1974 Johnson 135 HP Outboard Motors Service manual, Page 122Get this manual
9-10 TILT CYLINDER DISASSEMBLY
aHold cylinder in vise, using flats for lower pivot pin as clamping surfacesbCrack fitting for flexible line at top of cylinder approximately 1 turn (This eases emoval of end cap Using either 3 32" spanner wrench (Special Tool 1122728) or 532" spanner wrench (Special Tool fl22727)engage holes in end capHold wrench down tight against end cap and strike wrench end with mallet to loosen end capUnsc rew end capdRemove piston od assembly from cylinder using circular motion to work piston "0" rings past cylinder threadsDiscard "0" ring assembly on piston eClamp pis ton rod loop in vise, and move snap ring from piston using tru- arc pliersfPush elief valve assembly from piston using .090" dia dowel pin