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Date: Sun, 2 Sep 2007 07:03:17 -0700 (PDT)
From: James Maher <deltaflyer@prodigy.net>
Subject: Re: [FlyRotary] Which type resistors for the EC2. Trouble narrowed down.
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
In-Reply-To: <list-2305937@logan.com>
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Dave,
  I would highly recommend the wire wound with the heatsink case.
  They are very robust and can be mounted to any flat surface.
  Solder your wires to the lugs and use heat shrink tubing for stress relief.
  Jim

David Leonard <wdleonard@gmail.com> wrote:
    I now have to definitely recommend the installation of injector disable switches.  In my recent flights I have come upon periods of extreme mixture variations and rough running engine.  Because of the injector disable switches, I have been able to trace the problem to the secondary injectors (somewhere in that circuit).  Of course, the fact that I recently installed the disable switches remains as a possible cause of my problems, but that is irrelevant. 
   
  To further narrow the hunt, I would like to simply install a different pair of secondary injectors, which I happen to have lying around.  trouble is, they are peak-and-hold type and require resistors per Tracys instructions.  I thought I would just run out to radioshack this morning and pick some up. But I see that it is not that easy.  Tracy calls for 5 ohm 25 watt resistors.  Radio shack does not sell anything like that.  Digikey has 2 types with that rating, thick film and wire wound.  For those of you who hear electronic speak and it does not sound like "blah blah voltage blah blah", does it matter which type I order?  The wire wound are about half the price, but that matters not.  I just want to keep the magic smoke inside the box and the propeller going round and round. 
   
  Suggestions?

-- 
David Leonard

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


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<div>Dave,</div>  <div>I would highly recommend the wire wound with the heatsink case.</div>  <div>They are very robust and can be mounted to any flat surface.</div>  <div>Solder your wires to the lugs and use heat shrink tubing for stress relief.</div>  <div>Jim<BR><BR><B><I>David Leonard &lt;wdleonard@gmail.com&gt;</I></B> wrote:</div>  <BLOCKQUOTE class=replbq style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">  <DIV>I now have to definitely recommend the installation of injector disable switches.&nbsp; In my recent flights I have come upon periods of extreme mixture variations and rough running engine.&nbsp; Because of the injector disable switches, I have been able to trace the problem to the secondary injectors (somewhere in that circuit).&nbsp; Of course, the fact that I recently installed the disable switches remains as a possible cause of my problems, but that is irrelevant. </DIV>  <DIV>&nbsp;</DIV>  <DIV>To further narrow the hunt, I
 would like to simply install a different&nbsp;pair of secondary&nbsp;injectors, which I happen to have lying around.&nbsp; trouble is, they are peak-and-hold type and require resistors per Tracys instructions.&nbsp; I thought I would just run out to radioshack this morning and pick some up. But I see that it is not that easy.&nbsp; Tracy calls for 5 ohm 25 watt resistors.&nbsp; Radio shack does not sell anything like that.&nbsp; Digikey has 2 types with that rating, thick film and wire wound.&nbsp; For those of you who hear electronic speak and it does not sound like "blah blah voltage blah blah", does it matter which type I order?&nbsp; The wire wound are about half the price, but that matters not.&nbsp; I just want to keep the magic smoke inside the box and the propeller going round and round. </DIV>  <DIV>&nbsp;</DIV>  <DIV>Suggestions?<BR clear=all><BR>-- <BR>David Leonard<BR><BR>Turbo Rotary RV-6 N4VY<BR><A
 href="http://n4vy.rotaryroster.net/">http://N4VY.RotaryRoster.net</A><BR><A href="http://rotaryroster.net/">http://RotaryRoster.net </A></DIV></BLOCKQUOTE><BR>
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