Suzuki 2009 LT-A500XP, Service Manual

Page: 185 / 624

Engine Mechanical: 1D-37
3) Tighten the rocker arm shaft bolts (4) to the specified
torque.
CAUTION
!
Replace the gaskets with new ones.
Tightening torque
Rocker arm shaft bolt (a): 28 N·m (2.8 kgf-m, 20
lbf-ft)
Cylinder Head Cover Related Parts Inspection
B931H21406029
Refer to “Cylinder Head Cover Disassembly and
Assembly (Page 1D-36)”.
Cylinder Head Distortion
1) Remove sealant from the mating surface of the
cylinder head cover.
2) Place the cylinder head cover on a surface plate and
check for distortion with the thickness gauge. If the
distortion exceeds the limit, replace the cylinder
head cover.
Special tool
(A): 09900–20803 (Thickness gauge)
Cylinder head cover distortion
Service limit: 0.05 mm (0.002 in)
Rocker Arm Shaft Outside Diameter
Measure each rocker arm shaft out side diameter using
the micrometer. If the diameter exceeds the limit, replace
the rocker arm shaft with a new one.
Special tool
(A): 09900–20205 (Micrometer (0 – 25 mm))
Rocker arm shaft O.D. (IN. & EX.)
Standard: 11.973 – 11.984 mm (0.4714 – 0.4718 in)
Rocker Arm Inspection
Measure the inside diameter of the rocker arm and
check the wear of the camshaft contacting surface. If the
diameter exceeds the limit or any damage is found,
replace the rocker arm with a new one.
Special tool
(A): 09900–20605 (Dial calipers (10 – 34 mm))
Rocker arm I.D. (IN. & EX.)
Standard: 12.000 – 12.018 mm (0.4724 – 0.4731 in)
(a)
4
I931H1140143-02
(A)
I931H1140144-01
(A)
I931H1140146-01
(A)
I931H1140147-01