Rotax Components
These are the key components in the ROTAX 912
- Integral gearbox
- Fuel pump mechanically driven off the gearbox
- Oil pump mechanically driven off engine camshaft
- Oil pressure sender
- Oil cooler
- Radiator for engine cylinder head coolant
- BING constant velocity carburetors which automatically adjust for altitude (also called constant depression)
- ROTAX air box (optional) which allows for carb heat and external combustion air inlet
- External oil tank where oil is stored. Drain oil by removing bottom screw.
- Regulator/rectifier converting engine generated AC to 14 volts DC to charge battery for aircraft 12 volt DC system
- Coolant recovery bottle (typically 1/3 full when cold)
- Air shroud for additional cylinder head cooling (optional)
- Oil cooler with fittings preferred on top
- Airframe air box with carb vent line properly attached to air box
- Battery, regulator/rectifier and starter solenoid grouped together
- Cabin heat exhaust muff (optional) from ram air intake
- Cooling expansion tank with overflow bottle mounted low (preferred to eliminate possibility of cooling fluid being siphoned out while checking)
- Gascolator for sediment and water separation from fuel. Gascolator recommended fuel filter inside engine compartment
Next: Oil System
