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The following sequence is suggested for complete
engine reassembly. This procedure assumes that all
components are new or have been reconditioned, and
all component subassembly work has been completed.
This procedure may be varied to accommodate
options or special equipment.
NOTE: Make sure the engine is assembled using all
specified torque values, tightening sequences,
and clearances. Failure to observe
specifications could cause severe engine wear
or damage.
NOTE: Always use new gaskets.
Typical Reassembly Sequence
1. Install governor gear and cross shaft.
2. Install crankshaft.
3. Install piston rings.
4. Assemble piston to connecting rod.
5. Install piston and connecting rod.
6. Install balance shaft.
7. Install hydraulic lifters and camshaft.
8. Check camshaft end play.
9. Install closure plate.
10. Install oil pump.
11. Install oil seal (PTO and Flywheel End).
12. Install stator and wiring harness.
13. Install flywheel, fan, grass screen and drive cup.
14. Install fuel line.
15. Install ignition module.
16. Assemble and install cylinder head.
17. Install carburetor adapter and heat deflector.
18. Install baffles and blower housing.
19. Install valve cover and muffler bracket.
20. Install fuel pump.
21. Install electric starter.
22. Install fuel tank.
23. Install rectifier-regulator.
24. Install carburetor and external governor
components.
25. Install throttle bracket.
26. Install air cleaner base, air intake system, adjust
governor lever.
Section 11
Reassembly
27. Install retractable starter.
28. Install muffler.
29. Prepare engine for operation.
30. Test engine.
Install Governor Gear and Cross Shaft
NOTE: Reuse of an old (removed) governor gear is
1. Install the thrust washer to governor gear shaft.
2. Position the regulating pin to governor gear/
flyweights as shown in Figure 11-1. Slide the
governor gear/regulating pin over the governor
gear shaft.
Figure 11-1. Installing Governor Gear.
not recommended.
Section 11
Reassembly
Regulating
Pin
Governor
Gear
Thrust
Washer
11
11.1
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