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EGT Asterik


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I noticed an asterik on my EGT gauge.  I am not sure what it is for, but it seems to align somewhat with a 50 degrees ROP operation at most flight levels when leaning the engine.  This is in my 1974 Mooney 20C.  Can someone tell me it's purpose and if it was intended as a tool for leaning the fuel mixture?  I'll take a picture of it next time i am flying

 

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Set it up/adjust it.... calibrate(?) it so the needle points to the asterisk when at peak EGT...   :)

On a numberless instrument... calibration isn’t exactly the right word to use...

For more information, there is an Alcor site that will have the details that you seek.

https://alcorinc.com/PDF/59185.pdf

PP thoughts from old fuzzy memories....

Best regards,

-a-

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