447 Rotax, Rotax 447 engine specifications and technical data: |
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Rotax 447 engine data. |
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Rotax Engine Rebuilding Videos Rotax 447 engine specifications. |
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| DESCRIPTION: | Two-cycle, two-cylinder engine, oil in fuel lubrication | ||||
| BORE: | 67.5 mm (2.657 in.) | ||||
| STROKE: | 61 mm (2.40 in.) | ||||
| DISPLACEMENT: | 436.5 cc (26.635 cu. in.) | ||||
| COMPRESSION RATIO: | Theoretical 9.6, effective 6.3 | ||||
| POWER OUTPUT: | 29.5 kw (40 HP) at 6000 rpm | ||||
| TORQUE MAX.: | 44.0 NM (32.5 ft. lbs.) at 6000 rpm | ||||
| MAXIMUM RPM: | 7000 RPM | ||||
| DIRECTION OF ROTATION: | Counter-clockwise, viewed towards PTO | ||||
| CYLINDER: | 2 light alloy cylinders w/ cast iron sleeves | ||||
| PISTON: | Aluminum cast piston with 2 rings | ||||
| PISTON/CYLINDER CLEARANCE: | 0.08- 0.09mm (.00315-.00354 in.) | ||||
| IGNITION SYSTEM: | Breakerless Ducati capacitor discharge ignition with magneto generator. | ||||
| GENERATOR OUTPUT: | AC 12V 110W + 30W | ||||
| RECTIFIER-REGULATOR: (optional) |
a.) #9103 requires minimum load 12 W (1 amp.) | ||||
| b.) #9251 requires no minimum load | |||||
| IGNITION TIMING: | 2.09 mm = .086" BTDC | ||||
| CONTACT POINT GAP: | 0.4 mm = .015" | ||||
| SPARK PLUG: | 12mm NGK B8ES | ||||
| ELECTRODE GAP: | .015" GAP | ||||
| CARBURETOR: | 1 X BING 36mm, with hand lever choke | ||||
| FUEL PUMP: | pneumatic fuel pump #6903 | ||||
| FUEL: | Regular gasoline, octane not below 90 unleaded | ||||
| LUBRICATION OF ENGINE: | Super two stroke oil (AV-2) | ||||
| MIXING RATIO: | 50 TO 1 (2%) | ||||
| STARTER: | Rewind starter optional: electric mag side without recoil option |
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| REDUCTION GEARBOX "B": | Reduction gear-box with Torsional shock absorber | ||||
| RATIOS: 2.00 to 1, 2.238 to 1, 2.58 to 1 | |||||
| DIRECTION OF PROP ROTATION: | Clockwise, viewed toward prop flange | ||||
| COOLING: | Air cooled by axial fan | ||||
| WEIGHTS: | Engine without carburetor, intake silencer, fuel pump | ||||
| Exhaust System...................... | |||||
| Carb With Rubber Socket......... 2.0 lbs.......( 0.9 kg.) | |||||
| Exhaust System (approx.)......... 10.8 lbs.......( 4.9 kg.) | |||||
| Electric Start Kit (Optional)..... 7.70 lbs.......( 3.5 kg.) | |||||
| Reduction Box "B" - Dry.............9.9 lbs.......(4.5 kg.) | |||||
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