1997 Johnson Evinrude "EU" Accessories Service Manual, P/N 507270, Page 144Get this manual
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19Remove the trim-up relief valve core and spring
20Remove the trim-up relief valve seat from the manifold using Snap-on pliers SPR3 or equivalent21Clean and inspect all the components ofthe trim-up relief valve22Remove the three large electric motor retaining screws Remove the electric motor from the manifold
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and washers
23There are four types of permanent magnet electric motors on the power trimtilt unitAll motors have an O-ring on the base which needs to be inspected upon disassemblyAny of these motors may be used for replacement, but internal components may not be interchangedSet the motor aside until disassembly is required24Remove the oil pump filter by simultaneously pressing the filter sideways while prying the tab out of the pocket in the manifoldClean the oil pump filter carefully25There are three screws that retain the oil pump to the manifoldTwo of them are recessed Allen head cap screwsand one is hex head screw Remove the three screws and oil pump assembly If the oil pump needs flushing, do not clean it in solvent but only in new, clean hydraulic fluidRotate the pump coupling to expel any foreign matter