1965 Evinrude 90 HP StarFlite Service Manual, PN 4206, Page 69Get this manual
cInspect driveshaft splines for wear lower unit bent from striking submerged obstruction can cause extensive damage to driveshaft Replace shaft if worndInspect propeller for nicks, broken bladesand cracksDO NOT attempt to weld cracked or broken propellersRemove minor nicks with fileNote that the aft side of the propeller is flat while the other side is roundedFile blades accordingly to retain shapeCheck pitch on propeller pitch blockSee Evinrude Special Service Tool Catalog for proper fixture to check pitch of propellerTo straighten bent bladesuse piece of leather strap or belting under the part of the blade that touches the fixtureRap high part of blade smartly with No.3 rawhide malletThe leather allows slight overbend to correct for the blade's tendency to spring backSee Figure 6-27rubber slip clutch using propeller torque fixture assembly (Special Tool #378448), with torque shaft (Special Tool #308114)See Figure 6-28eInspect gearcase for chipped paint and nicks on the machined surfaces Remove nicks and re-surface faces on surface plate Start with Number 120 grit emery and finish with Number 180 gritCheck parallelism on plate with surface gage and scriberA drill press table will also serve, using the spindle as gage DO NOT attempt to straighten bent gearcase; replace itfRe-surface and inspect outer exhaust housing in !ike mannerReplace if bent It