2006 Johnson SD 30 HP 4 Stroke Outboards Service Manual, PN 5006592, Page 167Get this manual
POWERHEAD PISTON, CYLINDER, AND CRANKSHAFT If removed, install the crankshaft main bearingsApply engine oil to the bearing wear surfacesDO NOT apply oil between the bearing holder and the back of the bearing
IMPORTANT: The oil groove sides of the thrust bearing must face toward the crank webs
1212Upper bearing shells Lower bearing shells
Thrust bearing Oil grooves
IMPORTANT: Make sure that the bearing tab is aligned with the notches in the cylinder and the crankcase
Apply engine oil to the lip of new upper oil sealInstall the upper oil seal to the crankshaftMake sure that the lip of the seal is facing inwardApply engine oil to the crank pin and the crankshaft main journalInstall the crankshaft in the cylinder1Bearing tab