GDMMTA582-1G
Version 0010
34
Engine Power
Spark plugs should be the type recommended by the manufacturer. Adjusting the
carburetor is a specialized job and can have a large effect on the power of the engine.
Altitude can also affect the power available. When moving to an airfield with a different
elevation it may be necessary to retune the carburetor.
It is recommended that only a qualified person should tune the engine.
Other than any specific procedures specified elsewhere in this manual, detailed procedure
for the maintenance and overhaul of the Rotax 582 engine fitted to the Skypper 582
aircraft can be found in the following documents:
Rotax Operators’ Manual for Rotax Engine Type 582 Series
Rotax Documentation CD
Documentation for Rotax engine is available at
http://www.rotax-aircraft-engines.com
The supplied manuals and documentation are supplemented by Rotax Service letters and
Service Bulletins as appropriate. The Rotax website should be periodically reviewed for
these updates.
Overhaul of Rotax engines should be performed by a qualified Rotax service centre.
Carburetor
When checking the carburetor rubber flanges, check for cracks. There is a Rotax service
announcement (1998) which points out that there is a potential issue with the rubbers.
Compress carburetor socket in the area of the carburetor connection to allow easier
detection of existing cracks (1) and (3) also check the area of the inner diameter (2). At
suspicion of cracks, renew the carburetor flange.
Apart from chemical strain due to fuel and UV radiation, the carburetor socket is
subject to stress from vibration. Excessive tightening of the clamp may also damage
it causing cracks and resulting in intake leaks.
Figure 6-22
Radiator
If the radiator hoses are replaced, it is important that the replacement hoses are identical
to those supplied with the aircraft. The engine coolant is circulated rapidly through the
cooling system and the fitting of hoses other than those supplied can increase flow
resistance leading to high coolant temperatures. Refer to the Rotax Maintenance Manual
for detailed Radiator maintenance, and specific fluids and replacement specifications.
