BRP-Rotax
Maintenance Manual
72-00-00
page 70
May 01/2007
Effectivity 912/914 Series
Edition 1 / Rev. 0
d02622
3.11.8) Rocker arm and rocker arm shaft
See Figs. 72-76 and 72-77.
The rocker arm bearing (1) is lubricated via the hollow pushrod (2) to
the ball joint (female) (3). The oil flows through the oil ducts (4) in the
rocker arm to lubricate the rocker arm bearing. The oil exit and thus the
splash oil lubrication of the complete valve mechanism is via bore (5)
The rocker arms for the inlet and outlet are different.
Check surface of rocker arm shaft and inner diameter of the rocker arm
bearing bush (6) for signs of friction. Carry out a visual inspection of the
valve stem contact area (7) and ball joint (female) (3) of the rocker arm.
Excessive signs of wear indicate lack of oil. Slight reworking of contact
area (7) for the valve stem is permissible. Check oil bores (4) in the
rocker arm for free passage.
◆
NOTE:
Oversize rocker arm shafts and rocker arm bushings
are available for repairing the rocker arm bearing in the
cylinder head.
The bronze colored fitted bearing bushing (6) cannot be replaced. If
necessary, replace the whole rocker arm.
00286
Maß
dim.
VT07
00287
1
2
3
4
5
6
7
6
Fig. 72-76
Fig. 72-77
Summary of Contents for MMH-912 Series
Page 463: ......
