1991 Johnson/Evinrude EI 60 thru 70 outboards Service Manual, Page 210Get this manual
Driveshaft Shimming Using Tool, PIN 393185 The driveshaft pinion is precisely meshed with the forward and reverse gears by using shim or shims between the driveshaft bearing housing and the thrust washerWhen installing new thrust bearing or washer, bearing housing, pinion or driveshaft, it is necessary to properly shim the assembly to restore factory clearanceGauge bars are precision made and should be handled carefullyThe length of each bar is stamped near the part numberThis dimension is 0.020 in(0,508 mm) shorter than the actual shimmed length of the driveshaft I I
INotel Degrease pinion and driveshaft tapers prior to assembly138 1Install the pinion onto the driveshaftTighten the pinion nut to torque of 40-45 ftIbs(54-60 Nm) 1381 2Assemble the driveshaft bearing housingthrust washer