Garmin G3X Installation Manual page 109

8.2.2.1 Lycoming and Continental Engine Installation
General Installation Guidance – To maintain measurement accuracy, thermocouple (TC) wire must be
connected directly to the inputs of the GSU 73. If the supplied sensor wires are not long enough to
connect directly to the GSU 73, then Type K TC extension wire must be used. To minimize risk of
breakage, it is recommended that a high-quality stranded (as opposed to solid) thermocouple wire be
used. One such example of appropriate wire is TT-K-22S Type K thermocouple wire from Omega
Engineering.
When using Alcor Type K probes, refer to Alcor CHT Installation Instructions (P/N 59167) for complete
installation details. Engine manufacturer's guidance should always be consulted for proper location of
CHT probes. As with the EGT probe installation, a finger sized loop should be provided to allow
sufficient strain relief of the probe assembly, and care should be taken to ensure that no chafing of the
wires occurs.
Figure 8-2. CHT Probe Package
Figure 8-3. CHT Probe Well
G3X Installation Manual – Engine Sensor Installation and Configuration Page 8-5
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