Electronics International UBG-16 User Manual

Page 12

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LYCOMING

IO 320, IO 360 and IO 540

Remove the 5/8" - 18 plug located on the rear engine accessory case above and forward of the oil filter
adaptor or oil screen as applicable. Install E.I.’s P-120 Oil Probe with a new oil seal and torque to
Lycoming’s specifications. Check for oil leaks after the first flight.

All Other Engines

Equipped with a 5/8"-18 Secondary Oil Drain Plug

Remove the 5/8"-18 Secondary oil drain plug located on the bottom of the engine. Install E.I.’s P-120 Oil
Probe with a new oil seal and torque to specifications. Check for oil leaks after the first flight.

If another location is used to measure oil temperature, make sure the probe does not interfere with the
operation of the engine.

9. Carb T

Carb T

Carb Temp Probe Installation:

emp Probe Installation:

Remove the threaded plug located in the carburetor housing just below the throttle valve. Install the Carbure-
tor Temperature Probe (P-128) in this hole using a lock washer. Care should be taken not to over-tighten the
probe and strip the threads in the carburetor housing.

NOTE: A Carb Temp Probe should be connected to a precision channel on the UBG. That would be
channel 7 or 8 on the left and right Circular Connector. A three to four degree F error can occur in some
instances if the Carburetor Probe is not connected to a precision channel.

10.

10. OA

OAT Probe Installation:

T Probe Installation:

Mount the OAT Probe in an appropriate location on the aircraft, using the hardware supplied. The OAT
Probe is sensitive to air temperature changes. For this reason, do not mount the OAT probe in the path of the
cowl or engine exiting air (i.e., on the belly of the aircraft). Also, if the probe is mounted in the cowling area
near a turbo or hot cylinder head, radiant heat may influence the probe temperature. Other than these
consideration the OAT Probe may be mounted in an air intake vent, on the side of the cowling or anywhere
else on the aircraft.

NOTE: An OAT Probe should be connected to a precision channel on the UBG. That would be channel 7
or 8 on the left and right Circular Connector. A three to four degree F error can occur in some instances if
the OAT Probe is not connected to a precision channel.

11.

11. Other T

Other T

Other Temperature Probe Installation:

emperature Probe Installation:

Other temperature probes (Cowl Temp, CDI Temp, Water Temp, etc.) may be installed using current aircraft
standards and practices (refer to AC 43.13). Make sure these probes do not interfere with the operation of
the engine or aircraft.

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