Rotax 912 i Series Maintenance Manual page 189

Fig. 13
1. M6x20 Allen screw
3. Elbow flange
5. Plug holder
Step
5 Heat the coolant elbow and elbow flange
with a hot air gun to max. 120 °C.
6 Remove the coolant elbow.
7 Remove adhesive residues in the bore
and check the thread.
Effectivity: 912 i Series
Edition 1/Rev. 0
BRP-Powertrain
MAINTENANCE MANUAL
2. 6.4 washer
4. 19x2 O-ring
Procedure
INSPECTION
CYLINDER HEAD
SINGLE PARTS CHECK
Preparation
- Clean all parts carefully. See also section 05-
00-00 Procedures
CYLINDER HEAD STUDS CHECK
Step
1 M8x20/23 studs are used to attach the ex-
haust manifold.
2 Check that they are securely fitted and
undamaged.
3 If replacement is necessary, the stud is in-
stalled in such a manner that the longer
thread (23 mm) is screwed into the cylin-
der head.
4 Secure studs with LOCTITE 648.
Tightening torque 8 Nm (70.78 in. lb.).
Fig. 14
1. Stud
CYLINDER HEAD ASSY. - INSPECTION
Step
1 Inspect the cone of the exhaust manifold.
Indentations and scratches no greater
than 0.2 mm are permissible.
Bumps no greater than 0.1 mm are per-
missible.
Procedure
Procedure
72-30-00
Page 11
July 01/2012