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Non-Moving EGT's

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jbhart(at)onlyinternet.ne
Guest

Posted: Wed Oct 29, 2008 10:41 am Post subject: Non-Moving EGT's

At 07:51 PM 10/26/08 -0700, you wrote:

 	  Quote: 	
		  



..............................
	


 	  Quote: 	
		  I am still chasing egts. I raised my needle  one notch and am still getting 

right at 1200o but then engine runs just as well as it did  before the 
	


adjustment. I am going to read the plugs next time I get the airport.

 	  Quote: 	
		  


	


Grant,



If you raise the needle and the EGT's do not move down, it may indicate that 

the main jet is limiting fuel flow.  Try increasing your main jet to the 

next larger size.



Jack B. Hart FF004

Winchester, IN

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Dana

Joined: 13 Dec 2007
Posts: 1047
Location: Connecticut, USA

Posted: Wed Oct 29, 2008 1:43 pm Post subject: Non-Moving EGT's

At 03:41 PM 10/29/2008, Jack B. Hart wrote:

 	  Quote: 	
		  At 07:51 PM 10/26/08 -0700, you wrote:

 >

 >

...............................

 >I am still chasing egts. I raised my needle  one notch and am still getting

right at 1200o but then engine runs just as well as it did  before the

adjustment. I am going to read the plugs next time I get the airport.

Grant,

If you raise the needle and the EGT's do not move down, it may indicate that

the main jet is limiting fuel flow.  Try increasing your main jet to the

next larger size.

Is this full throttle EGT?  The needle should be completely out of the jet 

and have no effect at full throttle, no?

-Dana

--

  Can I deduct last years taxes as a bad investment?

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grantr

Joined: 12 Sep 2007
Posts: 217

Posted: Wed Oct 29, 2008 5:09 pm Post subject: Re: Non-Moving EGT's

Full throttle EGTs are 1200 to 1225. 5300 to 6000 one is right on 1200 the other is  right under it so I say around 1180.



Before I installed the new Dual egt the reading on the single EGT gauge was 900o at 6000rpms

See in photo below. Nothing was changed prior to the gauge switch. I am still using the same sender EGT probe the old gauge used on the PTO cylinder.



When I checked/ changed the plugs after the  gauge change the plugs were light brown. I dont know why the 2 gauges read different on the egts

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