Preliminary Instructions
Prior to starting any repair or maintenance operation.
Make sure you are familiar withALL safety warnings and
procedures as outlined in SECTION 1 - SAFETY AND
GENERAL INFORMATION - Safety Information.
ALWAYS wear safety glasses and gloves while performing
any maintenance and repair operation.
BOTOM END ASSEMBLY
Bottom End Assembly
1. Apply a thin film of clean engine oil to MAG bearing oil
seal lip.
2. Verify end play shims are installed on crankshaft, if used.
3. Thoroughly lubricate crankshaft MAG bearing journal and
PTO bearing journal with clean engine oil.
4. Lubricate crank pin with General Lithium Grease.
5. Install oil seal protector sleeve over crankshaft taper.
NOTE: Use black electrical tape if oil seal protector sleeve is
not available.
6. Carefully install crankshaft into crankcase positioning
MAG bearing journal in MAG bearing.
7. Remove oil seal protector sleeve (or black electrical tape)
from crankshaft taper.
8. Rotate crankshaft until crank pin journal is at the bottom
of its stroke.
9. Verify that piston ring end gaps are properly staggered.
See SECTION 6 - SERVICE ENGINE SUBASSEMBLIES
- PISTON AND CONNECTING ROD - Assembly.
10. Start piston/connecting rod assembly into bore of cylinder
1, so that the rod stamp OUT-1 is visible through the
crankcase cover opening (A, Figure 147).
147
NOTE: While the crankcase is stamped with the numbers
1 and 2 to identify cylinder location, it may be easier to
remember that cylinder 1 is always on the starter motor
mount side.
119
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