X-Junk-Score: 0 [] X-Cloudmark-Score: 0 [] X-Cloudmark-Analysis: v=2.2 cv=UschDK4B c=1 sm=1 tr=0 a=oXop913s/Us9UsaWdXZdVg==:117 a=2J0hlURz4D+EIULnUSUy3A==:17 a=WhYfPglTnXwA:10 a=CQbpi0b-i3wA:10 a=x7bEGLp0ZPQA:10 a=e8BSqymJ620A:10 a=JHtHm7312UAA:10 a=Ia-xEzejAAAA:8 a=o2QoyYduAAAA:8 a=hOpmn2quAAAA:8 a=on22okXAAAAA:8 a=7g1VtSJxAAAA:8 a=nw2DbmrNzX7D_kOVe5AA:9 a=XsHDgmUz_LtixF_a:21 a=yu-fmzFUrVGoag99:21 a=QEXdDO2ut3YA:10 a=Qa1je4BO31QA:10 a=gvSQh4r-fQ0A:10 a=UfdH4XfDtxc8yIeU:21 a=pwi3SumxToylIJqE:21 a=SWOk4jf8jM39RiRP:21 a=Urk15JJjZg1Xo0ryW_k8:22 a=S50rnUa8yRbNnh2hyxzf:22 a=GyA-uvUxXSCciAkwuKQO:22 a=NPqpj5bUEVj9vR1HIonK:22 a=grOzbf7U_OpcSX4AJOnl:22 From: " argoldman@aol.com" Received: from omr-m001e.mx.aol.com ([204.29.186.1] verified) by logan.com (CommuniGate Pro SMTP 6.2.9) with ESMTPS id 11851807 for flyrotary@lancaironline.net; Wed, 07 Nov 2018 15:07:01 -0500 Received-SPF: pass receiver=logan.com; client-ip=204.29.186.1; envelope-from=argoldman@aol.com Received: from mtaomg-mbe02.mx.aol.com (mtaomg-mbe02.mx.aol.com [172.26.254.176]) by omr-m001e.mx.aol.com (Outbound Mail Relay) with ESMTP id 7AA6A3800097 for ; Wed, 7 Nov 2018 15:06:44 -0500 (EST) Received: from core-abc01a.mail.aol.com (core-abc01.mail.aol.com [172.27.9.11]) by mtaomg-mbe02.mx.aol.com (OMAG/Core Interface) with ESMTP id 1802B38000081 for ; Wed, 7 Nov 2018 15:06:44 -0500 (EST) Received: from 23.25.33.118 by webjas-vaa189.srv.aolmail.net (10.96.33.192) with HTTP (WebMailUI); Wed, 07 Nov 2018 15:06:43 -0500 Date: Wed, 7 Nov 2018 15:06:43 -0500 To: flyrotary@lancaironline.net Message-Id: <166efc8c3f6-1ec2-71c@webjas-vaa189.srv.aolmail.net> In-Reply-To: References: Subject: Re: [FlyRotary] Re: Flexplare Replacement MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_2613_435781661.1541621203958" X-MB-Message-Source: WebUI X-MB-Message-Type: User X-Mailer: JAS DWEB X-Originating-IP: [23.25.33.118] x-aol-global-disposition: G DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mx.aol.com; s=20150623; t=1541621204; bh=CbJdQUTMQxhcmtyA49SC1cEUjtsspyCCXXV6VJ2C1Lk=; h=From:To:Subject:Message-Id:Date:MIME-Version:Content-Type; b=anXcdfpd4z7agu1rb2QfnomVG0UrUlf8Ym2rHEHt5fDFIeVv6RUCqrgaz5Ufi2ZYd yq86oZwHseKsl9GYECnk3+6uFGgR4d9MO686NEEeEfzrkL56OK6EndyfKHkvvfBS/D EoDD2yl3XWIpkIsPHHjxdSO7Ydgkk1AfLOmyIZqM= x-aol-sid: 3039ac1afeb05be345d4256c ------=_Part_2613_435781661.1541621203958 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable It looks like a great solution for flexplateopathy. What is involved in replacing the flexible part of this coupling? thanks =C2=A0 Rich =C2=A0 In a message dated 11/7/2018 2:02:24 PM Central Standard Time, flyrotary@la= ncaironline.net writes: =C2=A0 joe, =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Just unbolt the old flex drive, and bolt min= e on. Neil Unger. On 11/7/2018 9:10 PM, Joseph Berki jskmberki@windstream.net wrote: > Neil, > > Are there any modifications to the RD-1C hardware using your solution? > > Joe Berki > > -----Original Message----- > From: Rotary motors in aircraft > Sent: Tuesday, November 6, 2018 8:02 PM > To: Rotary motors in aircraft > Subject: [FlyRotary] Re: Flexplare Replacement > > Marc, > > Attached photo is of the original mounted on my engine, The unit shown ha= s urethane as the "flex" which lasted about 5 hours and the spacer is the o= riginal without excess material milled off for lightness. Input shaft is Tr= acy's whereas mine is one piece and a lot dearer!! Basically as shown the p= late with the vulcanised drive block is bolted through the spacer and flexp= late onto the e shaft as shown and is lighter than Tracy's but by how much = I forget. Made specifically to retrofit all Tracy's reduction drives. > > Neil Unger. > > > On 11/7/2018 10:12 AM, Marc Wiese cardmarc@charter.net wrote: >> Neil, >> Can I see a sketch of how it all fits together front to back? >> Marc >> >> -----Original Message----- >> From: Rotary motors in aircraft >> Sent: Tuesday, November 06, 2018 3:28 PM >> To: Rotary motors in aircraft >> Subject: [FlyRotary] Re: Flexplare Replacement >> >> Joe, There is another way which is my cushion drive (attached) which wil= l cost approx $500 USD plus freight with the current exchange rate. Main co= st is the splined drive block so that it matches up with Tracy's splined in= put shaft. The photo shows the 2 parts of the unit, spacer and splined cush= ion drive, which bolt direct onto the e shaft with the normal flexplate in = between. Uses the normal flexplate with no strain whatever on the flexplate= . Your money and your decision!! >> >> Neil Unger >> >> >> On 11/7/2018 6:06 AM, Jeff Whaley jwhaley@datacast.com wrote: >>> Hi Joe, I believe there are two ways you can go, though I don't have pa= rt numbers or exact details for you: >>> 1) Tracy's Method: Use an aluminum flywheel directly, including the cen= ter spline coupling - this eliminates the damper plate and the need to dril= l holes. The catch is the spline does not match the original RD1-C prop sha= ft spline. >>> 2) Dave Leonard's Method: Use an aluminum flywheel, no center spline, m= ount the damper plate, remove material from one face to adjust ring gear po= sition relative to starter. >>> A quick search of the list should get you more info as it was discussed= lately ... >>> Jeff >>> >>> I have been looking at various flywheels for possible candidate replace= ment. >>> >>> I thought the aluminum units would provide the least amount of weight g= ain. >>> >>> I noticed that there are a lot of holes in these units including the re= placeable friction area with many screw holes. >>> >>> I was under the impression that the holes in the flexplate promoted str= ess cracks. >>> >>> These flywheels however may have sufficient material to counteract the = stress potential. >>> >>> Can someone provide a brand or part number that is acceptable? >>> >>> I believe that the additional machining to modify one of these flywheel= s is the holes for the torsional damper. >>> >>> Thanks for any help. >>> >>>=20 >>> >>> Joe Berki >>> >>> -- >>> Homepage: http://www.flyrotary.com/ >>> Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/Lis= t.html >> >> -- >> Homepage: http://www.flyrotary.com/ >> Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List= .html > > > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.= html -- Homepage: http://www.flyrotary.com/ Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.ht= ml ------=_Part_2613_435781661.1541621203958 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable
It looks like a great solu= tion for flexplateopathy.
What is involved in replac= ing the flexible part of this coupling?
thanks

Rich

In a message dated 11/7/2018 2:02:24 PM Central Standard Time, flyrotary@la= ncaironline.net writes:

joe,

   &nbs= p;            &= nbsp; Just unbolt the old flex drive, and bolt mine on.

Neil Unger.<= br>

On 11/7/2018 9:10 PM, Joseph Berki jskmberki@windstream.net wrote:
> Neil,
>> Are there any modifications to the RD-1C hardware using your solution= ?
>
> Joe Berki
>
> -----Original Message-----
&= gt; From: Rotary motors in aircraft <flyrotary@lancaironline.net>
> Sent: Tuesday, Nove= mber 6, 2018 8:02 PM
> To: Rotary motors in aircraft <flyrotary@lancaironline.net>
&= gt; Subject: [FlyRotary] Re: Flexplare Replacement
>
> Marc,>
> Attached photo is of the original mounted on my engine, The u= nit shown has urethane as the "flex" which lasted about 5 hours and the spa= cer is the original without excess material milled off for lightness. Input= shaft is Tracy's whereas mine is one piece and a lot dearer!! Basically as= shown the plate with the vulcanised drive block is bolted through the spac= er and flexplate onto the e shaft as shown and is lighter than Tracy's but = by how much I forget. Made specifically to retrofit all Tracy's reduction d= rives.
>
> Neil Unger.
>
>
> On 11/7/2018 10:= 12 AM, Marc Wiese cardmarc@charter.= net wrote:
>> Neil,
>> Can I see a sketch of how it a= ll fits together front to back?
>> Marc
>>
>> --= ---Original Message-----
>> From: Rotary motors in aircraft <flyrotary@lancaironline.net>
>> Sent: Tuesday, November 06, 2018 3:28 PM
>> To: = Rotary motors in aircraft <flyrotary@lancaironline.net>
>> Subject: [FlyRotary] Re: = Flexplare Replacement
>>
>> Joe, There is another way whi= ch is my cushion drive (attached) which will cost approx $500 USD plus frei= ght with the current exchange rate. Main cost is the splined drive block so= that it matches up with Tracy's splined input shaft. The photo shows the 2= parts of the unit, spacer and splined cushion drive, which bolt direct ont= o the e shaft with the normal flexplate in between. Uses the normal flexpla= te with no strain whatever on the flexplate. Your money and your decision!!=
>>
>> Neil Unger
>>
>>
>> On = 11/7/2018 6:06 AM, Jeff Whaley jwha= ley@datacast.com wrote:
>>> Hi Joe, I believe there are two= ways you can go, though I don't have part numbers or exact details for you= :
>>> 1) Tracy's Method: Use an aluminum flywheel directly, inc= luding the center spline coupling - this eliminates the damper plate and th= e need to drill holes. The catch is the spline does not match the original = RD1-C prop shaft spline.
>>> 2) Dave Leonard's Method: Use an a= luminum flywheel, no center spline, mount the damper plate, remove material= from one face to adjust ring gear position relative to starter.
>>= ;> A quick search of the list should get you more info as it was discuss= ed lately ...
>>> Jeff
>>>
>>> I have b= een looking at various flywheels for possible candidate replacement.
>= ;>>
>>> I thought the aluminum units would provide the le= ast amount of weight gain.
>>>
>>> I noticed that t= here are a lot of holes in these units including the replaceable friction a= rea with many screw holes.
>>>
>>> I was under the = impression that the holes in the flexplate promoted stress cracks.
>&= gt;>
>>> These flywheels however may have sufficient materia= l to counteract the stress potential.
>>>
>>> Can s= omeone provide a brand or part number that is acceptable?
>>>>>> I believe that the additional machining to modify one of the= se flywheels is the holes for the torsional damper.
>>>
>= >> Thanks for any help.
>>>
>>>
>>&= gt;
>>> Joe Berki
>>>
>>> --
>>= ;> Homepage: http://www.flyrotary.com/
>>> Archive and UnS= ub: http://mail.lancaironline.net:81/lists/f= lyrotary/List.html
>>
>> --
>> Homepage: http:= //www.flyrotary.com/
>> Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.html
>
>
> --
> Homepage: http://www.flyrotary.com/<= br>> Archive and UnSub: http://mail.lanca= ironline.net:81/lists/flyrotary/List.html


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