CHT guage installation

[jpatterson]

I'm not confident leaning my '78 GCAA and hoping a CHT guage will help. What cylinder is generally the hottest and the likely location for the CHT probe? JP

 

[Mnflyer]

Hi jp, for leaning you will want an EGT gage as they react almost instantly where as CHT takes a long time to show and by the time it does damage could have already occurred.

 

[Tom]

FYI-

Suggest you read page 3 of the linked Lycoming Key Reprint for the official leaning advice.

http://www.lycoming.textron.com/support/tips-advice/key-reprints/pdfs/Key%20Operations.pdf

The carburetored engine fuel distribution is so uneven that EGT's will vary widely and are essentially useless for leaning.

Tom-