1995 Johnson/Evinrude Outboards 50 thru 70 3-cylinder Service Manual, Page 323Get this manual
e 1491 31Remove the high pressure port O-ring
1501 32Remove the trim-down relief valve and springr;:;-] 33Clean and inspect the components of the trim-down
pump relief valveReplace the rubber sealif necessaryThe seal can be easily removed from the valve with your fingernailPress new seal in place with the ridge facing out
1521 34Remove the spring from the expansion relief valve 153 35Remove the expansion relief valve core154 36Remove the expansion relief valve seat155 37Clean and inspect all the components of the expansion