Standard Practices
Teledyne Continental Motors, Inc.
TM
C-6
IOF-240 Series Engine Maintenance Manual
29 November 2006
C-2.5. Mandatory Overhaul Replacement Parts
In addition to the previously listed items, the following parts must be discarded and
replaced with new parts during engine overhaul.
•
Hydraulic valve lifters (tappets)
•
Bearings: connecting rod, crankshaft main
and thrust, needle, ball, and roller
•
Bushings: rocker arm, connecting rod,
counter weight and crankshaft
counterweight blade
•
Counterweight pins, retaining plates and
snap rings
•
Connecting rod bolts and nuts
•
Connecting rod with beam width less than
.625 inches (TCM CSB96-13)
•
Camshaft gear bolts
•
Crankshaft gear bolts
•
Crankshaft alternator face gear bolts and
lock plates
•
Woodruff keys
•
Magneto drive rubber bushings
•
Exhaust valves
•
Exhaust valve rotocoils
•
Intake valve rotocoils with solid valve
retainers part # 35971
•
Intake and exhaust valve keepers
•
Inner and outer valve springs
•
Piston pins
•
Piston rings
•
Pistons
•
Rocker shafts
•
Rockers shaft thrust washers
•
Crankcase Through Bolts
•
Cylinder deck stud nuts and through bolt nuts
•
Exhaust clamps (Turbocharged engines)
•
Cold Start primer diverter valves
•
Fuel pump drive coupling P/N 631263 with P/N
653359 (TCM MSB 95-6 or latest revision )
•
Electronic Control Units
•
All FADEC sensors
•
Engine Low Voltage Harness
•
Ignition System Harness
C-2.6. Authorized Oversize/Undersize Parts
Replacement authorized oversize (AO) or authorized undersize (AU) parts must be used
with the proper AO and AU mating parts. Example: Use 0.015 oversize piston and piston
rings with 0.015 oversize cylinder assemblies.
C-3.
Torque
Torque hardware with calibrated torque wrenches according to the specifications in
Appendix B in this manual.
