1976 Evinrude 200 HP Outboards Service Manual, PN 5199, Page 86Get this manual
(5) FINAL CLEARANCE CHECK should be made after installation to insure that the minimum ring-togroove clearance of .0015" existsSuch can be done with feeler gage as shown in Figure 5-57NOTE Should clearance checking with feeler gage indicate that less than .0015" minimum clearance exists replace seal ring with next size smaller 1Seal rings are gauge fittedSee page 5-2263481
Figure 5-54Checking Fit of Ring in Crankshaft Groove
Figure 5-57Checking Minimum Ring-To-Groove Clearance With .0015" Feeler Gage (6) Repeat steps two (2) through five (5) for each successive empty groove until all grooves are filledMaximum allowable clearance (.0025") will not be exceeded as long as fitting is accomplished by working from the largest size to the smallest ring size(7) Following installation, lubricate each ring and groove liberally with oilCRANKSHAFT INSTALLATION