X-Virus-Scanned: clean according to Sophos on Logan.com From: "Charlie England" Received: from mail-wi0-f181.google.com ([209.85.212.181] verified) by logan.com (CommuniGate Pro SMTP 6.0.9e) with ESMTPS id 6890531 for flyrotary@lancaironline.net; Wed, 21 May 2014 09:13:41 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.212.181; envelope-from=ceengland7@gmail.com Received: by mail-wi0-f181.google.com with SMTP id n15so2719469wiw.14 for ; Wed, 21 May 2014 06:13:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=V1U4M56dJLClSVeVLGDkni80ZyeIzzSaO2Tf1PIMC+k=; b=bMzZ6NjARzx4aFqXFQVyXx8HrX+T5OFd6XBu0ksJaAb7VCcrBC9x8lWuH8G06yPVoK R1KNf6BvtVR8yGUiqNEYva21YWq5G++oHT9e2ye8lsKrpor15P0JFd4tLzyZitD21zrd RHMVeRV686fX3XgPVETd30UkrZn6PIlo5k69nOAzKNLMgAnM/JVidO4KLbU9qO9cqOaX lhXk1KjZ94nTnuX0iyF1ibMWZW8yh+zshH0ofrCLKAWvdQpQOpvi2HxRDRkW1KD6Mui7 NOdbk5J0fCwFu+XHJ6PFSlURfp5Tj9rX60Z5J7bE2SKnA/KgT6jJS1/+rzX9uC3R4MEm HaLg== MIME-Version: 1.0 X-Received: by 10.180.212.48 with SMTP id nh16mr10287209wic.49.1400677984595; Wed, 21 May 2014 06:13:04 -0700 (PDT) Received: by 10.216.176.199 with HTTP; Wed, 21 May 2014 06:13:04 -0700 (PDT) In-Reply-To: References: Date: Wed, 21 May 2014 08:13:04 -0500 Message-ID: Subject: Re: [FlyRotary] Re: flexplate / flywheel saga continued To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary=001a11c35102b7733504f9e8c135 --001a11c35102b7733504f9e8c135 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable I just found a stock manual trans flywheel off a 13B non-turbo I disassembled many years ago. It's 11 3/4" dia to outside of the teeth, just like the aluminum one I just bought. The 13B flex plate (which fits the drive) is 12 5/8" diameter. While typing this on my hangar computer using (hated) gmail web interface, I saw Dave's post, which confirms what I suspected about diameters. Thanks, Dave; that saved me lots of digging. Fortunately, I don't need to change from the flexplate at the moment, but I wonder about simply milling the adapter plate to position the starter 7/16" closer to centerline...... Thanks to Kelly for the offer, but it looks like the size mystery is solved= . Charlie On Wed, May 21, 2014 at 7:35 AM, Ed Anderson w= rote: > Charlie, I have one of Lou Ross=E2=80=99s PSRUs and I was surprised whe= n > converting over to Tracy=E2=80=99s PSRU to find that the diameter of the = Ross > flywheel was 1=E2=80=9D smaller in diameter =E2=80=93 didn=E2=80=99t real= ize this until I stuck the > starter into the Tracy mount and found it=E2=80=99s drive gear was approx= 1/2=E2=80=9D away > from the teeth on the flywheel. So had to ditch it and go find a more > recent version. > > Ed > > *From:* Charlie England > *Sent:* Tuesday, May 20, 2014 9:20 PM > *To:* Rotary motors in aircraft > *Subject:* [FlyRotary] Re: flexplate / flywheel saga continued > > Hmm... this is curious. The seller says 'fits 86-91', so that should be > 2nd gen. I wonder if the turbo flywheel is larger diameter (same diameter > as the flexplate). Guess I'll call Fidanza & ask, before I contact the > seller. > > Just out of curiosity, would it be possible to just move the starter > closer to the e-shaft centerline to match the smaller flywheel? (I do hav= e > mine mounted on the plugs side of the engine). > > I don't really expect to need this flywheel, but if it's useable, I'll > hang on to it. > > Thanks for the help, > > Charlie > > On 5/20/2014 5:03 PM, Tracy wrote: > > I bought 2 aluminum racing flywheels for RX-7, one new and One used. > Both were same diameter as 2nd gen flex plate although the seller said th= ey > also fit RX-8. > > I am not familiar with the " FB or FC " terminology. I'm wondering if > they mean it is a 1st gen RX7. I would assume FC means 2nd gen since 3r= d > gen is FD. > > Tracy > > Sent from my iPad > > On May 20, 2014, at 15:25, "Charlie England" > 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 engin= e, > 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, o= r > 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 > > > No virus found in this message. > Checked by AVG - www.avg.com > Version: 2014.0.4592 / Virus Database: 3950/7529 - Release Date: 05/20/14 > --001a11c35102b7733504f9e8c135 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
I just found a stock manual trans flywheel off a 13B non-t= urbo I disassembled many years ago. It's 11 3/4" dia to outside of= the teeth, just like the aluminum one I just bought. The 13B flex plate (w= hich fits the drive) is 12 5/8" diameter.=C2=A0

While typing this on my hangar computer using (hated) gmail = web interface, I saw Dave's post, which confirms what I suspected about= diameters. =C2=A0Thanks, Dave; that saved me lots of digging.=C2=A0
<= div>
Fortunately, I don't need to change from the flexplate at th= e moment, but I wonder about simply milling the adapter plate to position t= he starter 7/16" closer to centerline......

Thanks to Kelly for the offer, but it looks like the size mystery is solved= .

Charlie

On Wed, May 21, 2014 at 7:35 AM, Ed Anders= on <flyrotary@lancaironline.net> wrote:
Charlie, I have one of Lou Ross=E2=80=99s PSRUs and I was surprised wh= en converting=20 over to Tracy=E2=80=99s PSRU to find that the diameter of the Ross flywheel= was 1=E2=80=9D=20 smaller in diameter =E2=80=93 didn=E2=80=99t realize this until I stuck the= starter into the=20 Tracy mount and found it=E2=80=99s drive gear was approx 1/2=E2=80=9D away = from the teeth on the=20 flywheel.=C2=A0 So had to ditch it and go find a more recent version.
=C2=A0
Ed
=C2=A0
Sent: Tuesday, May 20, 2014 9:20 PM
To: Rotary motors in aircraft <= /div>
Subject: [FlyRotary] Re: flexplate / flywheel saga=20 continued
=C2=A0
=
Hmm... this is curious. The seller says 'fits 86-91',=20 so that should be 2nd gen. I wonder if the turbo flywheel is larger diamete= r=20 (same diameter as the flexplate). Guess I'll call Fidanza & ask, be= fore I=20 contact the seller.

Just out of curiosity, would it be possible to j= ust=20 move the starter closer to the e-shaft centerline to match the smaller flyw= heel?=20 (I do have mine mounted on the plugs side of the engine).

I don'= t really=20 expect to need this flywheel, but if it's useable, I'll hang on to= =20 it.

Thanks for the help,

Charlie

On 5/20/2014 5:03 PM,= =20 Tracy wrote:
I bought 2 aluminum racing flywheels for RX-7, one new and One=20 used.=C2=A0=C2=A0 Both were same diameter as 2nd gen flex plate although = the=20 seller said they also fit RX-8.=C2=A0
=C2=A0
I am not familiar with the " FB or FC " terminology.=C2=A0= =C2=A0 I'm=20 wondering if they mean it is a 1st gen RX7.=C2=A0=C2=A0 I would assume FC= =20 means 2nd gen since 3rd gen is FD.
=C2=A0
Tracy

Sent from my iPad

On May 20, 2014, at 15:25, "Charlie E= ngland" <flyrotary@lancaironline.net>=20 wrote:

Well, I recently bought a used aluminum flywheel with the followin= g=20 description:

Quote:
= RX7=20 8.5Lb Fidanza Aluminum Flywheel for FB or FC
For sale is a 8.= 5lb=20 Aluminum Fidanza Flywheel for a RX7 Non Turbo , its used and could use = a new=20 friction plate=20
fits 86-91 Non turbo RX7s might fit Fb 2nd ge= n RX7s as=20 well i'm not 100% sure
Unquote.

It was reasonabl= y priced,=20 since I don't need the wear surface, so I figured it would be '= plan B' if I=20 ever have an issue with the flex plate.

When it arrived (yester= day,=20 after everyone was gone), I sat it on top of my (cracked) flex plate, a= nd=20 it's almost an inch smaller in diameter. The mounting holes in the = center=20 seem to line up properly. I remember reading about milling the drive pl= ate=20 to move the starter .2" closer to the engine, but I don't reme= mber anything=20 about the smaller diameter.

So, my questions:
Did I purchas= e the=20 wrong item, would I simply make my starter cutout in the plate closer t= o the=20 centerline to account for the smaller diameter, or was the flywheel=20 mis-represented?

If it's not the described item, I need to s= end it=20 back, but I don't want to bother the seller if I simply bought the = wrong=20 flywheel.

Thanks,

Charlie
<AL flywheel.JPG>

No virus found in this=20 message.
Checked by AVG - www.avg.com
Version: 2014.0.4592 / Virus=20 Database: 3950/7529 - Release Date: 05/20/14


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