X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from nm3.access.bullet.mail.sp2.yahoo.com ([98.139.44.130] verified) by logan.com (CommuniGate Pro SMTP 5.4.0) with SMTP id 5056284 for flyrotary@lancaironline.net; Tue, 19 Jul 2011 02:04:53 -0400 Received-SPF: none receiver=logan.com; client-ip=98.139.44.130; envelope-from=keltro@att.net Received: from [98.139.44.99] by nm3.access.bullet.mail.sp2.yahoo.com with NNFMP; 19 Jul 2011 06:04:17 -0000 Received: from [98.139.44.69] by tm4.access.bullet.mail.sp2.yahoo.com with NNFMP; 19 Jul 2011 06:04:17 -0000 Received: from [127.0.0.1] by omp1006.access.mail.sp2.yahoo.com with NNFMP; 19 Jul 2011 06:04:17 -0000 X-Yahoo-Newman-Property: ymail-3 X-Yahoo-Newman-Id: 825193.11030.bm@omp1006.access.mail.sp2.yahoo.com Received: (qmail 47512 invoked by uid 60001); 19 Jul 2011 06:04:17 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=att.net; s=s1024; t=1311055457; bh=i7seOOE2qcWCxfokYpgaHclrpbrvlamL1wE/bAzI4XQ=; h=X-YMail-OSG:Received:X-Mailer:References:Message-ID:Date:From:Reply-To:Subject:To:In-Reply-To:MIME-Version:Content-Type; b=jqbzIYqoYP6u+fd5MgeYGGH2KZGunAE/Sd4GunNsubGwFbH2v9Lsv2ipPit2ySOh4tbRnif3xjDVfY+rkgqulHV2cUpq0x2FKnGKyFx2bZZEWVMjWPsGQCfVJc7F4CXvrjBrp3ARIDKm2NZe7a2qi7LEFRYWiCppQ4RHlD4uNdk= 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=3aoDywrkkFTbUFK1m24o0CF+3qGAwCWiiPr9Ef+BQWdGo1/vQO969OpMSTJyyyiRTh0ivecG0eM80tUy3OkOPESkJf9LWN1WugmZw9GEgo181XuZYrz9gDdkN17/74uciwFGyq7VKZ+7i5gNZEgEvBcKurIuJLX5KmcqlhPZp2A=; X-YMail-OSG: u7.4r9UVM1lihDgYgtnBCcJpEWE0Ygcf1P_lVXaCJKSQBJT bB.lpSwD.dcoFk0oznUwFc_yqrcMY8wUgGKMIiOm.YcWs8mKfdUvQZBwFg6k 4ja94meOvjwqfajD0VwYdCIib2xhicH8hUoYLoSm0WrwJrVrTBWj8Kb3qqz_ VAjMxdojNWEd5CMhUXRx4B3IQRUq9cDoXZ.3RAKBRsWodoKeWDSQkBYhoVMI CVj2wfkDK6MO11UztM4AAv1wNKhi2XCoRfBsPdo6nU7zMGsEzvh1kgmJq5ak esAkrNvyP0LNz1IzRrjpaBRl1kuDuxid7lH2UKqtqNuQ6u836hNAsKr1rW_x p.8oKSxVIAHcNU0N6rA57xgqlF3JBvNnldxDAVgA5xrC6VdqoQgHM3kmnSdx iL8UAk_1cw71vrP042lEQsbbJrVxeY.STF6P.1h.4OfrR8jTUIvdZEShhzGh 7dyT2ziVYfmsdYrsHNwOerzc33GvbJmE.Dg.LAuOvNaOSWCB0Dr3p_rkEiKq edIH2QGzhz9bzmsMcdLu9_8WeziXzmQ3tVuQT1QtDcmz39VEEI9g1fjz03sE RlzZ3P_Z1A8rq_a3hv7kxh0Ez1vRxJDQSkrA5zpyf63BGr7rUQOYX8VUCP2A 6TlG.BGzUZboD03IFPwIjgVLpVenrJr4KNNZoKkONV32DPNkHyyEUxIKsgkQ Jx8cbNE1N9xA- Received: from [208.114.47.219] by web83915.mail.sp1.yahoo.com via HTTP; Mon, 18 Jul 2011 23:04:17 PDT X-Mailer: YahooMailWebService/0.8.112.307740 References: Message-ID: <1311055457.96717.YahooMailNeo@web83915.mail.sp1.yahoo.com> Date: Mon, 18 Jul 2011 23:04:17 -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="0-309188941-1311055457=:96717" --0-309188941-1311055457=:96717 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Dave,=0A=A0=A0 Got you............I thought when you said "Engine side of t= he mounting flange you meant Tracy's plate.............Approx 1.754 it is != !.............=0A=0AKelly Troyer=0A"DYKE DELTA JD2" (Eventually)=0A"13B ROT= ARY"_ Engine=0A"RWS"_RD1C/EC2/EM2=0A"MISTRAL"_Backplate/Oil Manifold=0A"TUR= BONETICS"_TO4E50 Turbo=0A=0AFrom: David Leonard =0ATo:= Rotary motors in aircraft =0ASent: Monday, Ju= ly 18, 2011 11:28 PM=0ASubject: [FlyRotary] Re: Ok Here are the important f= lywheel measurements=0A=0A=0AHi Kelly, =0AI already took Tracys plate into = account. (I measured it at .520 in). =A0So it was 1.234 plus the .520 for t= he plate. =A0For ease, I measured when the solenoid was NOT activated. =A0C= rossing fingers, but ready to mill the plate and starter.... eh, I mean, hi= re someone to do it :-)=0A=0ADavid=0A=0A=0AOn Mon, Jul 18, 2011 at 9:14 PM,= Kelly Troyer wrote:=0A=0ADave,=0A>=A0=0A>=A0=A0 So adding= the RD1X mount plate thickness 0.500 (1/2 inch)=A0we have a measurement of= approx 2.254 inch...........Tracy=0A>calls for a 1986 NA=A0(86 to 91 are t= he same) manual transmission starter.............I do=A0not know exactly wh= at=A0difference=A0the =0A>turbo starter has except the turbo flywheel and a= utomatic flex-plate are slightly larger in diameter and have more ring gear= =0A>teeth=A0than the 86-91 NA manual flywheel................There was no = turbo engine offered until 1987.............I should have the=0A>turbo star= ter in a few days so we can decide if it will be about 0.375 in longer=A0fr= om mounting=A0flange to end of the starter =0A>gear teeth when activated by= the solenoid..............Cross your fingers !!............<:)=A0=0A>=A0= =0A>=0A>Kelly Troyer=0A>"DYKE DELTA JD2" (Eventually)=0A>"13B ROTARY"_ Engi= ne=0A>"RWS"_RD1C/EC2/EM2=0A>"MISTRAL"_Backplate/Oil Manifold=0A>"TURBONETIC= S"_TO4E50 Turbo=0A>=0A>=0A>From: David Leonard =0A>To:= Rotary motors in aircraft =0A>Sent: Monday, J= uly 18, 2011 9:34 PM=0A>Subject: [FlyRotary] Re: Ok Here are the important = flywheel measurements=0A>=0A>=0A>Kelly, here is the starter measurement. Th= is is the starter that Tracy recommends, I forget which one that is. =A0Fro= m the engine side of the mounting flange, to the far end of the tear tooth,= I measure 1.754 - give or take. =0A>=0A>=0A>--=A0=0A>David Leonard=0A>=0A>= Turbo Rotary RV-6 N4VY=0A>http://N4VY.RotaryRoster.net=0A>http://RotaryRost= er.net=0A>=0A>=0A>On Mon, Jul 18, 2011 at 6:16 PM, Kelly Troyer wrote:=0A>=0A>Dave,=0A>>=A0=A0 While they are at it have them turn th= e pressure plate surface down to the pressure plate mounting=0A>>level so a= ll of the rubber osolator is on a flat surface without a 0.018 step at the = outer edge.......Or=0A>>you could put a washer under the drive plate (like = the top washer)............But this would put the drive=0A>>plate further f= orward on the input shaft splines the thickness of the washer..........I do= not khow if this=0A>>would pose a problem 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"_TO4E5= 0 Turbo=0A>>=0A>>=0A>>From: David Leonard =0A>>To: Rot= ary motors in aircraft =0A>>Sent: Monday, July= 18, 2011 7:55 PM=0A>>Subject: [FlyRotary] Re: Ok Here are the important fl= ywheel measurements=0A>>=0A>>=0A>>Well,=A0 NOW you tell me...=A0 :-)=A0=A0 = Yea, that was going to be an issues reguardless of which solution we chose.= =A0 I think I will bring mine to a machine shop and let them figure it out= =A0 :-)=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>= >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 clutch press= ure plate locating dowels in the flywheel.........You=0A>>>will have to kno= ck these out with a punch as their position will not let you properly cente= r the =0A>>>RD1X drive plate and will not let the drive plate "Float" prope= rly..............I have not come up =0A>>>with a method yet to center the d= rive plate with the absolute accuracy needed=A0for drilling the=0A>>>flywhe= el for the drive plate attach bolts...........Maybe some of the group with = more=A0machinists=0A>>>skills than I can make a recommendation=A0!!........= ..........Also the rear of the attach bolt holes=0A>>>will need to be spotf= aced 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 Manifold=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: [FlyRo= tary] Ok Here are the important flywheel measurements=0A>>>=0A>>>=0A>>>Dave= ,=0A>>>=A0=A0 The link attached shows the prolite version (9.8 lbs) on the = left in the photo.............Do you have=A0your starter flange=0A>>>to gea= r measurement=A0handy as my RD1X starter=A0(not the turbo model)=A0is 55 mi= les away at the moment...........=A0=0A>>>=A0http://www2.advancedclutch.com= /products/xact_flywheels.aspx=0A>>>=0A>>>Kelly Troyer=0A>>>"DYKE DELTA JD2"= (Eventually)=0A>>>"13B ROTARY"_ Engine=0A>>>"RWS"_RD1C/EC2/EM2=0A>>>"MISTR= AL"_Backplate/Oil Manifold=0A>>>"TURBONETICS"_TO4E50 Turbo=0A>>>=0A>>>=0A>>= >From: David Leonard =0A>>>To: Rotary motors in aircra= ft =0A>>>Sent: Monday, July 18, 2011 6:18 PM= =0A>>>Subject: [FlyRotary] Re: Ok Here are the important flywheel measureme= nts=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 picture 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>>>Turb= o Rotary RV-6 N4VY=0A>>>http://N4VY.RotaryRoster.net=0A>>>http://RotaryRost= er.net=0A>>>=0A>>>=0A>>>=0A>>>On Sat, Jul 16, 2011 at 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 lb flywheel was just= delivered and I am in process of taking=0A>>>>your measurements to see whe= re we stand................This flywheel is a thing of beauty (to a RotorHe= ad)=0A>>>>and my RD1C drive plate will bolt to it with no problem (through = drill and spotface the rear of the flywheel=0A>>>>because it has a slight t= aper in that area).............I just have to verify just where the RD1C dr= ive splines =0A>>>>will be positioned (fore and aft) on the input shaft com= pared to the RX7 flexplate.............The clutch plate=0A>>>>friction area= is slightly raised (about 0.065) above the clutch mount area and I would p= robably take it=0A>>>>down tto the clutch level (probably not necessary but= would reduce weight slightly.............I have a 93-95=0A>>>>Turbo starte= r 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 lb 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 the NA 13= B flywheels and may use the 86-91=A0NA manual trans=0A>>>>starter..........= ..You need to talk to the manufacturer..........They are in Lancaster, Cali= f............The 9.8 lb=0A>>>>version is a little more expensive due to mor= e extensive machine work to reduce weight.............See the=0A>>>>link be= low............The link to THMotorsports has the best price I have found on= the 9.8 lb flywheel......The=0A>>>>photo on their page is not the Rotary 9= .8 lb version...........=A0=0A>>>>=A0=0A>>>>http://www2.advancedclutch.com/= products/xact_flywheels.aspx=0A>>>>=A0=0A>>>>=A0=0A>>>>http://thmotorsports= .com/act/act_flywheel_prolite/600140/i-47718.aspx=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"_TO= 4E50 Turbo=0A>>>>=0A>>>>=0A>>>>From: Kelly Troyer =0A>>>>To= : Rotary motors in aircraft =0A>>>>Sent: Frida= y, July 15, 2011 12:34 PM=0A>>>>Subject: [FlyRotary] Re: Ok Here are the im= portant flywheel measurements=0A>>>>=0A>>>>=0A>>>>Dave and All,=0A>>>>=A0= =0A>>>>=A0=A0=A0=A0=A0=A0=A0=A0 Sounds encourageing...............Replacing= the starter with turbo model would seem to be=0A>>>>least expensive and sa= fer than adding additional ring gear + welding..............I also echo wha= t=0A>>>>Bill and Bobby have said concerning the Al Wick fix and getting Tra= cy's thoughts about cause=0A>>>>of problem and perhaps need for periodic in= spection and/or rubber=A0isolator replacement........=A0=0A>>>>=0A>>>>Kelly= Troyer=0A>>>>"DYKE DELTA JD2" (Eventually)=0A>>>>"13B ROTARY"_ Engine=0A>>= >>"RWS"_RD1C/EC2/EM2=0A>>>>"MISTRAL"_Backplate/Oil Manifold=0A>>>>"TURBONET= ICS"_TO4E50 Turbo=0A>>>>=0A>>>>=0A>>>>From: David Leonard =0A>>>>To: Rotary motors in aircraft =0A>>= >>Sent: Thursday, July 14, 2011 11:41 PM=0A>>>>Subject: [FlyRotary] Ok Here= are the important flywheel measurements=0A>>>>=0A>>>>=0A>>>>I finally got = to the hangar and measured out my S5 turbo flywheel and the remains of my S= 5 flexplate.=A0 The results are very encouraging, even as good as the possi= bly 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 from daycare, so they are one try and= slightly sloppy... I make no guarantees.=A0 The height measurements of the= flex plate were particularly suspect because, 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 nut. (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 0.91= 3.=A0 So the flex plate puts the ring gear (appx) 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 flywheel ring gear and there will = be teeth that the starter can reach:(bottom of the page.. the cost $80)=0A>= >>>http://mazdatrix.com/flywheel.htm=0A>>>>It may also be possible to fix t= he discrepancy by changing the starter... will look into that.=0A>>>>=0A>>>= >Damper Plate Placement - On the flywheel, the mounting surface is proud (o= r aft) of the ring gear.=A0 On the flex plate, the mounting surface is rece= ssed (or forward) from the ring gear. A=0A>>>>nd it all pretty much works o= ut.=A0 That position on the flywheel will vary somewhat depending on which = flywheel you have and how much wear you have on the clutch slip surface. Bu= t on my (I assume well-worn) flywheel the placement was 0.965 while the fle= x plate was 0.950.=A0 Pretty damn close and given measurement error it migh= t me meant to be right on.=A0 Or, any difference could be made up by trimmi= ng down the spline on the damper plate or removing or adding spacers betwee= n the two.=0A>>>>=0A>>>>So in my mind, a flywheel is the way to go.=A0 Stou= t, easy to get, pick your weight, only mods seem to be drilling the mountin= g holes and welding on a second gear ring.=0A>>>>=0A>>>>-- =0A>>>>David Leo= nard=0A>>>>=0A>>>> --0-309188941-1311055457=:96717 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable
Dave,
   Got you= ............I thought when you said "Engine side of the mounting flange you= meant Tracy's plate.............Approx 1.754 it is !!..= ...........
 
Kelly Troyer
"= DYKE DELTA JD2" (Eventually)
"13B ROTARY"_ Engine
"RWS= "_RD1C/EC2/EM2
"MISTRAL"_Backplate/Oil Manifold
"TURBONETICS"_TO4E50 Turbo

From:= David Leonard <wdleonard@gmail.com>
To: Rotary motors in aircraft <flyrotary@l= ancaironline.net>
Sent: Monday, July 18, 2011 11:28 PM
S= ubject: [FlyRotary] Re: Ok Here are the important flywheel measurements

Hi Kelly,=20
I already took Tracys plate = into account. (I measured it at .520 in).  So it was 1.234 plus the .5= 20 for the plate.  For ease, I measured when the solenoid was NOT acti= vated.  Crossing fingers, but ready to mill the plate and starter.... = eh, I mean, hire someone to do it :-)

David

On Mon, Jul 18, 2011 at 9:14 PM, Kelly= Troyer <keltro@att.net><= /SPAN> wrote:
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 a= nd have more ring 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" (Eventually)
"13B ROTARY"_ Engine
"RWS= "_RD1C/EC2/EM2
"MISTRAL"_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 9:34 PMSubject: [FlyRotary] Re: = Ok Here are the imp= ortant flywheel measurements

Kelly, here is the starter measurement. This is the starter that Tracy= recommends, I forget which one that is.  From the engine side of the = mounting flange, to the far end of the tear tooth, I measure 1.754 - give o= r take.=20

-- 
David Leonard

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

On Mon, Jul 18, 2011 at 6:16 PM, Kelly Troyer <keltro@att.net> 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 th= e 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 kh= ow if this
would pose a problem or not...........
 
Kelly Troyer
"DYKE DELTA JD2" (Eventually)
"13B ROTARY"_ Engine
"RWS= "_RD1C/EC2/EM2
"MISTRAL"_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 7:55 PMSubject: [FlyRotary] Re: = Ok Here are the imp= ortant 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 bring mine to = a machine shop and let them figure it out  :-)
 
--
David Leonard

Turbo Rotary RV-6 N4VY
http://N4VY.RotaryRoster.net
<= A href=3D"http://rotaryroster.net/" rel=3Dnofollow target=3D_blank>http://R= otaryRoster.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 surface for th= e 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
"MISTRAL"_<= SPAN>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 t= he important flywheel measurements

Dave,
   The link attached shows the prolite version = (9.8 lbs) on the left in the photo.............Do you have your starte= r 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
"MISTRAL"_<= SPAN>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 Here are the important flywheel measurements

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

Turbo Rotary RV-6 N4VY
http://N4= VY.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" "Stre= etlite" 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 necessary but wou= ld 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 b= est price I have found on the 9.8 lb flywheel......The
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
"MISTRAL"_<= SPAN>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 encourageing...............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
"MISTRAL"_<= SPAN>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 very encouragi= ng, 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 from day= care, so they are one try and slightly sloppy... I make no guarantees. = ; The height measurements of the flex plate were particularly suspect becau= se, well, mine is all warped and broken.

Ring Gear Diameter -= Perfect fit.  As we suspected, same size, same tooth spacing.

= Ring Gear Fore-Aft Placement - As measured from the underside 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 from the front o= f the big nut. The flywheel puts it 0.913.  So the flex plate puts the ring gear (appx<= /SPAN>) 0.377 in. further aft.  This is actually = fortuitous because it just so happens that the ring gear thickness is .365 = ...    So all we have to do to fix the discrepancy is weld a= nd extra ring gears onto to the flywheel ring gear and 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 possible to fix the disc= repancy by changing the starter... will look into that.

Damper Pl= ate Placement - On the flywheel, the mounting surface is proud (or aft)= of the ring gear.  On the flex plate, the mounting surface is recesse= d (or forward) from the ring gear. A
nd it all pret= ty much works out.  That position on the flywheel will vary somewhat d= epending on which flywheel you have and how much wear you have on the clutc= h slip surface. But on my (I assume well-worn) flywheel the placement was 0= .965 while the flex plate was 0.950.  Pretty damn close and given meas= urement error it might me meant to be right on.  Or, any difference co= uld be made up by trimming down the spline on the damper plate or removing = or adding spacers between the two.

So in my mind, a flywheel 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

<= /DIV>


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