1970 Johnson 115 HP Outboard Motor Service manual, Page 76Get this manual
cRemove reverse valve lever (leve with hole in it) by driving out pinSee Figure 6-30Remove pin, valve, arm and ball check valvesSee Figur 6- 31d Inspect balls and seats Cor nicks or grooves Replace if out of round, nicked or gr ooved
CLEANING, INSPECTION AND REPAIR
aClean all parts with cleaning solvent such as solvasol and dr with compressed airbDiscard all oil seals" 0" rings, and gasket sU damaged remove and discard the upper pinion bearing, the upper driveshaft bearing, and the propeller halt hous ing bearingscExamine the rubber motor moW'lts and replace if deteriorated or damageddInspect driveshaft splines for wearA lower W'lit bent from triking submerged obstruction can cause extensive damage to driveshaft splinesReplace haft if worneInspect propeller for nicks, broken bladesand racksDO NOT attempt to weld racked or broken propellersRemove minor nicks with fileNote that the aft ide of the propelle is flat while the othe ide is rOW'ldedFile blades accordingly to retain shapeIf blades are bent, cracked or badly chippedreplace propellerfInspect gearcas Cor nicks on the machined surfacesRemove nicks and e-surCace faces on urface plateStart with Number 120 mery cloth and finish with Numbe 180 emery clothReurface and inspect oute exhaust housing in like mannerReplace if bentChec parallelism on plate with surface gage and scriberA drill press table will also serveus ing the spindle as gageSee Figure 6- 32DO NOT attempt to traighten if bent, replace itNOTE bent exhaust housing will cause uppe driveshaft splines to wear excessively, and will also damage crankshaft splinesgInspect water tubes for obstructions or kinks which may estrict water flowhInspect water pump impeller and eplace if vanes are damaged or worn InSIE!ct pump housing for scoring and replace if damagedInspect impeller housing plate and re place if scored or pitted iCheck water intake screen and clean if pluggedlEVER-:j HOLE BAll VALVES