1974 Johnson 135 HP Outboard Motors Service manual, Page 84Get this manual
6-14 bDiscard all oil seals, "0" rings, and gasketsIf damaged remove and discard the upper pinion bearing, the upper driveshact bearing, and the propeller shaft housing bearingscExamine the rubber motor mounts and replace if deteriorated or damageddInspect driveshaft splines for wear lower unit bent Crom striking submerged obstruction can cause extensive damage to driveshaft splinesReplace shaft iC worneInspect propeller Cor nicks, broken blades, and cracksDO NOT attempt to weld cracked or broken propellersRemove minor nicks with fileNote that he aft side of the propeller is flat while the other side is roundedFile blades accordingly to etain shape If blades are bent, cracked or badly chipped, replace propelle rFigure 6-29Checking Parallelism of Exhaust Housing fInspect gearcase for nicks on the machined surfaces Remove nicks and re-su.rface faces on surface plateStart with Number 120 emery cloth and finish with Number 180 emery clothRe-surface and inspect outer exhaust housing in like mannerReplace if bentCheck parallelism on plate with surface gage and scriberA drill press table will also serveUSing the spindle as gageSee Figure 6-2900 NOT attempt to straighten if bent, replace itO NOTE