>>Any ideas why she would change 500+ degrees in a few hours? If you didn't notice a drastic change in performance then the gauge is broken. At 700 the cylinder should be barely firing, either way too rich or way too lean. Do you have a multi-probe EGT? What are the other cylinders doing?
IMHO, an EGT gauge on a C-series Continental is more of a distraction than anything else. The mixture distribution between the cylinders is too uneven to make much use of it. John Cooper Skyport Services www.skyportservices.net
