BRP BOMBARDIER DS250 2006 Shop Manual page 96

vmr2006-073-022
ROCKER ARM BORE DIAMETER
New
Service limit 12.080 mm (.4756 in) max.
Check adjustment screws for free movement,
cracks and/or excessive play.
Rocker Arm Shaft
Check for scored friction surfaces.
Measure rocker arm shaft diameter.
vmr2006-073-023
ROCKER ARM SHAFT DIAMETER
New
Service limit 11.936 mm (.4699 in) max.
Valve Spring
Check valve spring for visible damages.
Check also for free length and straightness.
vmr2006-073
11.982 - 12.000 mm
(.4717 - .4724 in)
11.966 - 11.984 mm
(.4711 - .4718 in)
Subsection 08 (CYLINDER HEAD)
A. Valve spring free length
VALVE SPRING FREE LENGTH
DESCRIPTION INNER
38.70 mm
New
(1.523 in)
35.20 mm
Service limit
(1.386 in)
Valve
Inspect valve surface, check for abnormal stem
wear, burning, cracking and bending.
Check the operation condition of valve stem in
valve guide.
Measure valve stem outer diameter at 3 different
places.
A. Valve stem diameter
Section 03 ENGINE
OUTER
40.40 mm
(1.591 in)
36.90 mm
(1.453 in)
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