Garmin G1000 Mooney M20TN - Manual (Page 76)

Garmin G1000 Pilot’s Guide for the Mooney M20M/M20R/M20TN 190-00647-00 Rev. A 3-6
EIS
CYLINDER SELECT
By default, the cylinder with the hottest EGT and CHT is selected (bar indicated in light blue) when the
LEAN Softkey is pressed. The readouts below the bar graphs correspond to the selected cylinder. The CYL
SLCT Softkey can be utilized to cycle through the cylinders and obtain information about a particular cylinder,
shown in light blue on the bar graphs. This softkey is disabled during warning or caution conditions (remaining
disabled until the temperature returns to normal) or when the ASSIST Softkey is pressed (M20R aircraft
only).
Monitoring the desired cylinder’s EGT and CHT:
From the Lean Display, press the CYL SLCT Softkey to cycle through each cylinder and view its EGT and CHT.
The selected cylinder is shown in light blue.
ENGINE LEANING ASSIST
NOTE: The pilot should follow the engine manufacturer’s recommended leaning procedures in the AFM.
NOTE: The Lean Assist function is not available for the turbocharged M20M or M20TN.
The ASSIST Softkey (normally-aspirated M20R aircraft only) may be used to assist in the leaning process
by identifying the EGT peak of the selected cylinder. When the ASSIST Softkey is pressed, the system
automatically switches to the first peak obtained and displays the temperature deviation from peak (
∆ PEAK)
in degrees Fahrenheit below the EGT readout. When a cylinder peaks, its peak is represented by a hollow
block on the EGT bar graph. The EGT readout for the peaked cylinder, indicated in light blue, appears directly
beneath the bar graph.
Selecting the Engine Leaning Assist function:
From the Lean Display, press the ASSIST Softkey to identify the peak. The peak temperature for the selected
cylinder is indicated with a hollow block on the EGT Bar Graph and the temperature deviation from peak is
shown underneath the EGT Bar Graph.