Rotax 912 Series Maintenance Manual page 3

13) Maintenance of the Systems .......................................................................... 35
13.1) Fuel system ...................................................................................................... 35
13.1.1)
13.1.2)
13.1.3)
13.1.4)
13.1.5)
13.1.6)
13.1.7)
13.2) Lubricating system ........................................................................................... 48
13.2.1)
13.2.2)
13.2.3)
13.2.4)
13.2.5)
13.3) Cooling system ................................................................................................ 51
13.3.1)
13.3.2)
13.3.3)
13.3.4)
13.3.5)
13.3.6)
13.3.7)
13.3.8)
13.3.9)
13.3.10) water pump housing reassembly ................................................................. 59
13.3.11) Hose clamps ............................................................................................... 60
13.3.12) Cooling air baffle ......................................................................................... 60
13.4) Ignition system ................................................................................................. 61
13.4.1)
13.4.2)
13.4.3)
13.4.4)
13.4.5)
13.4.6)
13.4.7)
13.4.8)
Effectivity: 912 Series
AIRCRAFT ENGINES
MAINTENANCE MANUAL II
Removal of carburetors and carburetor flange ............................................. 35
BING constant depression carburetor: Check and maintenance .................. 36
13.1.2.1) Leakage test of float needle valve ............................................. 36
13.1.2.2) Diaphragm ................................................................................. 37
13.1.2.3) Jet needle .................................................................................. 37
13.1.2.4) Jets ............................................................................................ 38
13.1.2.5) Float chamber ............................................................................ 38
13.1.2.6) Float suspension ........................................................................ 39
13.1.2.7) Check of float needle valve ........................................................ 39
13.1.2.8) Starting carburetor (choke) ........................................................ 40
Check of the fuel system ............................................................................ 41
13.1.3.1) General notes on fuels ............................................................... 41
13.1.3.2) Fuel pressure ............................................................................. 42
Carburetor flange ......................................................................................... 44
Fuel pump ................................................................................................... 45
Fuel tubes ................................................................................................... 46
Carburetor flange, carburetor ....................................................................... 47
Oil pump removal ........................................................................................ 48
Oil pump checking ...................................................................................... 48
Oil pump reassembly .................................................................................. 49
Magnetic plug .............................................................................................. 50
Drain screw ................................................................................................. 50
Water pump removal ................................................................................... 51
Water pump housing disassembly and inspection ....................................... 51
Magneto hub ............................................................................................... 52
Ignition housing disassembly and inspect ................................................... 52
Water pump shaft disassembly ................................................................... 55
Rotary seal disassembly ............................................................................. 55
Rotary seal reassembly ............................................................................... 56
Crosssection of water pump ........................................................................ 57
Ignition housing reassembly ........................................................................ 58
Checking of ignition unit, trouble shooting ................................................... 61
Spark plugs, ignition cables, spark plug connectors, cables ....................... 61
Electronic module, trigger set ...................................................................... 62
Charging coil ............................................................................................... 63
Double ignition coil ...................................................................................... 63
Generator coil .............................................................................................. 64
Resistance values of the ignition unit .......................................................... 64
Wiring diagrams .......................................................................................... 65
13.4.8.1) Wiring diagram for ignition system("Single Plug") ...................... 65
13.4.8.2) Wiring diagram for ignition system ("Central plug") .................... 66
page 3
Initial issue, Jan. 01/2002