1992 Johnson Evinrude "EN" 40 thru 55 Service Manual, P/N 508143, Page 89Get this manual
Disassembly All screws addressed in this procedure are No15 Torx i when removing screws and releasing that pressure
'" The air motor cover is under spring pressureUse caution
LJ holding
r:;-] With No15 Torx screwdriver, remove the Torx screws the air motor coverTo control the spring pressure, place pump on your bench with the air motor cover facing upwardHold down on cover while removing screws
Set cover, screws, O-ring, and two springs aside
r:;J Remove the Torx screws attaching the inlet housing to the intermediate housing and separate these partsAs you lift the inlet housing, the oil piston will be drawn out of the oil pump