X-Virus-Scanned: clean according to Sophos on Logan.com
From: "Kelly Troyer" <flyrotary@lancaironline.net>
Received: from mail-oi0-f47.google.com ([209.85.218.47] verified)
  by logan.com (CommuniGate Pro SMTP 6.1c4)
  with ESMTPS id 7472216 for flyrotary@lancaironline.net; Fri, 06 Feb 2015 17:17:59 -0500
Received-SPF: pass
 receiver=logan.com; client-ip=209.85.218.47; envelope-from=keltro@gmail.com
Received: by mail-oi0-f47.google.com with SMTP id a141so14301415oig.6
        for <flyrotary@lancaironline.net>; Fri, 06 Feb 2015 14:17:23 -0800 (PST)
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=QGyi8aj4WftJiB4z1teqmNVjq1GFEwlvnZnn9W4K/v4=;
        b=wcHKX29W1T9PW2aTcILnPlt1zVeMAYJYjTPchAPgNjVPft4hvA642aVKFvqpq/ZB+k
         qqpvqonfNXZewy+6bgnqZ5Q0mJPj70ms7rMucPD9zY37PEm39dC6PFDNVcJyN0y02zLE
         YxZ3N03zIggaO7Shd509rq2PQTZDOHLLL7Wfa23xt+DqHYaNXjMFH5bPxvISmZxrEuJ/
         bmakFUoWVHhwT2QrRMNAK2vUCCrYj80cgNYlO1wxo/aT0+nWc86SeEQjpMS15HyqGwqB
         mp+vVeArBDZpNYE8Ablpy062cSmc/XgmIK0VUg0oqR18duPtCOYbdwcG4XSEJwqKRkeS
         M0sg==
MIME-Version: 1.0
X-Received: by 10.202.104.68 with SMTP id d65mr3800770oic.129.1423261043636;
 Fri, 06 Feb 2015 14:17:23 -0800 (PST)
Received: by 10.202.94.130 with HTTP; Fri, 6 Feb 2015 14:17:23 -0800 (PST)
In-Reply-To: <list-7470478@logan.com>
References: <list-7470478@logan.com>
Date: Fri, 6 Feb 2015 16:17:23 -0600
Message-ID: <CAKEmuZ_W-bpGCuysS3dMSx3Dr+zKsUQ0D0TLM1uBfkd8Qzb_Lg@mail.gmail.com>
Subject: Re: [FlyRotary] Re: 20B Engines
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Content-Type: multipart/alternative; boundary=001a1140fb86edbfe3050e72c870

--001a1140fb86edbfe3050e72c870
Content-Type: text/plain; charset=UTF-8

Thanks Mark........That is the info I was looking for............I happen
to have a 13B Cosmo that has the later housings
and I had only read about the reinforced housings.........

Kelly

On Fri, Feb 6, 2015 at 6:49 AM, Mark Steitle <flyrotary@lancaironline.net>
wrote:

> Kelly,
>
> I wouldn't hesitate to use an early 20b.  The early 20b housings are
> plenty robust enough for a/c use.  The beefier irons could be an issue if
> you're building a turbo race engine due to the higher loads imposed during
> up shifting and down shifting.  We don't experience any of those loads.
>
> I'm pretty certain that my 20b is an early model and I have not
> experienced any issues with irons cracking around the dowels.  The weakest
> area is along the inner walls of the o-ring grooves nearest the water
> jackets. If your o-rings aren't to factory specs, you run the risk of
> cracking an o-ring wall which ruins the housing.  Been there, done that.
> If you treat the engine with the same care you would a certified a/c
> engine, then you won't have any trouble with longevity.
>
> Mark
>
> On Fri, Feb 6, 2015 at 12:00 AM, Kelly Troyer <flyrotary@lancaironline.net
> > wrote:
>
>>  Mark Steitle or other 20B Drivers,
>>
>>      I am looking at a 20B that looks to be an early one before they
>> added additional
>> metal in the dowel/oil passage area of the iron housings because of some
>> that I have
>> read developed cracks in this area in service in the autos I
>> presume.......
>>
>>      Can you tell me if this a potential problem for the 20B in our
>> aircraft use ?.......Also
>> can you tell me if your 20B has the later reinforced housings ?.........
>>
>> --
>> Kelly Troyer
>>
>>
>

--001a1140fb86edbfe3050e72c870
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr">Thanks Mark........That is the info I was looking for.....=
.......I happen to have a 13B Cosmo that has the later housings<div>and I h=
ad only read about the reinforced housings.........<br><div><br></div><div>=
Kelly</div></div><div class=3D"gmail_extra"><br><div class=3D"gmail_quote">=
On Fri, Feb 6, 2015 at 6:49 AM, Mark Steitle <span dir=3D"ltr">&lt;<a href=
=3D"mailto:flyrotary@lancaironline.net" target=3D"_blank">flyrotary@lancair=
online.net</a>&gt;</span> wrote:<br><blockquote class=3D"gmail_quote" style=
=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir=
=3D"ltr"><div><div><div>Kelly, <br><br></div>I wouldn&#39;t hesitate to use=
 an early 20b.=C2=A0 The early 20b housings are plenty robust enough for a/=
c use.=C2=A0 The beefier irons could be an issue if you&#39;re building a t=
urbo race engine due to the higher loads imposed during up shifting and dow=
n shifting.=C2=A0 We don&#39;t experience any of those loads.=C2=A0 <br><br=
></div>I&#39;m pretty certain that my 20b is an early model and I have not =
experienced any issues with irons cracking around the dowels.=C2=A0 The wea=
kest area is along the inner walls of the o-ring grooves nearest the water =
jackets. If your o-rings aren&#39;t to factory specs, you run the risk of c=
racking an o-ring wall which ruins the housing.=C2=A0 Been there, done that=
.=C2=A0 If you treat the engine with the same care you would a certified a/=
c engine, then you won&#39;t have any trouble with longevity. <br><br></div=
>Mark<br></div><div class=3D"HOEnZb"><div class=3D"h5"><div class=3D"gmail_=
extra"><br><div class=3D"gmail_quote">On Fri, Feb 6, 2015 at 12:00 AM, Kell=
y Troyer <span dir=3D"ltr">&lt;<a href=3D"mailto:flyrotary@lancaironline.ne=
t" target=3D"_blank">flyrotary@lancaironline.net</a>&gt;</span> wrote:<br><=
blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px=
 #ccc solid;padding-left:1ex"><div dir=3D"ltr">=C2=A0Mark Steitle or other =
20B Drivers,<div><br></div><div>=C2=A0 =C2=A0 =C2=A0I am looking at a 20B t=
hat looks to be an early one before they added additional</div><div>metal i=
n the dowel/oil passage area of the iron housings because of some that I ha=
ve</div><div>read developed cracks in this area in service in the autos I p=
resume.......</div><div><br></div><div>=C2=A0 =C2=A0 =C2=A0Can you tell me =
if this a potential problem for the 20B in our aircraft use ?.......Also</d=
iv><div>can you tell me if your 20B has the later reinforced housings ?....=
..... =C2=A0</div><span><font color=3D"#888888"><div><div><br></div>-- <br>=
<div>Kelly Troyer<br><br></div>
</div></font></span></div>
</blockquote></div><br></div>
</div></div></blockquote></div><br><br clear=3D"all"><div><br></div><br>
</div></div>

--001a1140fb86edbfe3050e72c870--