2006 ACURA CSX Service Repair Manual

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Page 145 of 2893

ACURA CSX 2006 Service Repair Manual

(#
%)Ref. No. Tool Number Description Qty
6-2
Cylinder Head
Special Tools
07

Page 146 of 2893

ACURA CSX 2006 Service Repair Manual Î
(#
)
6-3
Component Location Index
IGNITION COIL COVERCAM CHAIN
GUIDE A O-RING
CHAIN CASE COVER
CRANKSHAFT POSITION
(CKP) SENSOR
TENSIONER ARM
CRANK

Page 147 of 2893

ACURA CSX 2006 Service Repair Manual ÎK20Z2 engine
6-4Cylinder Head
Component Location Index (cont’d)
CAM CHAIN GUIDE B
INTAKE CAMSHAFT VTC ACTUATOR
EXHAUST CAMSHAFT
SPROCKET EXHAUST CAMSHAFT
ROCKER ARM ASSEMBLY
CAMSHAFT HOLDERS

Page 148 of 2893

ACURA CSX 2006 Service Repair Manual ÎK20Z3 engine
6-5
CAM CHAIN GUIDE B
EXHAUST CAMSHAFT
SPROCKET
EXHAUST CAMSHAFT
CAMSHAFT HOLDERS
DOWEL PINS
CAMSHAFT POSITION
(CMP) SENSOR A
(INTAKE)
CMP SENSOR B
(EXHAUST)
O-RING
DOWEL PINS
O-RI

Page 149 of 2893

ACURA CSX 2006 Service Repair Manual Î
6-6Cylinder Head
Component Location Index (cont’d)
CYLINDER HEAD BOLT
INTAKE VALVE SPRINGINTAKE VALVE SEAL
INTAKE VALVE GUIDE
VTC STRAINER
VTC FILTER
CYLINDER HEAD
EXHAUST VALVE
INTAKE VALVE

Page 150 of 2893

ACURA CSX 2006 Service Repair Manual
(#
")Compression Pressure:
Above 930 kPa (9.5 kgf/cm , 135 psi)
Maximum Variation:
Within 200 kPa (2.0 kgf/cm , 28 psi)
2
2
6-7
Engine Compression Insp

Page 151 of 2893

ACURA CSX 2006 Service Repair Manual

(#

)
Special Tools Required
Specified Air Pressure:
290 kPa (3.0 kgf/cm , 42 psi)
K20Z2 engine
2
6-8Cylinder Head
VTEC Rocker Arm Test
B
A D
07ZA

(#'

)
Special Tools Required
Specified Air Pressure:
290 kPa (3.0 kgf/cm , 42 psi)
K20Z2 engine
2
6-8Cylinder Head
VTEC Rocker Arm Test
B
A D
07ZAJ-PNAA300
A
B
07ZAJ-PNAA200 C
07ZAJ-PNAA101
E
07AAJ-PNAA101
VTEC air stopper 07ZAJ-PNAA200
VTEC air adapter 07ZAJ-PNAA101
Air joint adapter 07ZAJ-PNAA300
Air pressure regulator 07AAJ-PNAA101
1. Start the engine, and let it run for 5 minutes, then turn the ignition switch to LOCK (0).
2. Remove the cylinder head cover (see page 6-36).
3. Set the No. 1 piston at top dead center (TDC) (see step 5 on page 6-18).
4. Move the intake primary rocker arm (A) for the No. 1 cylinder. The primary rocker arm should
move independently of the intake secondary rocker
arm (B).
If the intake primary rocker arm moves freely, go to step 5.
If the intake primary rocker arm do not move independently, remove the primary and
secondary rocker arms as an assembly and check
that the pistons in the secondary and primary
rocker arms move smoothly. If any rocker arm
needs replacing, replace the primary and
secondary rocker arms as an assembly, then
retest. 5. Repeat step 4 on the remaining intake primary
rockerarmswitheachpistonatTDC.Whenallthe
primary rocker arms pass the test, go to step 6.
6. Check that the air pressure on the shop air compressor gauge indicates over 400 kPa
(4 kgf/cm , 57 psi).
7. Inspect the valve clearance (see page 6-12).
8. Remove the sealing bolt (A) from the relief hole, and install the VTEC air stopper (B).
9. Remove the No. 2 and No. 3 camshaft holder bolts, and install the VTEC air adapters (C) finger-tight.
10. Connect the air joint adapter (D) and the air pressure regulator (E).
11. Loosen the valve on the air pressure regulator, and apply the specified air pressure.
NOTE: If the rocker arm piston does not move after
applying air pressure, move the primary or
secondary rocker arm up and down manually by
rotating the crankshaft clockwise.
2
08/08/21 14:26:27 61SNR030_060_0008
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Page 152 of 2893

ACURA CSX 2006 Service Repair Manual
(#

) Special Tools Required
K20Z3 engine
6-96-9
B A
A
B
12. With the specified air pressure applied, move the
intake primary rocker arm (A) for t

(#'

) Special Tools Required
K20Z3 engine
6-96-9
B A
A
B
12. With the specified air pressure applied, move the
intake primary rocker arm (A) for the No. 1 cylinder.
The primary rocker arm and secondary rocker arm
(B) should move together.
If the primary and the secondary rocker arm move together, go to step 13.
If the intake secondary rocker arm do not move together, remove the primary and secondary
rocker arms as an assembly, and check that the
pistons in the primary and secondary rocker
arms move smoothly. If any rocker arm needs
replacing, replace the primary and secondary
rocker arms as an assembly, then retest.
13. Repeat step 12 on the remaining primary rocker arms with each piston at TDC. When all the primary
rocker arms pass the test, go to step 14.
14. Remove the air pressure regulator, the air joint adapter, the VTEC air stopper and VTEC air
adapters.
15. Tighten the camshaft holder mounting bolts to 22 N·m (2.2 kgf·m, 16 lbf·ft).
16. Tighten the sealing bolt to 20 N·m (2.0 kgf·m, 14 lbf·ft).
17. Install the cylinder head cover (see page 6-37). VTEC air stopper 07ZAJ-PNAA200
VTEC air adapter 07ZAJ-PNAA101
Air joint adapter 07ZAJ-PNAA300
Air pressure regulator 07AAJ-PNAA101
1. Start the engine and let it run for 5 minutes, then turn the ignition switch to LOCK (0).
2. Remove the cylinder head cover (see page 6-36).
3. Set the No. 1 piston at TDC (see step 5 on page 6-18).
4. Move the secondary rocker arm (A) for No. 1 cylinder. The secondary rocker arm should move
independently of the mid rocker arm (B).
If the secondary rocker arm moves freely, go to step 5.
If the secondary rocker arm do not move independently, remove the mid, primary, and
secondary rocker arms as an assembly, and
check that the pistons in the rocker arms move
smoothly. If any rocker arm needs replacing,
replace the mid, primary, and secondary rocker
arms as an assembly, then retest.
5. Repeat step 4 on the remaining secondary rocker arms with each piston at TDC. When all the
secondary rocker arms pass the test, go to step 6.
6. Check that the air pressure on the shop air compressor gauge indicates over 400 kPa
(4.0 kgf/cm , 57 psi).
7. Inspect the valve clearance (see page 6-14).
(cont’d)
2
08/08/21 14:26:28 61SNR030_060_0009
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