Rotax 914 F Maintenance Manual page 5

12.4) Special checks ...................................................................................................... 113
12.4.1) Check of engine after propeller ground contact or accidental propellerdamage
113
12.4.2) Checking of the overload clutch ............................................................... 114
12.4.3) Check after engine failure ........................................................................ 115
12.4.3.1) Engine runs erratic and misfires ............................................. 115
12.4.3.2) Unintended engine stoppage by seizing ................................. 115
12.4.3.3) Engine back to operation after submerging in water ............... 115
12.4.4) Rough engine run ..................................................................................... 115
12.4.5) Checks for extreme climatic conditions ................................................... 115
12.4.6) Exceeding of maximum admissible engine speed ................................... 116
12.4.7) Exceeding of cylinder head temperature ................................................. 116
12.4.8) Exceeding of oil temperature .................................................................... 117
12.4.9) Oil pressure below minimum value .......................................................... 117
12.4.10) Oil specification not respected ................................................................. 118
12.4.11) Sudden drop of boost pressure and engine speed .................................. 118
12.4.12) Sudden rise of boost pressure and engine speed ................................... 118
12.4.13) Periodical rising and dropping of boost pressure and engine speed (surging of
the TCU) ................................................................................................... 119
12.4.14) Constant lighting of the red boost lamp of the TCU .................................. 120
12.4.15)Flashing of the red boost lamp of Turbo Control Unit (TCU) ..................... 121
12.4.16) Flashing of the orange caution lamp ........................................................ 122
12.4.17) Failure of power supply to the TCU .......................................................... 122
12.4.18) Tight movement of engine ........................................................................ 123
13) Maintenance of the various systems ................................................................ 124
13.1) Fuel system ............................................................................................................ 124
13.1.1) Removal of carburetors, carburetor flanges, fuel tubes and drip trays .... 124
13.1.2) BING constant depression carburetor: Check and maintenance ............ 124
13.1.2.1) General ................................................................................... 124
13.1.2.2) Leakage test of float needle valve .......................................... 125
13.1.2.3) Carburetor components .......................................................... 126
13.1.2.4) Diaphragm .............................................................................. 127
13.1.2.5) Jet needle, carburetor piston .................................................. 127
13.1.2.6) Float chamber, floats .............................................................. 128
13.1.2.7) Float suspension .................................................................... 128
13.1.2.8) Jets ......................................................................................... 128
13.1.2.9) Check of float needle valve .................................................... 129
13.1.2.10) Starting carburetor (choke) .................................................... 129
13.1.2.11) Carburetor reassembly ........................................................... 129
13.1.3) Carburetor synchronization ...................................................................... 130
13.1.2.1) Mechanical synchronization ................................................... 130
13.1.3.2) Pneumatic synchronization .................................................... 130
13.1.4) Idle speed adjustment .............................................................................. 131
13.1.5) Check of the fuel system ......................................................................... 132
13.1.5.1) General notes on fuels ............................................................ 132
13.1.6) Fuel pressure ........................................................................................... 133
13.1.7) Carburetor flange, drip tray ...................................................................... 134
13.1.8) Fuel tubes ................................................................................................. 135
13.1.9) Fuel pressure regulator ............................................................................ 135
13.1.10) Fuel pump ................................................................................................. 136
13.1.11) Pressure connection tubes ...................................................................... 138
13.1.12) Reassembly of carburetors, carburetor flanges, fuel tubes
and drip trays ........................................................................................... 140
Modification no.
- 5 -
Reference Main Date
914 F 2003 03 01
Page
5