1996 Johnson Evinrude "ED" 40 thru 55 2-Cylinder Service Manual, P/N 507124, Page 213Get this manual
1431 2Slide the Collar, PIN 334985from OMC Driveshaft Shim Kit, PIN 433032, onto the driveshaft with large end touching the bearing housing431 3Insert the assembled driveshaft into the tool base1441 4Tighten preload screw against the driveshaft until groove on the spring-loaded plunger is flush with end of threadsTighten lock ring on preload screw 5Rotate the driveshaft several revolutions to seat bearings1451 6Position Shim Gauge, PIN 334984from OMC Driveshaft Shim Kit, PIN 433032, against guide pins of the tool base1461 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)1471 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 gear set or the driveshaft, as necessary, and repeat the check if variance exceeds 0.002 in(0,050 mm)9Subtract the average clearance measurement obtained in Step from 0.030 in(0,762 mm) to determine the correct shim thickness requiredSelect fewest number of shims to achieve correct thickness