1970 Evinrude Ski-Twin, Ski-Twin Electric 33 HP Service Manual 4687, Page 6Get this manual
CLEARANCE CHART ,
POWER HEAD Piston ring gap .017 Max- .007 MinPropeller shaft in front gear bushing .0020 Max- .0010 Min
Piston ring groove .007 Max- .0045 Minclearance Rea reverse gear .0020 Max- .0005 Minto rear bushing .0006 Max- .0001 MinPiston pin to pistonloose end Cylinder and piston Crankshaft end play LOWER UNIT Driveshaft upper Roller Propeller on shaftabove the shoulder 00069 Max- .0034 Min.0045 Max- .0030 Min.011 Max- .003 MinPropeller on shaft at drive pin hole .007 Max- .003 MinRear gear bearing .0025 Max- .0005 Minto propeller shaft
TORQUE CHART
POWER HEAD Flywheel nut Connecting rod screw Cylinder head screws 100105 Foot-pounds 348372 Inch-pounds (2931 Foot-pounds) 168192 Inch-pounds LOWER UNIT Side mounts upper and lower nuts Front mount upper nut 150170 Inch-pounds (1214 Foot-pounds) 240320 Inch-pounds (2026 Foot-pounds)
Crankcase to cylinder screwsupper and lower 150170 Inch-pounds center 162168 Inch-pounds Electric starter through bolts Spark plug Starter housing screws 6066 Inch-pounds 17-1220-12 Foot-pounds 96120 Inch-pounds (810 Foot-pounds)