REFLECTOR: EGT Temps

[Ron Brown]

John, try swapping the EGT to another cylinder and see if the problem moves with the probe.  If the high temp moves to the new cylinder, there is something wrong with the probe or wiring.

If another probe shows the same rise, its time to find out what is wrong with that cylinder.  You didn't mention if your mag checks were ok.  Same engine RPM drop with both mag checks and runs smoothly on each single mag?

Ronnie
  ----- Original Message ----- 
  From: Sid Knox 
  To: Velocity Aircraft Owners and Builders list 
  Sent: Wednesday, April 27, 2005 11:45 PM
  Subject: Re: REFLECTOR: EGT Temps


  John,
  No, with a carburetor the mixture balance between cylinders is generally acknowledged to be rather poor. An extreme difference of one cylinder may indicate a vacuum leak. I am assuming that at cruise, you are running the mixture rich-of-peak. From there, any leaning will increase EGT (and CHT).

  Sid Knox


  > Also when I
  > start the engine, this one egt goes to 680 in a few minutes while
  > taxiing. The others are 250-300. After takeoff it drops a little and
  > settles down around 600 at cruise. With a carburetor, shouldn't the
  > egt's be all the same?


         has notified the sender that this message has been received. 





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