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Date: Tue, 6 Oct 2009 15:34:26 -0500
Message-ID: <5cf132c0910061334h72dfcb1aj478065cf41b02a20@mail.gmail.com>
Subject: Re: [FlyRotary] Re: Seepage, no more. Oil system
From: Mark Steitle <msteitle@gmail.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Content-Type: multipart/alternative; boundary=0003255538460b041504754a2826

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Jeff,

Following Tracy's rotary A/C how-to manual, I removed the springs &
check-balls from my 3-rotor, brazed the holes shut and re-drilled them.

Mark S.

On Tue, Oct 6, 2009 at 2:44 PM, Jeff Whaley <jwhaley@datacast.com> wrote:

>  Hi Lynn, with regards to your high-lighted comment about the check balls
> in the crank =96 that is one item Bruce Turrentine suggested be removed i=
n an
> overhaul for aircraft applications, replacing the balls with a carburetor
> jet to allow oil flow right away and continuously. So, I did install
> carburetor jets in my e-shaft during rebuild. Any comments? Anybody else =
out
> there do the same thing?  Just curious as I=92m fighting high oil temps.
>
> Jeff
>
>
>
> Plus, the rotary is cold blooded. The big bearings stress the oil film to
> no great extent, and the major source of oil temperature is rotor cooling=
.
> At low speeds and idle, the check balls in the crank don't even open to
> allow cooling oil to spray into the engine. Those balls operate as a
> function of RPM not temperature.
>
>
>
> On the other hand, you will get a water temperature increase within one
> minute of startup. A water based coolant has very low viscosity and flow =
to
> a distant heat exchanger will be immediate. Like the rear heater in my
> school bus.
>
>
>
> Lynn E. Hanover
>
>
>

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<div>Jeff, </div>
<div>=A0</div>
<div>Following Tracy&#39;s rotary A/C=A0how-to manual, I removed the spring=
s &amp; check-balls from my 3-rotor, brazed the holes shut and re-drilled t=
hem.</div>
<div>=A0</div>
<div>Mark S.<br><br></div>
<div class=3D"gmail_quote">On Tue, Oct 6, 2009 at 2:44 PM, Jeff Whaley <spa=
n dir=3D"ltr">&lt;<a href=3D"mailto:jwhaley@datacast.com">jwhaley@datacast.=
com</a>&gt;</span> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"PADDING-LEFT: 1ex; MARGIN: 0px 0=
px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">
<div lang=3D"EN-US" vlink=3D"purple" link=3D"blue">
<div>
<p><span style=3D"FONT-SIZE: 12pt; COLOR: #1f497d; FONT-FAMILY: &#39;Times =
New Roman&#39;,&#39;serif&#39;">Hi Lynn, with regards to your high-lighted =
comment about the check balls in the crank =96 that is one item Bruce Turre=
ntine suggested be removed in an overhaul for aircraft applications, replac=
ing the balls with a carburetor jet to allow oil flow right away and contin=
uously. So, I did install carburetor jets in my e-shaft during rebuild. Any=
 comments? Anybody else out there do the same thing?=A0 Just curious as I=
=92m fighting high oil temps.</span></p>

<p><span style=3D"FONT-SIZE: 12pt; COLOR: #1f497d; FONT-FAMILY: &#39;Times =
New Roman&#39;,&#39;serif&#39;">Jeff</span><span style=3D"FONT-SIZE: 12pt; =
FONT-FAMILY: &#39;Times New Roman&#39;,&#39;serif&#39;"></span></p>
<p><span style=3D"FONT-SIZE: 12pt; FONT-FAMILY: &#39;Times New Roman&#39;,&=
#39;serif&#39;">=A0</span></p>
<p><span style=3D"FONT-SIZE: 12pt; BACKGROUND: yellow; FONT-FAMILY: &#39;Ti=
mes New Roman&#39;,&#39;serif&#39;">Plus, the rotary is cold blooded. The b=
ig bearings stress the oil film to no great extent, and the major source of=
 oil temperature is rotor cooling. At low speeds and idle, the check balls =
in the crank don&#39;t even open to allow cooling oil to spray into the eng=
ine. Those balls operate as a function of RPM not temperature.</span><span =
style=3D"FONT-SIZE: 12pt; FONT-FAMILY: &#39;Times New Roman&#39;,&#39;serif=
&#39;">=A0</span></p>

<p><span style=3D"FONT-SIZE: 12pt; FONT-FAMILY: &#39;Times New Roman&#39;,&=
#39;serif&#39;">=A0</span></p>
<p><span style=3D"FONT-SIZE: 12pt; FONT-FAMILY: &#39;Times New Roman&#39;,&=
#39;serif&#39;">On the other hand, you will get a water temperature increas=
e within one minute of startup.=A0A water based coolant has very low viscos=
ity and flow to a distant heat exchanger will be immediate. Like the rear h=
eater in my school bus.</span></p>

<p><span style=3D"FONT-SIZE: 12pt; FONT-FAMILY: &#39;Times New Roman&#39;,&=
#39;serif&#39;">=A0</span></p>
<p><span style=3D"FONT-SIZE: 12pt; FONT-FAMILY: &#39;Times New Roman&#39;,&=
#39;serif&#39;">Lynn E. Hanover</span></p>
<p>=A0</p></div></div></blockquote></div><br>

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