AE50R, AE50RA
AE50RAB
Engine Manual
Doc. No. E1.01.0-E
Rev. 6 10-March-2011
Page 14-1
14.0 ENGINE INTERNAL INSPECTION
Remove all dirt from the exterior of the engine and inspect for evidence of overheating or other
unsatisfactory conditions.
Inspect rotor tip seals and internal side plate faces.
1)
It will be necessary to remove the throttle body and the exhaust pip to carry out this
inspection. The use of a ‘Boroscope’ or fibre optic probe facilitates viewing.
NOTE !
Care must be taken to ensure the probe is withdrawn before the
engine is rotated!
2)
Once the openings are exposed, rotate the eccentric shaft by hand to view the rotor tip
seals. Each seal should not be stuck in the groove and free to spring. The side plate
seal faces inside the engine should not exhibit significant distress. Minor scoring and
scuffing is acceptable. It is important to obtain a good view of the side faces above the
centre line of the engine, where the cooling medium is air. This can only be achieved
through the inlet port.
3)
If there is any doubt about the acceptability of the faces or the seals, then access
should be gained to the air outlet of the front plate by removal of the oil separator. If
there are any hard carbon deposits on the internal walls of the duct in the front plate
then the side seals may have allowed combustion gas to blow by. Austro Engine
GmbH should be consulted if this condition is found.
14.1 Spark
Plug
The spark plug is of the surface discharge type with a long life platinum centre electrode.
See 11.1 for the replacement Part Number.
The spark plugs must be removed for inspection at the intervals required in the maintenance
schedule.
1)
Check the electrical connections for corrosion and lightly smear with silicone grease.
2)
Clean the electrode area of the plugs with gasoline if required.
3)
If possible check plug function under pressure.
4)
Replace spark plug in engine, (torque to value as in 11.2.1).
5)
Anti–seize grease must be used on the threads. See 11.1 for Part Number.
