1996 Johnson Evinrude "ED" 60 LV 90, 115, 150, 150C, 175 Service Manual, P/N 507127, Page 148Get this manual
151 7Measure each cylinder in at least two areas as shownEach The cylinder must not be out-of-round by more than 0.004 in(0,10 mm)
area should be measured twiceThe difference between the two measurements in each area is the cylinder out-of-round dimension
151 8The dimension difference between the two areas is cylinder
taper The cylinder taper must not exceed 0.002 in(0,05 mm)DR3482
151 9The
your .measurements and standard bore dimension IS cylinder oversizeRefer to Engine Specifications, Section 1, for dimensions The cylinder must not be oversized by more than 0.004 in(0,10 mm)If any cylinder is outside these tolerances, it must be bored oversizeIt is permissible to have one or more oversize pistons in an engineRefer to Engine Specifications, Section 1
f61 10Use micrometer to check piston conditionMake at least E.I two measurements, 90 from each otherMeasure the piston
diameter 1f4 in (6,4 mm) above the bottom edge ofthe piston skirt The difference between the two piston measurements must not exceed 0.003 in(0,08 mm)I,l 11For the new ring sets, make the following inspectionsLZ.J Place each ring, separately, in its respective boreUse piston to square the ring in the cylinderUse feeler gauge to measure the ring end gap