1993 Johnson Evinrude "ET" 2 thru 8 Service Manual, P/N 508281, Page 152Get this manual
InspectionAll Models 1Before any inspection process can begin, all internal compo-
nents must be clean and free of excess oilRefer to Cleaning, this Section2Make visual inspection of all internal componentsCheck for unusual wear patterns, scuffing or deterioration of aluminum parts, heat-related discoloration of bearings or bearing surfaces, and broken components
thruThe metering rods must be in place in the
crankcasePlace the long rod in the upper hole and the short rod in the lower hole
3Check for cylinder head warpage using piece of bar stock or machinist's straightedge and feeler gauge set Cylinder head warpage must not exceed 0.004 in(0,10 mm) end to endResurface or replace head if warpage exceeds this dimension4Use micrometer to measure the diameter of each crankpin and main bearing journalThe lower main bearing journal would only be measured if the bearing was removed for another reasonRefer to Engine Specifications, Section 1, for dimensions