1998 Johnson Evinrude "EC" Accessories Service Manual, P/N 520213, Page 147Get this manual
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47Remove and discard the seals from the trim pistonsCarefully clean the trim pistons and rods and install new seals
48Using OMC Trim Sleeve Remover, PIN 325065, pry the trim sleeves from the manifoldWhen removing, rock the sleeve back and fort with your fingers while prying with the tool49Inspect the cylinder bore of each of the sleeves for scoringReplace the sleeves if scuffed or grooved43101
50Remove the seals from both trim sleevesClean the sleevesOil new seals and install on the sleeves, as shown
51Remove the manifold from the holding fixture and clean the manifold thoroughly in fresh solventBlow excess solvent from the internal passages with compressed airIt is essential that the manifold and all components be kept absolutely clean and dust freeAny dirt in the system could cause scoring of cylinder bores, sticking of valves, or damage to pump componentsAssembly