2003 Johnson ST 6/8 HP 4 Stroke Outboards Service Manual, PN 5005471, Page 141Get this manual
POWERHEAD DISASSEMBLYHP Remove crankshaft seals and discard themRemove pistons from cylinder block by gently pushing on rod, forcing pistons outDo not allow rod to contact cylinder wall
1Crankshaft seals
41981 41985
Remove O-ring from crankshaft and discard it
Mark piston for location prior to removal from rod