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

4-8
FIGURE 4-6. INDUCTION SYSTEM. (A,B,C,F,J,K & L)
1. Clamp, Hose 20. Tube Assembly 39. Bushing
2. Clamp Assembly 21. Gasket 40. Sleeve
3. Hose, Intake Manifold 22. Plug, Pipe 41. Throttle Assembly, Air
4. Hose 23. Screw 42. Nut, Self-Locking
5. Tube Assy., Elbow, 2-4-6 Side 24. Washer, Lock 43. Bolt
6. Tube Assy., Elbow, 1-3-5 Side 25. Nut, Plain, Hex 44. Nut, Plain, Hex
7. Manifold Assembly 26. Washer, Lock 45. Washer, Lock
8. Bolt 27. Screw 46. Nut, Plain, Hex
9. Washer, Lock 28. Nut, Plain, Hex 47. Washer, Lock
10. Bracket 29. Washer, Lock 48. Bracket Assembly
11. Clamp 30. Washer, Plain 49. Bracket
12. Clamp 31. Nut, Self Locking 50. Bracket
13. Tube Assembly, Balance 32. Bolt 51. Bracket Assembly
14. Clamp, Hose 33. Nut, Plain, Hex 52. Bushing
15. Hose 34. Washer, Lock 53. Bushing
16. Screw 35. Washer, Plain 54. Sleeve
17. Washer, Lock 36. Bracket 55. Sleeve
18. Washer, Plain 37. Bracket 56. Gasket
19. Tube Assembly 38. Bracket