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Information
on Proper Leaning of Aircraft Engines:
Easy 4-Step
Leaning Operation:
1.
Align the EGT monitor pointers low on the scales using the control knobs. |
2.
Lean the mixture. All the pointers should rise. The first pointer that
reverses is the leanest cylinder, #2 in this diagram. |
3.
Use that pointer for the final adjustment, 0-50 degrees rich of peak EGT
or lean of peak EGT if your engine manufacturer sanctions operation in
this range. |
4.
Align the pointers over the pointer symbol and enjoy your flight! Changes
in the EGT on any cylinder are easily noted. |
Note: In
this example cylinder #2 is shown to be the leanest. In practice it could
be any of the cylinders, and NOT NECESSARILY THE HOTTEST. Ideally all the
pointers would reverse at the same mixture setting, unfortunately this
is rarely the case. |
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