Teledyne Continental Motors, Inc.
TM
Maintenance
Inspections
IOF-240 Series Engine Maintenance Manual
7-1
31 August 2007
Change 1
Chapter 7.
MAINTENANCE INSPECTIONS
CONTENTS
Chapter 7. Maintenance Inspections........................................................................................ 7-1
7-1. Inspection Program Introduction .......................................................................................... 7-3
7-2. Inspection and Maintenance Schedule ................................................................................. 7-3
7-3. Scheduled Inspections .......................................................................................................... 7-3
7-3.2. 25-Hour Initial Operation Inspection......................................................................................................... 7-5
7-3.3. 50-Hour Engine Inspection........................................................................................................................ 7-6
7-3.4. 100-Hour (Annual) Engine Inspection ...................................................................................................... 7-7
7-3.6. Visual Inspection ....................................................................................................................................... 7-8
7-3.7. Cylinder Inspections ................................................................................................................................ 7-10
7-3.8. Crankcase Inspection ............................................................................................................................... 7-36
7-3.9. Induction System Inspection.................................................................................................................... 7-38
7-3.10. Ignition System Inspection .................................................................................................................... 7-38
7-3.14. Engine Control Linkage Inspection ....................................................................................................... 7-44
7-3.17. Alternator Inspection ............................................................................................................................. 7-46
7-4. Unscheduled Maintenance.................................................................................................. 7-48
7-4.1. Propeller Strike ........................................................................................................................................ 7-48
7-4.2. Propeller Strike Inspection ...................................................................................................................... 7-48
7-4.3. Hydraulic Lock ........................................................................................................................................ 7-49
7-4.4. Engine Overspeed.................................................................................................................................... 7-50
7-4.5. Lightning Strike....................................................................................................................................... 7-51
7-4.6. Contaminated Fuel System ...................................................................................................................... 7-52
7-4.7. Abnormal Ferrous Material in Oil Analysis ............................................................................................ 7-52
7-4.8. Excessive or Abnormal Engine Noise ..................................................................................................... 7-52
7-5. Inspection Checklists.......................................................................................................... 7-52
LIST OF TABLES
Table 7-1. Engine Inspection and Maintenance Schedule ........................................................... 7-4
Table 7-2. Cylinder Inspection Tasks and References............................................................... 7-10
Table 7-3. Differential Pressure Test Results ............................................................................ 7-20
Table 7-4. Summary of Seal Checks and Corrective Actions ................................................... 7-25
Table 7-5. Borescope Inspection Objectives and Corrective Action Table............................... 7-27
Table 7-6. 25-Hour Initial Operation Inspection Checklist ....................................................... 7-53
Table 7-7. 50-Hour Engine Inspection Checklist ...................................................................... 7-55
Table 7-8. 100-Hour Engine Inspection Checklist .................................................................... 7-57
Table 7-9. 500-Hour Engine Inspection Checklist .................................................................... 7-59
Table 7-10. Cylinder Inspection Checklist ................................................................................ 7-61