Egt Package - Garmin G3X Installation Manual

Perform the following steps and refer to
sensor.
1. EGT probes (Figure 14-5) should optimally be mounted between 2 and 4 inches from the cylinder
head on a flat portion of the exhaust tube. To maintain consistent readings across cylinders, all
probes should be mounted an equal distance from the exhaust flanges.
2. Carefully center punch the probe hole locations so that the external portion of the probe does not
interfere with any other parts of the engine or cowling
the probes towards the rear of the engine to allow efficient wire routing back to the cockpit. If
angling the probes towards the rear of the engine, take care to ensure that sufficient clearance is
provided to service the spark plugs.
3. Carefully insert probe into the exhaust pipe and tighten the clamp snugly with screwdriver (35 in-
lbs torque max.).
4. Connect the EGT probes to the thermocouple extension wire. Provide strain relief for the
assembly by either fastening the probe leads to the valve covers with a clamp, or by tying the
extension wire to the intake tubes or other suitable location. A finger-sized loop should be
provided to allow appropriate strain relief, and care should be taken to ensure that no chafing of
the wires occurs. See
G3X Installation Manual - Engine/Airframe Sensor Installation
Page 14-8
Figure 14-5,
Figure 14-7 for an example of an installed EGT probe.
Figure 14-5 EGT Package
Figure 14-6, and Figure 14-7
(Figure 14-6). It may be desirable to angle
to install an EGT
190-01115-01
Rev. L