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Thermostat ?

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andynfultz(at)bellsouth.n
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Posted: Mon Oct 31, 2011 5:51 pm Post subject: Thermostat ?

[quote]   Anybody know where I    can get a replacement thermostat for my STRATUS EA-81 engine.  I don't    think mine is functioning properly.  It seems to be sticking open for a    while and as of late I think it's sticking closed.  Can't seem to make up    its mind what it wants to do.  Sometimes it will function somewhat    properly.  Today on a short flight I could tell it was working as it    should then toward the end of the flight it stuck closed again.     Thanks.

    

   Andy

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billvt1(at)gmail.com
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Posted: Tue Nov 01, 2011 4:46 am Post subject: Thermostat ?

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andynfultz(at)bellsouth.n
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Posted: Tue Nov 01, 2011 7:58 pm Post subject: Thermostat ?

billvt1,

  I got no body to your reply.  Try it again Please.



Andy



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tshankland(at)sbcglobal.n
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Posted: Thu Nov 03, 2011 6:24 am Post subject: Thermostat ?

Andy,

 Here is something you might want to consider. I too have notices times when my temperature reads above 200, it usually is at about 190. I had concern that something was amiss in my cooling system. I measured the temperature both with an inferred sensor and a thermocouple on the engine when I returned from a flight. I was never able to get a reading as high as shown on the gage. I then noticed if the engine was off the reading declined about 10 degrees. What I have determined is that there is a voltage sensitivity in the  VDO meters, higher voltage higher reading. Thus after flying a while and the batteries get fully charged the voltage tents to rise, along with the temperature. I'm going to put together a small circuit to clamp the voltage going to the water and oil temperature at 12 to 12.5 volts and then see what happens. I probably will get it done and in the air this week or next and then see what happens.

 

 TIm Shankland

 

 Andy Fultz wrote: [quote]         (at)font-face { 	font-family: Calibri; } (at)page WordSection1 {size: 8.5in 11.0in; margin: 1.0in 1.0in 1.0in 1.0in; } P.MsoNormal { 	FONT-SIZE: 11pt; MARGIN: 0in 0in 0pt; COLOR: windowtext; FONT-FAMILY: "Calibri","sans-serif" } LI.MsoNormal { 	FONT-SIZE: 11pt; MARGIN: 0in 0in 0pt; COLOR: windowtext; FONT-FAMILY: "Calibri","sans-serif" } DIV.MsoNormal { 	FONT-SIZE: 11pt; MARGIN: 0in 0in 0pt; COLOR: windowtext; FONT-FAMILY: "Calibri","sans-serif" } A:link { 	COLOR: blue; TEXT-DECORATION: underline; mso-style-priority: 99 } SPAN.MsoHyperlink { 	COLOR: blue; TEXT-DECORATION: underline; mso-style-priority: 99 } A:visited { 	COLOR: purple; TEXT-DECORATION: underline; mso-style-priority: 99 } SPAN.MsoHyperlinkFollowed { 	COLOR: purple; TEXT-DECORATION: underline; mso-style-priority: 99 } P { 	FONT-SIZE: 12pt; MARGIN-LEFT: 0in; COLOR: #000066; MARGIN-RIGHT: 0in; FONT-FAMILY: "Times New Roman","serif"; mso-style-priority: 99; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto } SPAN.EmailStyle17 { 	COLOR: windowtext; FONT-FAMILY: "Calibri","sans-serif"; mso-style-type: personal-compose } .MsoChpDefault { 	FONT-FAMILY: "Calibri","sans-serif"; mso-style-type: export-only } DIV.WordSection1 { 	page: WordSection1 }      <![endif]-->   <![endif]-->    

    	  Quote: 	
		       Anybody know where I can get a replacement thermostat for my STRATUS EA-81 engine.  I don't think mine is functioning properly.  It seems to be sticking open for a while and as of late I think it's sticking closed.  Can't seem to make up its mind what it wants to do.  Sometimes it will function somewhat properly.  Today on a short flight I could tell it was working as it should then toward the end of the flight it stuck closed again.  Thanks.

      

     Andy

   

	
 [b]

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andynfultz(at)bellsouth.n
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Posted: Thu Nov 03, 2011 5:58 pm Post subject: Thermostat ?

Hey  Tim,  I'm using digital guages and haven't noticed the behaviour you  have.  I think my thermostat is just not opening and closing as it  should.

  

 Andy

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tshankland(at)sbcglobal.n
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Posted: Fri Nov 04, 2011 5:15 am Post subject: Thermostat ?

Andy,

 If you are using digital gages you are probably not affected by voltage variations, digital circuit will have their own internal voltage regulation.

 Tim

 

 Andy Fultz wrote: [quote]            Hey Tim,  I'm using digital guages and haven't noticed the behaviour you have.  I think my thermostat is just not opening and closing as it should.

    

   Andy

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