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
4-6
4-11. FUEL INJECTION SYSTEM (See Figures
4-1, 4-2 and 4-3).
a. Use the following basic procedure to disassemble the
fuel injection system on the IO-520 Series.
Disconnect:
1. Fuel discharge tubes and nozzles.
(a) Tubes at fuel manifold valve.
(b) Tube at nozzles.
(c) Clips at tube bracket.
(d) Nozzles at engine.
NOTE
Remove fuel injection connection
fittings from fuel injection components
only if necessary for replacement.
2. Fuel Hoses.
(a) Fuel pump to metering unit.
(1) Fuel hose to metering unit.
(2) Fuel pump return.
(b) Metering unit to fuel manifold valve.
3. Throttle body and metering unit from engine.
(a) Remove clamps etc. from intake manifold.
(b) Remove miscellaneous attaching parts.
4. Metering unit from throttle body.
(a) Remove linkage.
(b) Remove miscellaneous attaching parts and
shroud.
(c) Disassembly throttle body.
(1) Levers.
(2) Butterfly.
5. Fuel pump from engine.
(a) Shroud.
(b) Attaching parts.
(c) Coupling, gear and gasket.
6. Fuel manifold valve and bracket from engine.
(a) Attaching parts.
(b) Valve from bracket.
NOTE
Further disassembly of fuel injection
system components is not advised unless
proper test equipment is available.
For further information see Teledyne
Continental Fuel Injection System
Manual, Form X-30091.
4-12. MAGNETO AND ACCESSORY DRIVES (See
Figure 4-5).
a. Remove two sets of attaching parts (1, 2, 3) and six
sets of attaching parts (4, 5,6) and remove adapter
assembly (7) and related parts as a unit.
b. Remove gear assembly (18), magneto drive coupling
bushings (21) and retainer (22).
c. Remove attaching parts (8, 9, 10) and lift cover (11)
and gasket (12). Remove oil seal (14) from adapter
(17).
FIGURE 4-5. MAGNETO & ACCESSORY DRIVES.
1. Nut, Plain, Hex
2. Washer, Lock
3. Washer, Plain
4. Nut, Plain, Hex
5. Washer, Lock
6. Washer, Plain
7. Adapter Assembly
8. Nut, Plain, Hex
9. Washer, Lock
10. Washer, Plain
11. Cover, Accy. Drive
12. Gasket
13. Gasket
14. Seal, Oil
15. Bushing, Adapter
16. Stud
17. Adapter
18. Gear Assembly
19. Sleeve
20. Gear, Drive
21. Bushing
22. Retainer