X-Virus-Scanned: clean according to Sophos on Logan.com From: "Tracy" Received: from mail-yh0-f42.google.com ([209.85.213.42] verified) by logan.com (CommuniGate Pro SMTP 6.0.9e) with ESMTPS id 6890346 for flyrotary@lancaironline.net; Wed, 21 May 2014 07:21:12 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.213.42; envelope-from=rwstracy@gmail.com Received: by mail-yh0-f42.google.com with SMTP id t59so1523009yho.1 for ; Wed, 21 May 2014 04:20:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=subject:references:from:content-type:in-reply-to:message-id:date:to :content-transfer-encoding:mime-version; bh=okHPeyPXBloqmfIUKfvcY0rN4IVRrUpAuGeAGdK9W3k=; b=EETGUB/gouD97BimpZaoO2WObPSdWski2K/npqSh/bp19+zbohZqpu9FpaJtokELrn Ozz1r8N47SRQsNNOiRMrjKcx0H2R3UW2usOdUxkZyE3bxRa4ANO2AXkd9gpS28jJX7eD J1RmbK+5MIeoNNdZWq2vq9BnJe8r8TogeSLULgCIuoBx/YlcIKyc4340mAvoadCh29nQ LKIbYmzP3URREKB8Ocn9T8lNcydJ2sW+xPyeIPXvO9JlRdkfB6f+owCc+9zJM5fPJ/Tp qxjIVCSFZkT6aWyR3kspHyL2+84sClJWk+EQtw+hMy8QplcIMJ2h+SpOYXxLjqIUkIGc 0/Dw== X-Received: by 10.236.159.67 with SMTP id r43mr74922074yhk.50.1400671236613; Wed, 21 May 2014 04:20:36 -0700 (PDT) Return-Path: Received: from [192.168.1.5] (22.sub-70-209-0.myvzw.com. [70.209.0.22]) by mx.google.com with ESMTPSA id n45sm23754878yho.32.2014.05.21.04.20.32 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Wed, 21 May 2014 04:20:35 -0700 (PDT) Subject: Re: [FlyRotary] Re: flexplate / flywheel saga continued References: Content-Type: multipart/alternative; boundary=Apple-Mail-927D28A3-E122-45F1-82E8-3625112764DA X-Mailer: iPad Mail (11D201) In-Reply-To: Message-Id: <0427B0EB-7843-45FA-B188-6E4C605D4603@gmail.com> Date: Wed, 21 May 2014 07:20:30 -0400 To: Rotary motors in aircraft Content-Transfer-Encoding: 7bit Mime-Version: 1.0 (1.0) --Apple-Mail-927D28A3-E122-45F1-82E8-3625112764DA Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable All those racers were running manual trans too, so that may not be the fact= or.=20 Tracy Sent from my iPad > On May 20, 2014, at 21:09, "Charlie England" = wrote: >=20 > Yes, this one's definitely for a manual transmission (hence the worn surfa= ce). There was a discussion many months ago about modifying the drive to use= a manual transmission flywheel because of cracking issues with the flexplat= es. >=20 > Charlie >=20 >=20 >> On 5/20/2014 5:09 PM, Rogers, Bob J. wrote: >> Charlie, >> =20 >> I think there is a difference (in diameter) between the automatic transmi= ssion flex plate that you currently have and a manual transmission flywheel.= I suspect that the flywheel you bought is for a manual transmission engine.= >> Bob J. Rogers >> Mustang II, 13B Turbo >> =20 >> From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]=20 >> Sent: Tuesday, May 20, 2014 4:10 PM >> To: Rotary motors in aircraft >> Subject: [FlyRotary] Re: flexplate / flywheel saga continued >> =20 >> Hi Charlie, >> =20 >> My flywheel was exactly the same diameter, thought the teeth were closer t= o the engine a little. I think there may be a difference between the turbo a= nd non- turbo. We hashed all that out a couple years ago.. its in the archi= ves. You can also check the Mazdatrix website to see the different models. >> =20 >> Good Luck, >> David Leonard=20 >> =20 >>=20 >> On Tue, May 20, 2014 at 12:25 PM, Charlie England wrote: >> Well, I recently bought a used aluminum flywheel with the following descr= iption: >>=20 >> Quote:=20 >> RX7 8.5Lb Fidanza Aluminum Flywheel for FB or FC >> For sale is a 8.5lb Aluminum Fidanza Flywheel for a RX7 Non Turbo , its u= sed and could use a new friction plate >> fits 86-91 Non turbo RX7s might fit Fb 2nd gen RX7s as well i'm not 100% s= ure >> Unquote. >>=20 >> It was reasonably priced, since I don't need the wear surface, so I figur= ed it would be 'plan B' if I ever have an issue with the flex plate.=20 >>=20 >> When it arrived (yesterday, after everyone was gone), I sat it on top of m= y (cracked) flex plate, and it's almost an inch smaller in diameter. The mou= nting holes in the center seem to line up properly. I remember reading about= milling the drive plate to move the starter .2" closer to the engine, but I= don't remember anything about the smaller diameter.=20 >>=20 >> So, my questions:=20 >> Did I purchase the wrong item, would I simply make my starter cutout in t= he plate closer to the centerline to account for the smaller diameter, or wa= s the flywheel mis-represented? >>=20 >> If it's not the described item, I need to send it back, but I don't want t= o bother the seller if I simply bought the wrong flywheel. >>=20 >> Thanks, >>=20 >> Charlie >>=20 >> -- >> Homepage: http://www.flyrotary.com/ >> Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/Lis= t.html >>=20 >=20 --Apple-Mail-927D28A3-E122-45F1-82E8-3625112764DA Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 7bit
All those racers were running manual trans too,  so that may not be the factor. 

Tracy

Sent from my iPad

On May 20, 2014, at 21:09, "Charlie England" <flyrotary@lancaironline.net> wrote:

Yes, this one's definitely for a manual transmission (hence the worn surface). There was a discussion many months ago about modifying the drive to use a manual transmission flywheel because of cracking issues with the flexplates.

Charlie


On 5/20/2014 5:09 PM, Rogers, Bob J. wrote:

Charlie,

 

I think there is a difference (in diameter) between the automatic transmission flex plate that you currently have and a manual transmission flywheel. I suspect that the flywheel you bought is for a manual transmission engine.

Bob J. Rogers

Mustang II, 13B Turbo

 

From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]
Sent: Tuesday, May 20, 2014 4:10 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: flexplate / flywheel saga continued

 

Hi Charlie,

 

My flywheel was exactly the same diameter, thought the teeth were closer to the engine a little.  I think there may be a difference between the turbo and non- turbo.  We hashed all that out a couple years ago.. its in the archives.  You can also check the Mazdatrix website to see the different models.

 

Good Luck,

David Leonard 

 

On Tue, May 20, 2014 at 12:25 PM, Charlie England <flyrotary@lancaironline.net> wrote:

Well, I recently bought a used aluminum flywheel with the following description:

Quote:
RX7 8.5Lb Fidanza Aluminum Flywheel for FB or FC
For sale is a 8.5lb Aluminum Fidanza Flywheel for a RX7 Non Turbo , its used and could use a new friction plate

fits 86-91 Non turbo RX7s might fit Fb 2nd gen RX7s as well i'm not 100% sure

Unquote.

It was reasonably priced, since I don't need the wear surface, so I figured it would be 'plan B' if I ever have an issue with the flex plate.

When it arrived (yesterday, after everyone was gone), I sat it on top of my (cracked) flex plate, and it's almost an inch smaller in diameter. The mounting holes in the center seem to line up properly. I remember reading about milling the drive plate to move the starter .2" closer to the engine, but I don't remember anything about the smaller diameter.

So, my questions:
Did I purchase the wrong item, would I simply make my starter cutout in the plate closer to the centerline to account for the smaller diameter, or was the flywheel mis-represented?

If it's not the described item, I need to send it back, but I don't want to bother the seller if I simply bought the wrong flywheel.

Thanks,

Charlie


--
Homepage:  http://www.flyrotary.com/
Archive and UnSub:   http://mail.lancaironline.net:81/lists/flyrotary/List.html

 


--Apple-Mail-927D28A3-E122-45F1-82E8-3625112764DA--