> > >automatic and standard flywheels > = different, or do you just add an
> > >automatic = transmission=20 flex plate to > the cast iron flywheel I
> > = >already have?=20 Just when I thought I had > everything figured out, I
> = >=20 >start reading new posts about flex > plates....
> > = >> Thanks in advance for any and all replies/suggestions. = Paul,=20
> > >> what the heck is a flexplate, Conner =

>>  Homepage: =20 http://www.flyrotary.com/
>>  Archive:  =20 http://lancaironline.net/lists/flyrotary/List.html

No virus found in this incoming message.
Checked by AVG=20 Anti-Virus.
Version: 7.0.300 / Virus Database: 265.7.1 - Release = Date:=20 1/19/2005

No virus found in this outgoing message.
Checked by AVG=20 Anti-Virus.
Version: 7.0.300 / Virus Database: 265.7.1 - Release = Date:=20 1/19/2005

>>  Homepage: =20 http://www.flyrotary.com/
>>  Archive:  =20 = http://lancaironline.net/lists/flyrotary/List.html
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