1978 Johnson 55 HP Outboards Service Manual, Page 91Get this manual
gDRIVESHAFT BEARINGIf removed, use bearing remover (Special Tool #387131) and bearing installer (Special Tool #320671) and an arbor pressSee Figure 6-43Tool presses against inner race and will seat bearing on shoulder on driveshaft 2With driveshaft seated in gauge, if shimming is correct, bottom end of gauge should just touch top of pinion gearSelect shims as necessary to establish zero clearance and set them asideRemove pinion nut, gear, and driveshaftiInstall propeller shaft, forward gear and shift mechanism in gearcaseBe sure alignment pin in forward bearing housing engages hole in gearcaseSee Figure 6-45
Be sure drain plug and magnet assembly is removed or magnet will be broken off when installing forward gear and bearing housing
Figure 6-43Installing Driveshaft Bearing
hGAUGING DRIVESHAFT BEARING CLEARANCEThe driveshaft pinion gear is precisely meshed with the forward and reverse gears by the use of shim or shims between the driveshaft bearing and driveshaft seal housingWhen installing new bearing and cone assembly, it will be necessary to gauge and select the proper shims to restore factory clearanceUsing shim gauge (Special Tool #320739) locate driveshaft in gauge and install pinion gearSee Figure 6-44Torque nut to speCifications, Section