9) Ignition Electric Set Disassembly - Rotax 912 Series Maintenance Manual

13.4.9)
Effectivity: 912 Series
AIRCRAFT ENGINES
MAINTENANCE MANUAL II
Ignition electric set disassembly
See fig. 102.
The ignition electric set, consisting of 2 electronic modules and 4 double
ignition coils, is fitted to the engine on 3 rubber mounts. For removal, detach
all 8 spark plug connectors Q from the spark plugs. Cut the cable straps
for the 4 lower spark plug connectors and draw the ignition cables with
protection hose through the cylinder heads. Take care not to lose the
ignition cable marking sleeves.
NOTE: On engines with hydraulic propeller governor it is
necessary to remove also the spark plug connectors
of the 2 upper spark plugs of cylinders 2 and 4 to allow
easy removal of the ignition cables.
Cut off cable straps W for ignition cable fixation and the plug connectors.
Remove hose clamp E and grounding cable } after removal of Allen
screw M5x25 R at the electronic module. Mark the two 4-pole plugs T of
the generator cables and the plug connection of the red trigger cable and
remove them (see fig 100 and 100/1). Detach both fasteners Y of the
ignition electric set (1 x M6 on bracket (ignition housing) and 1 x M8x50 U
on crankcase).
Unhook the tension spring of the carb support and remove the 4 Allen
screws M6 U each of the two intake manifolds I. Now the 2 intake
manifolds I with O-rings, compensating tube O, fuel line and ignition
electric set can be removed, proceeding with great care. Plug all 4 intake
apertures to avoid entry of foreign matter.
00334
7
7
8
fig. 102
1
2
2
9
6
5
1
8
7
4
4
10
3
page 67
Initial issue, Jan. 01/2002