bpr Rotax 912 i Series, Руководство по обслуживанию, Страница: 207 / 458

Effectivity: 912 i Series
Edition 1/Rev. 0
d
053
45.
fm
MAINTENANCE MANUAL
BRP-Powertrain
72-30-00
Page 25
July 01/2012
INSTALLATION
CYLINDER HEAD INSTALLATION
Preparation
- Clean all parts carefully.
- Lightly grease or lubricate O-rings and gas-
kets.
Fig. 37
NOTE:
The intake manifold with the fuel rail
must be raised slightly for part re-
pairs.
Fig. 38
NOTE:
If necessary, repeat the process for
the other cylinder heads.
m
WARNUNG
NOTICE
To ensure constant tightening torque, lightly lu-
bricate the flat surfaces of the collar cap nuts.
m
WARNUNG
NOTICE
Place the cylinder at TDC. The valves then over-
lap. This prevents a situation in which a valve is
open and the cylinder head lifts off again from
the cylinder head gasket face. Otherwise the oil
return tube O-rings can be damaged.
Step Procedure
1 Install the corresponding push-rods in the
oil return tubes.
2 Lubricate the push-rod heads with KLUE-
BER ISOFLEX TOPAS.
3 Install the lubricated 16x5 O-ring on the oil
return tube.
1. Push-rods 2. Oil return tubes
3. 16x5 O-ring
Step Procedure
4 Place on the cylinder head until the
O-rings of the two oil return tubes rest in
the crankcase.
5 Raise the cylinder until the centring collar
of the cylinder engages in the cylinder
head release.
1. Cylinder head assy. 2. O-ring
3. Oil return tube 4. Crankcase
5. Centring collar of cylinder
m
WARNUNG
NOTICE
O-rings must be pressed into the crankcase at
the same time.
Step Procedure
6 Install the cylinder head and the cylinder
together.
7 Fasten the cylinders finger-tight and diag-
onally at first with 2 M8 collar cap nuts and
2 M8 hex. nuts.