bpr Rotax 912 i Series, Руководство по обслуживанию, Страница: 194 / 458

Effectivity: 912 i Series
Edition 1/Rev. 0
d0
534
5.
fm
MAINTENANCE MANUAL
BRP-Powertrain
72-30-00
Page 12
July 01/2012
NOTE:
If the sealing cone of the exhaust ma-
nifold leaks, post-machining is per-
missible. If post-machining is neces-
sary, the cylinder head must be sent
to an authorised ROTAX overhauling
company.
Fig. 15
Fig. 16
HARDNESS TEST METHOD:
CH08: HB2,5/62,5 DIN EN ISO 6506-2
Fig. 17
NOTE:
If the rocker arm shaft bearing (CH05)
is worn, it can be post-machined to a
certain extent. The cylinder head
must be sent to an
authorised ROTAX overhauling com-
pany.
1. Cone (exhaust manifold)
m
WARNUNG
NOTICE
Cracks in the cylinder head are not permissible!
If in doubt, inspect the affected parts for cracks
using then dye penetrant method.
Step Procedure
2 Check the spark plug bore.
Check the thread for damage.
3 Check the sealing surface of the cylinder
block.
1. Sealing surface 2. Spark plug bore
m
WARNUNG
NOTICE
If the engine has been overheated, a hardness
test of the cylinder head is necessary. See the
current Maintenance Manual Line for the
912 i Series engine type. The hardness test
takes place at measurement point CH08 accor-
ding to
Fig. 17 .
m
WARNUNG
NOTICE
The results of the hardness test must be noted
in section 72-30-00, subsection: Wear limits.
1. Cylinder head