TOHATSU 40 Service Manual page 110

SECTION 4
Insert bearing (15) into bearing collar of connecting rod (16).
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Correctly position piston (17) onto the connecting rod.
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Insert bearing washer (18) on each side of the connecting
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rod (models 80, 90, 115, 120 and 140).
Align components so piston pin hole is not obstructed and
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install piston pin (19) using piston pin tool.
Install new piston pin clips (20). Do not reuse old clips.
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Cylinder Block and Crankcase
7. Install the oil pump driven gear and bushing in the cylinder block.
8. Coatthe pistons, rings, cylinder walls, and oil pump drive gear and
driven gear with genuine engine oil or TC-W3 oil. Install the bearing
washers or thrust plates (models 40 and 50) and lower crankshaft
assembly into cylinder block, guiding each piston into its respective
cylinder. Ensure the following:
Dowel pin (21) in cylinder block is inserted in the hole in the
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upper main bearing.
All main bearing nocks (22) are seated against the
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crankcase mating flange of the cylinder block for proper
alignment with the crankcase.
• Oil pump drive gear on crankshaft is meshed with the oil pump
driven gear.
• Bearing washers or thrust plates (models 40 and 50) are seated
properly in the cylinder block.
4-36
T1241
T1243
T1244
3-/ 4-Cylinder