Table of Contents
Advertisement
TEO-540-A1A Engine Installation and Operation Manual
11. Pre-oil start cycle: Energize the starter for 10 to 15 seconds and look for evidence of oil
pressure of at least 20 psi (138 kPa) within 10 to 15 seconds.
If there is no oil pressure within 10 to 15 seconds, stop energizing the starter. Wait at least 30
seconds and repeat the pre-oil start cycle.
Up to six consecutive pre-oil start cycles can be done. Afterwards let the starter cool for 30
minutes. If stable oil pressure is not achieved, stop pre-oiling and contact Lycoming Engines.
NOTICE: Unstable oil pressure or oil pressure less than 20 psi (138 kPa) could be an
indication of obstructed or interrupted oil flow or air in the oil lines. Lack of
pressure build-up or rapid drop-off of pressure is an indication of the presence of air
in the line and the engine is not getting oil. To correct this problem, disconnect the
inlet lines at the turbocharger and exhaust valve guide oil. Turn the starter again
until oil pressure is shown.
12. If oil pressure of at least 20 psi (138 kPa) was sustained in the previous step, repeat the pre-
oil start cycle to make sure oil pressure holds stable and that there is no sudden drop in oil
pressure. If oil pressure is not stable or drops suddenly, stop pre-oiling, and contact
Lycoming Engines.
NOTICE: A new spark plug gasket must be installed whether a new or acceptable re-used
spark plug is to be installed.
13. Once the minimum oil pressure of 20 psi (138 kPa) is shown on the oil pressure gauge, re-
install the spark plugs each with a new gasket, and connect the ignition leads to all spark
plugs per instructions in Chapter 74-20 of the TEO-540-A1A Engine Maintenance Manual.
14. Within 3 hours of completing the pre-oil procedure, complete the remaining steps in this
chapter, then start and operate the engine for 3 minutes at approximately 1000 rpm.
Step 17. Add Fuel
WARNING DO NOT USE A LOWER OCTANE OR INCORRECT GRADE OR TYPE OF
FUEL (DIFFERENT FROM FUEL IDENTIFIED IN APPENDIX A). USE OF
INCORRECT FUEL CAN LEAD TO DETONATION, POWER LOSS, AND
ENGINE DAMAGE.
Add the fuel identified in Appendix A to the aircraft.
Step 18. Make RPM Measurements
1. There is no provision for a mechanical tachometer drive.
2. The airframe manufacturer must calibrate the engine speed (rpm) measurement.
Step 19. Final Installation Inspection
Complete the Engine Installation Checklist at the end of this chapter.
Step 20. Close Engine Compartment
1. Make sure that there are no tools or unwanted materials in the engine or engine nacelle or
compartment.
2. Install all cowling and nacelle access panels to close the engine compartment securely. Refer
to the airframe manufacturer's instructions and specified torque values.
© 2018 Avco Corporation. All Rights Reserved
October 2018
Engine Installation
Page 41
Advertisement
Table of Contents
