BRP Outlander 400 EFI 2008, Service Manual

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Section 03 ENGINE
Subsection 09 (CYLINDER HEAD/CYLINDER)
vmr2008-128-105_a
1. Cylinder head
2. Camshaft retaining plate screw
3. Camshaft retaining plate
Remove rocker arm shafts.
Remove rocker arms assembly (exhaust side and
intake side) with adjustment screws and nuts.
3
R400motr66A
2
1
4 5
1. Rocker arm shaft
2. Rocker arm (exhaust side)
3. Rocker arm (intake side)
4. Adjusting screw
5. Locking nut
Remove thrust washers no. 19 and no. 22 .
CAUTION: Pay attention not to lose thrust
washers or drop them into the timing chain
compartment.
2
R400motr67A
4
1 1
3
1. 2 thrust washers
2. Rocker arm (exhaust side)
3. Cylinder head — spark plug side
4. Big taper to PTO side
Rocker Arm Inspection
Inspect each rocker arm for cracks and scored fric-
tion surfaces. If so, replace rocker arm assembly.
Check the rocker arm rollers for free movement,
wear and excessive radial play. Replace rocker
arm assembly if necessary.
1
R400motr68A
A
2
1. Rocker arm (exhaust side)
2. Roller
A. Bore for rocker arm shaft
Measure rocker arm bore diameter. If diameter is
out of specification, change the rocker arm assem-
bly.
ROCKER ARM BORE DIAMETER
NEW
12.036 to 12.050 mm
(.4739 to .4744 in)
SERVICE LIMIT
12.060 mm (.4748 in)
Check adjustment screws for free movement,
cracks and/or excessive play.
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