8.1
Section 8
Disassembly
8
Section 8
Disassembly
WARNING: Accidental Starts!
Disabling engine. Accidental starting can cause severe injury or death. Before working on the engine or equipment,
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21. Remove camsha and valve tappets.
22. Remove governor cross sha
23. Remove connecting rods with pistons and rings.
24. Remove cranksha.
25. Remove inner breather assembly.
26. Remove flywheel and PTO end oil seals.
Disconnect Spark Plug Leads
1. Disconnect the leads from the spark plugs. See
Figure 8-1.
NOTE: Pull on boot only, to prevent damage to
spark plug lead.
Clean all parts thoroughly as the engine is
disassembled. Only clean parts can be accurately
inspected and gauged for wear or damage. There
are many commercially available cleaners that will
quickly remove grease, oil and grime from engine
parts. When such a cleaner is used, follow the
manufacturer’s instructions and safety precautions
carefully.
Make sure all traces of the cleaner are removed before
the engine is reassembled and placed into operation.
Even small amounts of these cleaners can quickly
break down the lubricating properties of engine oil.
Typical Disassembly Sequence
The following sequence is suggested for complete
engine disassembly. The sequence can be varied to
accommodate options or special equipment.
1. Disconnect spark plug leads.
2. Shut off fuel supply.
3. Drain oil from crankcase and remove oil filter.
4. Remove adapter and oil cooler (if equipped).
5. Remove muffler.
6. Remove fuel pump.
7. Remove blower housing and outer baffles.
8. Remove throle controls.
9. Remove external governor controls.
10. Remove air cleaner and carburetor.
11. Remove electric starter.
12. Remove inner baffles.
13. Remove ignition modules.
14. Remove intake manifold and rectifier-regulator.
15. Remove spark plugs.
16. Remove valve covers and cylinder heads.
17. Remove grass screen, fan, and flywheel.
18. Remove backing plate and stator.
19. Remove outer breather assembly.
20. Remove oil pan assembly.
Figure 8-1. Disconnect Spark Plug Leads.
Shut Off Fuel Supply
Drain Oil From Crankcase and Remove Oil
Filter
1. Remove oil fill cap/dipstick and the oil drain
plug.
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