1970 Johnson 115 HP Outboard Motor Service manual, Page 78Get this manual
bThe driveshaft pinion gear is precisely meshed with the forward and reverse gears by the use of shim or shims between the driveshaft thrust bearing, thrust washer and driveshaft bearing housingTo select the proper shimming, assemble pinion gear to driveshaft and torque nut to 60-65 foot-pounds Remove thrust washer and bearingPlace shims removed during disassembly on driveshaft shoulder Using shim gauge, OMC Special Tool 13 15767, measure clearance between bottom of gauge and pinion gearSee Figure 6- 35U shimming is correct, bottom end of gauge should just touch top of pinion gearAdd or remove shims as necessary to make this clearanceSee Figure 6- 35Carefully set aside the cor rect shims selecteddRemove pinion gear from driveshafte Install forward gear, thrust bearing and thrust washers using needle bearing grease to hold them in placeSee Figure 6-23 (o requl.ed)
DRIVESHAFT
rInstall driveshart in gearcaseSecure pinion gear to driveshaft with pinion nut using driveshalt holding socket 13 127 52 and torque wrenchTorque nut to 60- 65 footpoundsgU removed, install clutch dog on propeller shaltSee Figures 6-36 and 6-37 NOTE: Three ramp side must face forward end of gearcaseCompress spring and insert pin through clutch dog retainerSecure pin with coil spring in groove around clutch dogSee Figures 6- 36 and 6-37