Disassembly; Disassembling The Cylinder Head; Rocker Arm - Removal; Valve - Removal - Rotax 915 i A series Maintenance Manual

DISASSEMBLY

DISASSEMBLING THE CYLINDER HEAD

The cylinder head should be disassembled on a
clean surface. There must be enough space to lay
out the removed parts to ensure that all the parts can
be laid out and allocated according to their installa-
tion position.
ATTENTION
Danger of consequent damage to engine! Dur-
ing assembly, the valves and all the associated
components must be re-installed in their origi-
nal position.
Mark the valves and the associated components
correspondingly before removing them.
ROCKER ARM — REMOVAL
ATTENTION
The rocker arm shaft should never be forced
Step Procedure
1 Pull out the rocker arm shaft and take out
the two rocker arms.
Figure 8.12
1 Rocker arm shaft
3 Left rocker arm
72–30–00
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August 01 2018
MAINTENANCE MANUAL HEAVY
out.
2 Right rocker arm
BRP-Rotax
VALVE — REMOVAL
Before taking out the valves, remove any burrs
on the valve stem to avoid damage to the stem
seal or guide. Mark the valves accordingly.
Step Procedure
1 Compress the valve springs using the
valve spring mounting device part no.
877380 and valve spring collet.
2 Removal of the valve cotters.
3 Release the valve spring tension.
4 Remove the valve spring retainer and
valve springs with the washer and pull out
the valve.
5 Repeat this process for the second valve
and clean the cylinder head.
NOTE
There is a valve stem seal only on the intake
valve.
Figure 8.13
Cylinder head assy.
1
Valve spring mounting
3 device part no.
877380
ATTENTION
2 Valve spring collet
4
Valve cotter
Effectivity: 915 i A Series
Edition 0/Rev. 0