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References: <list-4183052@logan.com>
To: flyrotary@lancaironline.net
Subject: Re: [FlyRotary] Oil Leak
Date: Mon, 29 Mar 2010 20:38:03 -0400
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Why not take out the oil injection and go with the pre-mixed gas and oil?=
 Crankcase oil is not optimum for the rotary and does not burn completely,=
 leading to carbon build-up on the rotors and in high milage engines, unev=
en wear in the rotor housing surfaces. Premixing 1:100 2 stroke oil into=
 the gas will give much more even distribution of oil throughout the combu=
stion chamber and will burn much cleaner than crankcase oil injected into=
 the trochoid chamber. Also, you'll save a small amount of weight for the=
 injection pump and lines, and won't have to worry about the injection lin=
es ever leaking again, because they won't be there.

That's my opinion, your results may vary.

Brian Trubee






-----Original Message-----
From: John <downing.j@sbcglobal.net>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Mon, Mar 29, 2010 5:10 pm
Subject: [FlyRotary] Oil Leak


Spring may be coming to Northern Michigan, it was 48 degrees today, so I=
 pulled the 13B Tailwind out in the sun and let it warm up some.  I finall=
y got the engine to run, I thought I had it running well last fall, but it=
 would only run with the cold start switch on and when I moved the program=
 switch from 0, the engine quit, so must start over with the programming.
  I started it up with the Weber 48 and it ran fine and I had a chance to=
 find the oil leak, only took about a minute of running.  I'm using the Ma=
zda rotor oilers and one of the lines had a 3/4" split in it right above=
 the valve.  Is Mazdatrix the place that has the SS lines to replace the=
 nylon lines.  At first it looked like the leak was between the windage/mo=
tormount plate and the block, as there were 3 cap screws loose in that cor=
ner, so I removed them, drilled for safety wire and reinstalled.  The engi=
ne had 10.3 hours on it today.  JohnD


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<font color=3D'black' size=3D'2' face=3D'arial'>
<div>Why not take out the oil injection and go with the pre-mixed gas and=
 oil? Crankcase oil is not optimum for the rotary and does not burn comple=
tely, leading to carbon build-up on the rotors and in high milage engines,=
 uneven wear in the rotor housing surfaces. Premixing 1:100 2 stroke oil=
 into the gas will give much more even distribution of oil throughout the=
 combustion chamber and will burn much cleaner than crankcase oil injected=
 into the trochoid chamber. Also, you'll save a small amount of weight for=
 the injection pump and lines, and won't have to worry about the injection=
 lines ever leaking again, because they won't be there.</div>


<div>&nbsp;</div>


<div>That's my opinion, your results may vary.</div>


<div>&nbsp;</div>


<div>Brian Trubee<br>
<br>
</div>


<div style=3D"CLEAR: both"></div>
<br>
<br>


<div style=3D"FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: arial,helvetica"=
>-----Original Message-----<br>
From: John &lt;downing.j@sbcglobal.net&gt;<br>
To: Rotary motors in aircraft &lt;flyrotary@lancaironline.net&gt;<br>
Sent: Mon, Mar 29, 2010 5:10 pm<br>
Subject: [FlyRotary] Oil Leak<br>
<br>


<div id=3DAOLMsgPart_2_320d5d09-8e7d-49cf-8d68-184e841f31a9>

<div><FONT face=3DArial size=3D2>Spring may be coming to Northern Michigan=
, it was 48 degrees today, so I pulled the 13B Tailwind out in the sun and=
 let it warm up some.&nbsp; I finally got the engine to run, I thought I=
 had it running well last fall, but it would only run with the cold start=
 switch on and when I moved the program switch from 0, the engine quit, so=
 must start over with the programming.</FONT></div>


<div><FONT face=3DArial size=3D2>&nbsp; I started it up with the Weber 48=
 and it ran fine and I had a chance to find the oil leak, only took about=
 a minute of running.&nbsp; I'm using the Mazda rotor oilers and one of th=
e lines had a 3/4" split in it right above the valve.&nbsp; Is Mazdatrix=
 the place that has the SS lines to replace the nylon lines.&nbsp; At firs=
t it looked like the leak was between the windage/motormount plate and the=
 block, as there were 3 cap screws loose in that corner, so I removed them=
, drilled for safety wire and reinstalled.&nbsp; The engine had 10.3 hours=
 on it today.&nbsp; JohnD</FONT></div>
</div>
<!-- end of AOLMsgPart_2_320d5d09-8e7d-49cf-8d68-184e841f31a9 --></div>
</font>

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