Austro Engine E4 Series - Troubleshooting Information; General

E4 Series
Maintenance Manual
Engine Fuel
System
E4.08.04
Rev.29
Page 101
73-Troubleshooting
01-Jul-2020
Troubleshooting Information
1. General
The table below lists the possible defects of the engine fuel system. If you have the trouble detailed in
the Trouble column, read across to the Possible Cause column. Then do the repair in the Repair
column.
Trouble
Possible Cause
Repair
Low fuel pressure.
Fuel pump clogged.
Refer to the Airplane
Maintenance Manual.
Fuel pump not operating.
Replace the fuel pump.
Contaminated fuel filter.
Replace fuel filter.
Flush the fuel tubes and the
fuel system.
Fuel return line blocked.
Remove the blockage.
Incorrect fuel pressure values.
Fuel pressure sensor connector
not adjusted.
Make sure that the WI-RSB-E4-
021 has been included.
Fuel leakage.
Loose fitting.
Tighten the fuel line.
Leaking components.
Replace defective components
Unusual engine behaviour.
Fuel injector failure.
Replace the injector.
Inspect the combustion
chamber for excessive soot
deposits, dents or cracks.