1998 Johnson Evinrude "EC" 40 thru 55 2-Cylinder Service Manual, P/N 520206, Page 232Get this manual
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4Insert the assembled driveshaft into the tool base and tighten preload screw CD against the driveshaft until groove Q) on the spring-loaded plunger is flush with end of threadsTighten locking ring on preload screw5Rotate the driveshaft several revolutions to seat bearing
6Position Shim Gauge, PI 328366against guide pins of the tool base
7Check the squareness of the bearing housing mounting surface by holding the gauge bar against the pinion while rotating just the bearing housing and measuring the clearance between the gauge bar and bearing housing with feeler gaugesMake measurements between each pair of screw holesReplace the bearing housing and repeat check if variance exceeds 0.004 in(0,10 mm)
8Check the squareness of the pinion to the driveshaft by holding the gauge bar against the bearing housing (between the screw holes) while rotating just the driveshaft and pinion assembly and measuring the clearance between the gauge bar and the pinionReplace the pinion or the driveshaft, as necessary, and repeat the check if variance exceeds 0.002 in(0,050 mm)