1994 Johnson/Evinrude "ER" 60 thru 70 outboards Service Manual, Page 315Get this manual
f1319When servicing either cylinder, mount the bottom part of the cylinder in soft-jaw viseIf equipped, remove the band nut and slide the band off the cylinder114110Inspect the band nut O-ringReplace the O-ring if necessaryr,5l11Using either OMC Tilt Cylinder End Cap Remover, PIN 326485, or OMC Universal Spanner Wrench, PIN 912084, and breaker bar, remove the tilt cylinder end capOnce the threads are completely disengaged, slide the tilt cylinder rod and piston out of the cylinderr:J6l12The Presto lite piston and rod assembly is shown at the top of the figureThe Showa piston and rod assembly is shown at the bottom of the figure117113Inspect the bore of the tilt cylinder for excessive scoringReplace the tilt cylinder if excessive scoring is present14Service the Showa piston and rod assembly as follows: Using OMC Hydraulic Cylinder Rod Holder, PIN 983213, clamp the rod tightly in viseRemove the nut and washer from the piston end of the rodthe four valve assemblies which consist of springplungerand check ball Three of the four springs are one length, and the fourth spring is another lengthOn reassembly, these springs can be put in any positionInspect the outer O-ring from the piston and the O-ring that was around the rodReplace the O-rings if necessaryReassemble the piston by placing one ball, one plunger, and one spring in each of the four holes in the pistonPlace the outside O-ring on the piston9-58