Honda Odyssey 2004. Manual — part 50
02
2002-2004 models:
6-40
Cylinder Head
Rocker Arm and Shaft Disassembly/Reassembly (cont’d)
INTAKE ROCKER SHAFT
INTAKE ROCKER
ARM ASSEMBLY
SPRING
EXHAUST ROCKER
ARM B
EXHAUST ROCKER
ARM A
EXHAUST ROCKER SHAFT
A
B
A
B
Letter B is stamped
on rocker arm.
Letter A is stamped
on rocker arm.
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−
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*02
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Rocker Arm-to-Shaft Clearance
Standard (New):
Intake:
Service Limit:
Exhaust:
Service Limit:
0.026 0.067 mm (0.0010 0.0026 in.)
0.067 mm (0.0026 in.)
0.026 0.077 mm (0.0010 0.0030 in.)
0.077 mm (0.0030 in.)
6-41
Rocker Arm and Shaft Inspection
A
1. Remove the rocker arm assembly (see page 6-38).
2. Measure the diameter of the shaft at the first rocker
location.
3. Zero the gauge (A) to the shaft diameter.
4. Measure the inside diameter of the rocker arm, and
check it for an out-of-round condition.
5. Repeat for all rockers and both shafts. If the
clearance is over the limit, replace the rocker shaft
and all overtolerance rocker arms. If any intake
rocker arm needs replacement, replace both rocker
arms (primary and secondary, or primary, mid and
secondary) as a set.
(cont’d)
Inspect rocker arm
face for wear.
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01
*04
VTEC Rocker Arms
1999-2001 models:
2002-2004 models:
6-42
Cylinder Head
Rocker Arm and Shaft Inspection (cont’d)
A
B
B
A
6. Inspect the rocker arm piston (A). Push them
manually. If they do not move smoothly, replace
the rocker arm assembly.
NOTE:
• Apply new engine oil to the pistons when
reassembling.
• When reassembling the primary rocker arm (B),
carefully apply air pressure to the oil passage of
the rocker arm.
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*01
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Specified torque
8 x 1.25 mm
24 N·m (2.4 kgf·m, 17 lbf·ft)
Apply new engine oil to the bolt threads and
flange
Camshaft End Play
Standard (New):
0.05
0.20 mm
(0.002
0.008 in.)
Service Limit:
0.20 mm (0.008 in.)
6-43
Camshaft Inspection
A
B
1. Remove the timing belt (see page 6-20).
2. Remove the rocker arms (see page 6-38).
3. Put the rocker shafts on the cylinder head, then
tighten the bolts to the specified torque.
4. Seat the camshaft by pushing it toward the rear of
the cylinder head.
5. Zero the dial indicator against the end of the
camshaft. Push the camshaft back and forth and
read the end play. If the end play is beyond the
service limit, replace the thrust cover and recheck.
If it is still beyond the service limit, replace the
camshaft.
6. Remove the camshaft thrust cover (A), then pull out
the camshaft (B).
(cont’d)
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