10) Ignition Electric Set Disassembly; Double Ignition Coil Renewal - Rotax 912 Series Maintenance Manual

13.4.10) Ignition electric set disassembly

Effectivity: 912 Series
AIRCRAFT ENGINES
MAINTENANCE MANUAL II
See fig. 103, 104
NOTE: Before removal, mark all 8 ignition cables resp. check
the correct application of the marking sleeves Q-W-E-
R of cylinders no. 1 to 4, to avoid mix-up at reassembly.
Cut the cable straps A of the lower spark plug connectors and pull ignition
cables through the cylinder heads. If necessary, push off the 2 protection
hoses T for the lower ignition cables.
Remove Allen screw M5x25 Y for the electronic modules U and tilt
modules sideways from the engine. Remove hex. screw M6x16 I and
lock washer A6 from intake manifold and the ground cables O from both
electronic modules and P from the 4 ignition coils
correct connection between electronic modules and ignition coils.

Double ignition coil renewal

At renewal of a double ignition coil, the following dismantling procedure is
required:
Remove hex. nut M6 { and rubber mount } with bracket q. Remove the
Allen screw M6x16 w from rubber mount e with an Allen key. Remove
both Allen screws r and ignition coil bracket t as well as the 3
mount y with bracket u.
Remove both Allen screws M6x30 i from the distance nut M6 o. After
detaching the double grounding cables P, the double ignition coilsp and
[ can be replaced individually. The ignition cables are screwed in and
therefore are renewable.
Except for the double ignition coil [ for spark plug 3 top
NOTE:
and 4 bottom, all are fitted in the same position, with boss
] upwards.
S
. Pay attention to the
rd
rubber
page 68
Initial issue, Jan. 01/2002