CYLINDER BLOCK/CRANKCASE
Page 4B-30 90-857046R1 NOVEMBER 2001
Piston Installation
NOTE: Cylinder bores must be clean before installing pistons. Clean with light honing, as
necessary. After honing, clean cylinder bores with water and detergent. After cleaning, swab
cylinder bores several times with engine oil and a clean cloth, then wipe with a clean dry
cloth.
1. Lubricate pistons, rings. and cylinder walls with engine oil.
2. Install piston/connecting rod assembly using piston ring compressor tool.
NOTE: Install used pistons in their original locations(cylinders). Install piston with “UP” mark
on piston crown facing toward the flywheel end of block.
P/N FT2997
a
b
a-Piston Ring Compressor (FT2997)
b-Flywheel End
Crankshaft Installation
1. Lubricate the crankshaft bearing surfaces, connecting rod journals, and oil seal lips with
engine oil.
110
110
4-Stroke Outboard Oil
110
a
b
c
a-Upper Oil Seal
b-Lower Oil Seal
c-Crankshaft Bearing Surface
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