X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from nm22.access.bullet.mail.sp2.yahoo.com ([98.139.44.149] verified) by logan.com (CommuniGate Pro SMTP 5.4.0) with SMTP id 5056238 for flyrotary@lancaironline.net; Tue, 19 Jul 2011 00:20:25 -0400 Received-SPF: none receiver=logan.com; client-ip=98.139.44.149; envelope-from=keltro@att.net Received: from [98.139.44.97] by nm22.access.bullet.mail.sp2.yahoo.com with NNFMP; 19 Jul 2011 04:19:49 -0000 Received: from [98.139.44.76] by tm2.access.bullet.mail.sp2.yahoo.com with NNFMP; 19 Jul 2011 04:19:49 -0000 Received: from [127.0.0.1] by omp1013.access.mail.sp2.yahoo.com with NNFMP; 19 Jul 2011 04:19:49 -0000 X-Yahoo-Newman-Property: ymail-3 X-Yahoo-Newman-Id: 537995.11153.bm@omp1013.access.mail.sp2.yahoo.com Received: (qmail 51336 invoked by uid 60001); 19 Jul 2011 04:19:49 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=att.net; s=s1024; t=1311049189; bh=05BtFknOSFG3Xlt/KE4/b6Md2Xpl0/MAVZQ5fyoCdUs=; h=X-YMail-OSG:Received:X-Mailer:References:Message-ID:Date:From:Reply-To:Subject:To:In-Reply-To:MIME-Version:Content-Type; b=dzxEA0APCTsED95VpV9JJCD9tXu7tqgeVSI9CmD7nHztChzC9+sZrnyrhSeSJEv+5NibsZHt7SXDwYJV1k6vMX5ghUA5TX7mNGDevXcQ+c26X8tqZkXi7Ubm103qVV4PyTdmr8JJB7t2c2L9WJBi9ijB0EGyNcNIAhyixlC7XXk= DomainKey-Signature:a=rsa-sha1; q=dns; c=nofws; s=s1024; d=att.net; h=X-YMail-OSG:Received:X-Mailer:References:Message-ID:Date:From:Reply-To:Subject:To:In-Reply-To:MIME-Version:Content-Type; b=ZuzInPgIyDL/y7KkUj4a/nqX9HNjHt92BNEqbhomRX5fDt2jMRtUQn6okA5Fcx16yS6f2qDY9ezREMdQlNSySLHfo/tG1tMlgj7uJaz2OXqYh1nLFr+TZfxNF5C3oHcrYlvZs1IgnnVc3eC9nFqCYVyazzhGz7mYEy0HaylsfCQ=; X-YMail-OSG: .YjvsYoVM1kkr4dw39BVbB6qi52JPMBJFdgr8yBvTCal_Sx PEU0MwHfGcjKHLxVmnbsh_TU_jRx5hNBlLRPvJ6GGAlnMoke.U9iDVG8LW1X 9Ei38ABcbRlRmwUUi2aPZ09tNbUJwy27EKY4eTEbq6gAUwnBpg_YAQsUYuki LdEO4PCCn448zHB6YBoKmAHpJ_IjlYJYLPTrojnrPmhyr6YxYTxAR64IDsSS e0MaLK05t3G18.5wNLmFYc6LIfaEBqbU9CVCsf2J_Y2PRoCiNL4mx0EiFsBZ Kv_1.v1Ihd19EGztTm25AHeIusVfGZDBMPIZHmTFpKo.2_Q7cSllEaFNCd24 odgpAKRx_gTrlWUfOX9b3u3FDH3i.7ypFUUg8PQkiZJBr6eNgKgxHhKHFY.5 NIE8DkrTZS4Fj4XhRe67BDpMoZAtPM6gpDwok8Dd0HwxxndAl4sVZfJlvIDm pfLr_pO.PzjgN4NpmiNOtO9JQjDGNv4hEJSh2lII3PG2wTsCnh_xwL.E1Mjd WRNjOluG.EddYble5yeRvz0XWlIYFT8iBGHJMEUt3jUtbORwln1Ho53cFR4w k.FzVjui0qguH_JRYnlBb6ZII.Et2LcaN69F1YakeXNUfZ.R4oJnh9D_VxjE rwdeDVkq8KuwMu4Wb1qBAZrbQw8XZG9HHpLLoUJ8dMz_lJVfIlABYLi6xmzF AiEIW7lPf3yk- Received: from [208.114.39.18] by web83912.mail.sp1.yahoo.com via HTTP; Mon, 18 Jul 2011 21:19:49 PDT X-Mailer: YahooMailWebService/0.8.112.307740 References: Message-ID: <1311049189.46410.YahooMailNeo@web83912.mail.sp1.yahoo.com> Date: Mon, 18 Jul 2011 21:19:49 -0700 (PDT) From: Kelly Troyer Reply-To: Kelly Troyer Subject: Ok Here are the important flywheel measurements To: Rotary motors in aircraft In-Reply-To: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="0-734272987-1311049189=:46410" --0-734272987-1311049189=:46410 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Dave,=0A=A0=A0=A0 Just got shipping update.............Turbo starter will b= e here Tuesday afternoon (tomorrow).............!!=0A=0AKelly Troyer=0A"DYK= E DELTA JD2" (Eventually)=0A"13B ROTARY"_ Engine=0A"RWS"_RD1C/EC2/EM2=0A"MI= STRAL"_Backplate/Oil Manifold=0A"TURBONETICS"_TO4E50 Turbo=0A=0AFrom: Kelly= Troyer =0ATo: Rotary motors in aircraft =0ASent: Monday, July 18, 2011 11:14 PM=0ASubject: [FlyRotary] O= k Here are the important flywheel measurements=0A=0A=0ADave,=0A=A0=0A=A0=A0= So adding the RD1X mount plate thickness 0.500 (1/2 inch)=A0we have a meas= urement of approx 2.254 inch...........Tracy=0Acalls for a 1986 NA=A0(86 to= 91 are the same) manual transmission starter.............I do=A0not know e= xactly what=A0difference=A0the =0Aturbo starter has except the turbo flywhe= el and automatic flex-plate are slightly larger in diameter and have more r= ing gear =0Ateeth=A0than the 86-91 NA manual flywheel................There = was no turbo engine offered until 1987.............I should have the=0Aturb= o starter in a few days so we can decide if it will be about 0.375 in longe= r=A0from mounting=A0flange to end of the starter =0Agear teeth when activat= ed by the solenoid..............Cross your fingers !!............<:)=A0=0A= =A0=0A=0AKelly Troyer=0A"DYKE DELTA JD2" (Eventually)=0A"13B ROTARY"_ Engin= e=0A"RWS"_RD1C/EC2/EM2=0A"MISTRAL"_Backplate/Oil Manifold=0A"TURBONETICS"_T= O4E50 Turbo=0A=0AFrom: David Leonard =0ATo: Rotary mot= ors in aircraft =0ASent: Monday, July 18, 2011= 9:34 PM=0ASubject: [FlyRotary] Re: Ok Here are the important flywheel meas= urements=0A=0A=0AKelly, here is the starter measurement. This is the starte= r that Tracy recommends, I forget which one that is. =A0From the engine sid= e of the mounting flange, to the far end of the tear tooth, I measure 1.754= - give or take. =0A=0A--=A0=0ADavid Leonard=0A=0ATurbo Rotary RV-6 N4VY=0A= http://N4VY.RotaryRoster.net=0Ahttp://RotaryRoster.net=0A=0A=0AOn Mon, Jul = 18, 2011 at 6:16 PM, Kelly Troyer wrote:=0A=0ADave,=0A>=A0= =A0 While they are at it have them turn the pressure plate surface down to = the pressure plate mounting=0A>level so all of the rubber osolator is on a = flat surface without a 0.018 step at the outer edge.......Or=0A>you could p= ut a washer under the drive plate (like the top washer)............But this= would put the drive=0A>plate further forward on the input shaft splines th= e thickness of the washer..........I do not khow if this=0A>would pose a pr= oblem or not...........=0A>=0A>Kelly Troyer=0A>"DYKE DELTA JD2" (Eventually= )=0A>"13B ROTARY"_ Engine=0A>"RWS"_RD1C/EC2/EM2=0A>"MISTRAL"_Backplate/Oil = Manifold=0A>"TURBONETICS"_TO4E50 Turbo=0A>=0A>=0A>From: David Leonard =0A>To: Rotary motors in aircraft =0A>Sent: Monday, July 18, 2011 7:55 PM=0A>Subject: [FlyRotary] Re: Ok = Here are the important flywheel measurements=0A>=0A>=0A>Well,=A0 NOW you te= ll me...=A0 :-)=A0=A0 Yea, that was going to be an issues reguardless of wh= ich solution we chose.=A0 I think I will bring mine to a machine shop and l= et them figure it out=A0 :-)=0A>=0A>-- =0A>David Leonard=0A>=0A>Turbo Rotar= y RV-6 N4VY=0A>http://N4VY.RotaryRoster.net=0A>http://RotaryRoster.net=0A>= =0A>=0A>=0A>On Mon, Jul 18, 2011 at 4:49 PM, Kelly Troyer = wrote:=0A>=0A>Dave,=0A>>=A0=0A>>=A0=A0 Forgot to add that there are 3 clutc= h pressure plate locating dowels in the flywheel.........You=0A>>will have = to knock these out with a punch as their position will not let you properly= center the =0A>>RD1X drive plate and will not let the drive plate "Float" = properly..............I have not come up =0A>>with a method yet to center t= he drive plate with the absolute accuracy needed=A0for drilling the=0A>>fly= wheel for the drive plate attach bolts...........Maybe some of the group wi= th more=A0machinists=0A>>skills than I can make a recommendation=A0!!......= ............Also the rear of the attach bolt holes=0A>>will need to be spot= faced to provide a flat surface for the bolt head or nut and washer=A0 from= =0A>>what I have observed on the backside of my flywheel...................= .....<:)=A0=A0=0A>>=0A>>Kelly Troyer=0A>>"DYKE DELTA JD2" (Eventually)=0A>>= "13B ROTARY"_ Engine=0A>>"RWS"_RD1C/EC2/EM2=0A>>"MISTRAL"_Backplate/Oil Man= ifold=0A>>"TURBONETICS"_TO4E50 Turbo=0A>>=0A>>=0A>>From: Kelly Troyer =0A>>To: Rotary motors in aircraft = =0A>>Sent: Monday, July 18, 2011 6:29 PM=0A>>Subject: [FlyRotary] Ok Here a= re the important flywheel measurements=0A>>=0A>>=0A>>Dave,=0A>>=A0=A0 The l= ink attached shows the prolite version (9.8 lbs) on the left in the photo..= ...........Do you have=A0your starter flange=0A>>to gear measurement=A0hand= y as my RD1X starter=A0(not the turbo model)=A0is 55 miles away at the mome= nt...........=A0=0A>>=A0http://www2.advancedclutch.com/products/xact_flywhe= els.aspx=0A>>=0A>>Kelly Troyer=0A>>"DYKE DELTA JD2" (Eventually)=0A>>"13B R= OTARY"_ Engine=0A>>"RWS"_RD1C/EC2/EM2=0A>>"MISTRAL"_Backplate/Oil Manifold= =0A>>"TURBONETICS"_TO4E50 Turbo=0A>>=0A>>=0A>>From: David Leonard =0A>>To: Rotary motors in aircraft =0A>>Sent: Monday, July 18, 2011 6:18 PM=0A>>Subject: [FlyRotary] Re: Ok H= ere are the important flywheel measurements=0A>>=0A>>=0A>>OK Kelly,=0A>>=0A= >>Thanks to all your hard work and research, I have ordered up the Prolite = 9.8 lb version of this.=A0 Decided that I was done with the flex plates.=A0= Thanks for locating a great price.=A0 I am a little nervous that the pictu= re does not look right, but I guess I can always return it.=0A>>Like you, I= figure we will solve the starter issue one way or another.=0A>>=0A>>-- =0A= >>David Leonard=0A>>=0A>>Turbo Rotary RV-6 N4VY=0A>>http://N4VY.RotaryRoste= r.net=0A>>http://RotaryRoster.net=0A>>=0A>>=0A>>=0A>>On Sat, Jul 16, 2011 a= t 2:21 PM, Kelly Troyer wrote:=0A>>=0A>>Dave and All,=0A>>= >=A0=0A>>>=A0=A0=A0=A0=A0=A0=A0=A0=A0 Ok Dave the "ACT" "Streetlite" 13.8 l= b flywheel was just delivered and I am in process of taking=0A>>>your measu= rements to see where we stand................This flywheel is a thing of be= auty (to a RotorHead)=0A>>>and my RD1C drive plate will bolt to it with no = problem (through drill and spotface the rear of the flywheel=0A>>>because i= t has a slight taper in that area).............I just have to verify just w= here the RD1C drive splines =0A>>>will be positioned (fore and aft) on the = input shaft compared to the RX7 flexplate.............The clutch plate=0A>>= >friction area is slightly raised (about 0.065) above the clutch mount area= and I would probably take it=0A>>>down tto the clutch level (probably not = necessary but would reduce weight slightly.............I have a 93-95=0A>>>= Turbo starter on the way (should take care of starter mesh problem)........= ......If you are interested I can=0A>>>guide you to another 93-95 starter (= used $49.00 with/shipping) if it is still for sale.............=0A>>>=A0=A0= =A0=A0=A0=A0=A0 One other thing at this time..............The lighter 9.8 l= b version may be usable but it is listed as 116=0A>>>ring gear teeth and I = have not found out what its diameter is and what starter would be used with= it......=0A>>>=A0=A0=A0=A0=A0=A0=A0 I suspect it may be the diameter of th= e NA 13B flywheels and may use the 86-91=A0NA manual trans=0A>>>starter....= ........You need to talk to the manufacturer..........They are in Lancaster= , Calif............The 9.8 lb=0A>>>version is a little more expensive due t= o more extensive machine work to reduce weight.............See the=0A>>>lin= k below............The link to THMotorsports has the best price I have foun= d on the 9.8 lb flywheel......The=0A>>>photo on their page is not the Rotar= y 9.8 lb version...........=A0=0A>>>=A0=0A>>>http://www2.advancedclutch.com= /products/xact_flywheels.aspx=0A>>>=A0=0A>>>=A0=0A>>>http://thmotorsports.c= om/act/act_flywheel_prolite/600140/i-47718.aspx=0A>>>=0A>>>Kelly Troyer=0A>= >>"DYKE DELTA JD2" (Eventually)=0A>>>"13B ROTARY"_ Engine=0A>>>"RWS"_RD1C/E= C2/EM2=0A>>>"MISTRAL"_Backplate/Oil Manifold=0A>>>"TURBONETICS"_TO4E50 Turb= o=0A>>>=0A>>>=0A>>>From: Kelly Troyer =0A>>>To: Rotary moto= rs in aircraft =0A>>>Sent: Friday, July 15, 20= 11 12:34 PM=0A>>>Subject: [FlyRotary] Re: Ok Here are the important flywhee= l measurements=0A>>>=0A>>>=0A>>>Dave and All,=0A>>>=A0=0A>>>=A0=A0=A0=A0=A0= =A0=A0=A0 Sounds encourageing...............Replacing the starter with turb= o model would seem to be=0A>>>least expensive and safer than adding additio= nal ring gear + welding..............I also echo what=0A>>>Bill and Bobby h= ave said concerning the Al Wick fix and getting Tracy's thoughts about caus= e=0A>>>of problem and perhaps need for periodic inspection and/or rubber=A0= isolator replacement........=A0=0A>>>=0A>>>Kelly Troyer=0A>>>"DYKE DELTA JD= 2" (Eventually)=0A>>>"13B ROTARY"_ Engine=0A>>>"RWS"_RD1C/EC2/EM2=0A>>>"MIS= TRAL"_Backplate/Oil Manifold=0A>>>"TURBONETICS"_TO4E50 Turbo=0A>>>=0A>>>=0A= >>>From: David Leonard =0A>>>To: Rotary motors in airc= raft =0A>>>Sent: Thursday, July 14, 2011 11:41= PM=0A>>>Subject: [FlyRotary] Ok Here are the important flywheel measuremen= ts=0A>>>=0A>>>=0A>>>I finally got to the hangar and measured out my S5 turb= o flywheel and the remains of my S5 flexplate.=A0 The results are very enco= uraging, even as good as the possibly could be to make the swap, but I only= had ten min at the hangar before I had to leave to pick up my daughter fro= m daycare, so they are one try and slightly sloppy... I make no guarantees.= =A0 The height measurements of the flex plate were particularly suspect bec= ause, well, mine is all warped and broken.=0A>>>=0A>>>Ring Gear Diameter - = Perfect fit.=A0 As we suspected, same size, same tooth spacing.=0A>>>=0A>>>= Ring Gear Fore-Aft Placement - As measured from the underside of the big nu= t. (for all further reference, aft means aft in the CAR).=A0 The flex plate= puts the aft side of the ring gear 1.290 inches from the front of the big = nut. The flywheel puts it 0.913.=A0 So the flex plate puts the ring gear (a= ppx) 0.377 in. further aft.=A0 This is actually fortuitous because it just = so happens that the ring gear thickness is .365 ...=A0=A0=A0 So all we have= to do to fix the discrepancy is weld and extra ring gears onto to the flyw= heel ring gear and there will be teeth that the starter can reach:(bottom o= f the page.. the cost $80)=0A>>>http://mazdatrix.com/flywheel.htm=0A>>>It m= ay also be possible to fix the discrepancy by changing the starter... will = look into that.=0A>>>=0A>>>Damper Plate Placement - On the flywheel, the mo= unting surface is proud (or aft) of the ring gear.=A0 On the flex plate, th= e mounting surface is recessed (or forward) from the ring gear. A=0A>>>nd i= t all pretty much works out.=A0 That position on the flywheel will vary som= ewhat depending on which flywheel you have and how much wear you have on th= e clutch slip surface. But on my (I assume well-worn) flywheel the placemen= t was 0.965 while the flex plate was 0.950.=A0 Pretty damn close and given = measurement error it might me meant to be right on.=A0 Or, any difference c= ould be made up by trimming down the spline on the damper plate or removing= or adding spacers between the two.=0A>>>=0A>>>So in my mind, a flywheel is= the way to go.=A0 Stout, easy to get, pick your weight, only mods seem to = be drilling the mounting holes and welding on a second gear ring.=0A>>>=0A>= >>-- =0A>>>David Leonard=0A>>>=0A>>>Turbo Rotary RV-6 N4VY=0A>>>http://N4VY= .RotaryRoster.net=0A>>>http://RotaryRoster.net=0A>>>=0A>>>=0A>>>=0A>>>=0A>>= >=0A>>=0A>>=0A>>=0A>>=0A>>=0A>>=0A>>=0A>=0A>=0A>=0A>=0A> --0-734272987-1311049189=:46410 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable
Dave,
    J= ust got shipping update.............Turbo starter will be here Tuesday afte= rnoon (tomorrow).............!!
 
Kelly Troyer
"DYKE DELTA JD2" (Eventually)
"13B ROTARY"_ Engine
"RWS"_RD1C/EC2/EM2
"MISTRAL"_Backplate/Oil = Manifold
"TURBONETICS"_TO4E50 Turbo

From:= Kelly Troyer <keltro@att.net>
To: Rotary motors in aircraft <flyrotary@lancair= online.net>
Sent: Mon= day, July 18, 2011 11:14 PM
Subject= : [FlyRotary] Ok Here are the important flywheel measurements
Dave,
 
   So adding the RD1X mount plate thickness 0.500 (1/2= inch) we have a measurement of approx 2.254 inch...........Tracy
calls for a 1986 NA (86 to 91 are the same) manual transmis= sion starter.............I do not know exactly what difference&nb= sp;the
turbo starter has except the turbo flywheel and automatic flex-plate are slightly larger in diameter and have more rin= g gear
teeth than the 86-91 NA manual flywheel................Ther= e was no turbo engine offered until= 1987.............I should have the
turbo starter in a few days so we can decide if it will be about= 0.375 in longer from mounting flange to end of the starter
gear teeth when activated by the solenoid..........= ....Cross your fingers !!............<:) 
 
 
Kelly Troyer
"DYKE DELTA JD2" (Event= ually)
"13B ROTARY"_ Engine
"RWS"_RD1C/EC2/EM2
"MISTRAL"_Backplate/Oil Manifold
"TURBONETIC= S"_TO4E50 Turbo

From: David Leonard <wd= leonard@gmail.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Monday, July 18, 2011 9:34 PM=
Subject: [FlyRotary] Re= : Ok Here= are the important flywheel measurements

Kelly, here is the starter measurement. This is the = starter that Tracy recommends, I forget which one that is.  From the e= ngine side of the mounting flange, to the far end of the tear tooth, I meas= ure 1.754 - give or take.=20

-- 
David Leonard

Turbo Rotary RV-6 N4VY
http://N4VY.RotaryRost= er.net
http://RotaryRoster.net

On Mon, Jul 18, 2011 at 6:16 PM, Kelly= Troyer <keltro@att.net><= /SPAN> wrote:
Dave,
   While they are at it have them turn the pressure pl= ate surface down to the pressure plate mounting
level so all of the rubber osolator is on a flat surface without a 0.018= step at the outer edge.......Or
you could put a washer under the drive plate (like the top washe= r)............But this would put the drive
plate further forward on the input shaft splines the thickness o= f the washer..........I do not khow if this
woul= d pose a problem or not...........
 
Kelly Troyer
"DYKE DELTA JD2" (Even= tually)
"13B ROTARY"_ Engine
"RWS"_RD1C/EC2/EM2
"MISTRAL"_Backplate/Oil Manifold
"TURBONETI= CS"_TO4E50 Turbo

From: David Leonard <wdleonard@gmail.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Monday, July 18, 2011 7:55 PMSubject: [FlyRotary] Re: = Ok Here = are the important flywheel measurements

Well,  NOW you tell me...  :-)   Yea, that was goi= ng to be an issues reguardless of which solution we chose.  I think I will bri= ng mine to a machine shop and let them figure it out  :-)
 
--
David Leonard

Turbo Rotary RV-6 N4VY
http://N4VY.RotaryRoster.n= et
http://RotaryRoster.net


On Mon, Jul 18, 2011 at 4:49 PM, Kelly Troyer <keltro@att.net> wrote:
Dave,
 
   Forgot to add that there are 3 clutch pressure plat= e locating dowels in the flywheel.........You
will have to knock these out with a punch as their position will= not let you properly center the
RD1X drive plate and will not let the drive plate "Float" proper= ly..............I have not come up
with a method yet to center the drive plate with the absolute ac= curacy needed for drilling the
flywheel for the drive plate attach bolts...........Maybe some o= f the group with more machinists
skills than I can make a recommendation !!.....= .............Also the rear of the attach bolt holes
will need to be spotfaced to provide a flat sur= face for the bolt head or nut and washer  from
what I have observed on the backside of my flywheel.= .......................<:)  
 
Kelly Troyer
"DYKE DELTA JD2" (Eventually)
"13B ROTARY"_ Engine
"RWS"_RD1C/EC2/EM2
"MISTR= AL"_Backplate/Oil Manifold
"TURBONETICS"_TO4E50 Turbo

From: Kelly Troyer <keltro@att.net>
To:= Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Monday, July 18, 2011 6:29 PM
Subject: [FlyRotary] Ok= Here are the important flywheel measurements

Dave,
   The link attached shows the prolite version (9.8 lbs) on the left in the photo.............Do you have = your starter flange
to gear measurement handy as my RD1X starter (not the = turbo model) is 55 miles away at the moment........... = ;
 
 
Kelly Troyer
"DYKE DELTA JD2" (Eventually)
"13B ROTARY"_ Engine
"RWS"_RD1C/EC2/EM2
"MISTR= AL"_Backplate/Oil Manifold
"TURBONETICS"_TO4E50 Turbo

From: David Leonard <wdleonard@gmail.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Monday, July 18, 2011 6:18 PMSubject: [FlyRotary] Re: = Ok<= /SPAN> Here are the important flywheel measurements

OK Kelly,
 
Thanks to all your hard work and research, I have ordered up the Prolite<= /SPAN> 9.8 lb version of this.  Decided that I was done = with the flex plates.  Thanks for locating a great price.  I am a= little nervous that the picture does not look right, but I guess I can alw= ays return it.
Like you, I figure we will solve the starter issue one way or another.=
 
--
David Leonard

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


On Sat, Jul 16, 2011 at 2:21 PM, Kelly Troyer <keltro@att.net> wrote:
Dave and All,
 
          Ok Dave the "ACT" "Streetlite" 13.8 lb flywheel = was just delivered and I am in process of taking
your measurements to see where we stand................This flyw= heel is a thing of beauty (to a RotorHead)
and my RD1C drive plate will bolt to it with no problem (through= drill and spotface the rear of the flywheel
because it has a slight taper in that area).............I just h= ave to verify just where the RD1C drive splines
will be positioned (fore and aft) on the input shaft compared to= the RX7 flexplate.............The clutch plate
friction area is slightly raised (about 0.065) above the clutch = mount area and I would probably take it
down tto the clutch level (probably not necess= ary but would reduce weight slightly.............I have a 93-95
Turbo starter on the way (should take care of starter mesh probl= em)..............If you are interested I can
guide you to another 93-95 starter (used $49.00 with/shipping) i= f it is still for sale.............
        One other thing at th= is time..............The lighter 9.8 lb version may be usable but it is lis= ted as 116
ring gear teeth and I have not found out what its diameter is an= d what starter would be used with it......
        I suspect it may be t= he diameter of the NA 13B flywheels and may use the 86-91 NA manual tr= ans
starter............You need to talk to the manufacturer.........= .They are in Lancaster, Calif............The 9.8 lb
version is a little more expensive due to more extensive machine= work to reduce weight.............See the
link below............The link to THMotorsports has the best price I have found on the 9.8 lb flywheel......Th= e
photo on their page is not the Rotary 9.8 lb version...........&= nbsp;
 
 
 
 
Kelly Troyer
"DYKE DELTA JD2" (Eventually)
"13B ROTARY"_ Engine
"RWS"_RD1C/EC2/EM2
"MISTR= AL"_Backplate/Oil Manifold
"TURBONETICS"_TO4E50 Turbo

From: Kelly Troyer <keltro@att.net>
To:= Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Friday, July 15, 2011 12:34 PM
Subject: [FlyRotary] Re: Ok Here are the important flywheel measurements

Dave and All,
 
         Sounds encouragein= g...............Replacing the starter with turbo model= would seem to be
least expensive and safer than adding additional ring gear + wel= ding..............I also echo what
Bill and Bobby have said concerning the Al Wick fix and getting = Tracy's thoughts about cause
of problem and perhaps need for periodic inspection and/or rubbe= r isolator replacement........ 
 
Kelly Troyer
"DYKE DELTA JD2" (Eventually)
"13B ROTARY"_ Engine
"RWS"_RD1C/EC2/EM2
"MISTR= AL"_Backplate/Oil Manifold
"TURBONETICS"_TO4E50 Turbo

From: David Leonard <wdleonard@gmail.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Thursday, July 14, 2011 11:41 P= M
Subject: [FlyRotary] <= SPAN>Ok Here are the important flywheel measurements

I finally got to the hangar and measured out my S5 turbo flywheel and = the remains of my S5 flexplate.  The results are v= ery encouraging, even as good as the possibly could be to make the swap, bu= t I only had ten min at the hangar before I had to leave to pick up my daug= hter from daycare, so they are one try and slightly sloppy... I make no gua= rantees.  The height measurements of the flex plate were particularly = suspect because, well, mine is all warped and broken.

Ring Gear D= iameter - Perfect fit.  As we suspected, same size, same tooth spa= cing.

Ring Gear Fore-Aft Placement - As measured from the und= erside of the big nut. (for all further reference, aft means aft in the CAR= ).  The flex plate puts the aft side of the ring gear 1.290 inches fro= m the front of the big nut. The flywheel puts it 0.913.  So the flex plate puts the ring gear (appx) 0.377 in. further aft.&n= bsp; This is actually fortuitous because it just so happens that the ring g= ear thickness is .365 ...    So all we have to do to fix the= discrepancy is weld and extra ring gears onto to the flywheel ring gear an= d there will be teeth that the starter can reach:(bottom of the page.. the = cost $80)
http://mazdatrix.com/flywheel.htm
It may also be poss= ible to fix the discrepancy by changing the starter... will look into that.=

Damper Plate Placement - On the flywheel, the mounting surfa= ce is proud (or aft) of the ring gear.  On the flex plate, the mountin= g surface is recessed (or forward) from the ring gear. A
nd = it all pretty much works out.  That position on the flywheel will vary= somewhat depending on which flywheel you have and how much wear you have o= n the clutch slip surface. But on my (I assume well-worn) flywheel the plac= ement was 0.965 while the flex plate was 0.950.  Pretty damn close and= given measurement error it might me meant to be right on.  Or, any di= fference could be made up by trimming down the spline on the damper plate o= r removing or adding spacers between the two.

So in my mind, a flywh= eel is the way to go.  Stout, easy to get, pick your weight, only mods= seem to be drilling the mounting holes and welding on a second gear ring.<= BR>
--
David Leonard

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























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