Teledyne Continental Motors, Inc.
TM
Operational Performance Checks
6-1.2.2. Engine Operational Check with Calibrated Gauges Setup
CAUTION: Calibrated Gauges may be used to check and adjust the
fuel system pressures after replacement of fuel injection system
parts. For Engine Operational Checks following replacement of
FADEC system parts, follow the steps in section 6-1.2.1, “Engine
Operational Check with FADEC System Setup” to prepare the
engine for the Engine Operational Check.
Required Equipment:
•
A currently calibrated 0-100 psi gauge (graduated in 1 psi increments).
•
A test hose of the same inside diameter as the engine fuel hose inside diameter.
•
Swivel tee connector.
Procedure
1.
Remove the aircraft cowling according to the aircraft manufacturer's instructions.
2.
Disconnect the fuel line from the fuel inlet to the fuel distribution block.
3.
Connect and torque a swivel tee connector to the fuel inlet of the fuel distribution
block.
4.
Connect and torque the fuel line to the straight end of the swivel tee connector.
5.
Connect and torque the test hose to the 90-degree input to the swivel tee and torque.
6.
Connect the 0-100 psi gauge to the swivel tee using a hose long enough to provide
proper clearance from the engine cowling and propeller arc. Torque all connections.
Refer to Figure 6-3.
7.
Operate the aircraft boost pump in accordance with the Aircraft POH procedures.
8.
Loosen the test hose connection to the 0-100 psi gauge to bleed the lines of air.
9.
Position and maintain the gauge height at or slightly above the height of the fuel
system components during the bleeding operation.
10.
Operate the boost pump only long enough to purge the air from the installed test
equipment.
11.
Verify all fuel lines, hoses and fittings are secured and torqued and no fuel leaks exist
before proceeding.
12.
Route test hoses clear of the exhaust system and support their entire length to avoid
inaccurate gauge readings.
WARNING
Prior to starting the engine, drain the fuel from the Induction
System. Failure to do so could cause hydraulic lock and
subsequent engine failure. Refer to the “Hydraulic Lock”
section in Chapter 7 of the Installation and Operation Manual
(OI-22) for more details. Block the aircraft wheels and set the
parking brake.
IOF-240 Series Engine Maintenance Manual
6-5
13.
Proceed with the operational checkout instructions in Section 6-1.3.
31 August 2007
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