ENGINE MANUAL
IAE50R – AA
17.3 Engine Misfires on One Spark Plug
Dirty plug cap / terminal Clean / replace
Wiring fault - Wiring to earth or open circuit
Faulty spark plug - Clean / replace
HT fault - Check / replace spark plug / HT lead /
plug cap for arcing
17.4 Engine Cannot Develop Full Power
Incomplete throttle opening - Adjust throttle linkage
HT fault - Check/replace spark plug/HT lead/plug cap
Increase in exhaust back pressure - Investigate exhaust / replace
Loss of compression - Investigate
Blocked Induction Filter - Replace / clean filter
Low fuel pressure - Investigate fuel system / replace fuel filter
17.5 Excessive Rotor Cooling Outlet Temperatures
Excessive back pressure in outlet duct - Rectify before continuing running engine
Blocked rotor air inlet filter - Clean or replace filter
Slipping / broken fan belt - Adjust / replace
Fan failure / impeller failure
bearing failure - Replace assembly
Stuck side seal(s) - Investigate outlet for black carbon deposits
If found please contact Austro Engine GmbH.
Investigate possible exhaust leakage within the engine bay area.
17.6 Liquid Coolant Overheats on Medium and High Power
Restricted radiator core - Rectify
Constricted radiator hose - Rectify
Water pump drive failure - Overhaul pump
Air in system - Vent / bleed
Coolant leak - Rectify
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