1992 Johnson Evinrude "EN" 40 thru 55 Service Manual, P/N 508143, Page 235Get this manual
13811391 the assembled driveshaft into the tool base and tighten preload screw Q) against the driveshaft until groove Q) on the spring-loaded plunger is flush with end of threadsTighten locking ring on preload screw 5Rotate the driveshaft several revolutions to seat bearing1401 6Position Shim Gauge PI 328366 the tool base
against guide pins of
7Check the squareness ofthe 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) .1411 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)