Operating instructions
Table Of Contents
- 1 Introduction
- 2 General Description
- 3 Special Tools and Equipment
- 4 Disassembly
- 5 Cleaning, Repair and Replacement
- 6 Inspection
- Definitions
- Magnetic Particle Inspection
- Critical New Part Dimensions
- Fluorescent Particle Inspection
- Dimensional Inspection
- Protective Coatings
- Crankcase Inspection
- Crankshaft Inspection
- Camshaft Inspection
- Connecting Rod Inspection
- Gear Inspection
- Piston Inspection
- Cylinder Inspection
- Inspection Chart
- Crankcase Stud Heights
- Mag Particle Inspection Procedures
- Table of Limits
- Torque Specifications
- General Torques
- Table of Limits Chart
- 7 Assembly of Subassemblies
- 8 Final Assembly and Test
- 9 IO-520-M
- 10 IO-520-BB, CB and MB
6-16
SUBASSEMBLY
AND PART
INSPECT NATURE OF INSPECTION
SPECIAL
CONSIDERATIONS
MAGNETO AND
ACCESSORY DRIVE
ASSEMBLY
Adapter Gear Bushing Measure bore diameter. Refer to Table of Limits.
Oil Seal Observe that old seal has
been removed without
damage to casting bore.
Studs Look for stripped and
deformed threads.
Gear Teeth Scoring, burning or wear
enough to alter tooth profile.
Shaft Measure diameters and
compare with bushing
diameter.
Refer to Table of Limits.