2006 ACURA CSX coolant

5-12Engine Assembly
Engine Removal (cont’d)
64. Check that the engine/transmission is completely
free of vacuum hoses, fuel and coolant hoses, and
electrical wiring.
65. Slowly lower the engine/transmission about 150 mm (6 in.). Check once again that all hoses and
electrical wiring are disconnected and free from the
engine/transmission, then lower it all the way.
66. Disconnect the chain hoist from the engine/ transmission.
67. Raise the vehicle on the lift, then remove the engine/transmission from under the vehicle.
08/08/21 14:20:28 61SNR030_050_0012
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 M/T model
A/T model
5-245-24
Engine Assembly
Engine Installation (cont’d)
Side Engine Mount Replacement
67. Refill the transmission with fluid:
 Manual transmission (see step 3 on page 13-5)
 Automatic transmission (see step 3 on page14-232)
68. A/T model: Move the shift lever to each gear, and verify that the A/T gear position indicator follows
the transmission range switch.
69. M/T model: Check that the transmission shifts into gear smoothly.
70. Refill the radiator with engine coolant, and bleed the air from the cooling system with the heater
valve open (see step 6 on page 10-8).
71. Do the ECM/PCM reset procedure (see page 11-4).
72. Do the crankshaft position (CKP) pattern clear/CKP pattern learn procedure (see page 11-4).
73. Inspect the idle speed (see page 11-309).
74. Inspect the ignition timing (see page 4-20).
75. Check the wheel alignment (see page 18-5). 1. Support the engine with a jack and wood block
under the oil pan.
2. Remove the upper torque rod.
Replace.
Replace.
Replace.
Replace.
08/08/21 14:21:01 61SNR030_050_0024
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 M/T model
A/T model
5-245-24
Engine Assembly
Engine Installation (cont’d)
Side Engine Mount Replacement
67. Refill the transmission with fluid:
 Manual transmission (see step 3 on page 13-5)
 Automatic transmission (see step 3 on page14-232)
68. A/T model: Move the shift lever to each gear, and verify that the A/T gear position indicator follows
the transmission range switch.
69. M/T model: Check that the transmission shifts into gear smoothly.
70. Refill the radiator with engine coolant, and bleed the air from the cooling system with the heater
valve open (see step 6 on page 10-8).
71. Do the ECM/PCM reset procedure (see page 11-4).
72. Do the crankshaft position (CKP) pattern clear/CKP pattern learn procedure (see page 11-4).
73. Inspect the idle speed (see page 11-309).
74. Inspect the ignition timing (see page 4-20).
75. Check the wheel alignment (see page 18-5). 1. Support the engine with a jack and wood block
under the oil pan.
2. Remove the upper torque rod.
Replace.
Replace.
Replace.
Replace.
08/08/21 14:21:01 61SNR030_050_0024
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Special Tools Required
Valve Clearance
Intake: 0.21 0.25 mm (0.008 0.010 in.)
Exhaust: 0.28 0.32 mm (0.011 0.013 in.)
K20Z2 engine
6-12Cylinder Head
Valve Clearance Adjustment
A
B
C No. 1
No. 2
No. 3No. 4
No. 1 No. 2 No. 3 No. 4
EXHAUST
INTAKE
AB
 Locknut wrench 07MAA-PR70120
 Adjuster 07MAA-PR70110
NOTE: Connector the Honda Diagnostic System (HDS)
to the data link connector (DLC) (see step 2 on page
11-3), and monitor the engine coolant temperature
(ECT) sensor 1 with the HDS. Adjust the valve clearance
only when the engine coolant temperature is less than
38 °C (100 °F). 1. Remove the cylinder head cover (see page 6-36).
2. Set the No. 1 piston at top dead center (TDC). The punch mark (A) on the variable valve timing control
(VTC) actuator and the punch mark (B) on the
exhaust camshaft sprocket should be at the top.
Align the TDC marks (C) on the VTC actuator and
the exhaust camshaft sprocket. 3. Select the correct feeler gauge for the valve
clearance you are going to check.
4. Insert the feeler gauge (A) between the adjusting screw (B) and the end of the valve stem, then slide
it back and forth, you should feel a slight amount of
drag.
08/08/21 14:26:30 61SNR030_060_0012
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Special Tools Required
K20Z3 engine
6-146-14 Cylinder Head
Valve Clearance Adjustment (cont’d)
B
A
C
11. Rotate the crankshaft 180 ° clockwise (camshaft pulley turns 90 °).
12. Check and, if necessary, adjust the valve clearance on the No. 2 cylinder.
13. Install the cylinder head cover (see page 6-37).  Locknut wrench 07MAA-PR70120
 Adjuster 07MAA-PR70110
NOTE: Connect the Honda Diagnostic System (HDS) to
the data link connector (DLC) (see step 2 on page 11-3),
and monitor the engine coolant temperature (ECT)
sensor 1 with the HDS. Adjust the valve clearance only
when the engine coolant temperature is less than 38 °C
(100 °F).
1. Remove the cylinder head cover (see page 6-36).
2. Set the No. 1 piston at top dead center (TDC). The punch mark (A) on the variable valve timing control
(VTC) actuator and the punch mark (B) on the
exhaust camshaft sprocket should be at the top.
Align the TDC marks (C) on the VTC actuator and
the exhaust camshaft sprocket.
08/08/21 14:26:31 61SNR030_060_0014
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6-386-38 Cylinder Head
Cylinder Head Cover Installation
(cont’d)
Cylinder Head Removal
B
C
A
6x1.0mm
10 N·m
(1.0 kgf·m, 7.2 lbf·ft)
6x1.0mm
12 N·m
(1.2 kgf·m, 8.7 lbf·ft) A
B
8. Install two bolts (A) securing the evaporativeemission (EVAP) canister purge valve bracket.
9. Connect the breather hose (B), and install the dipstick (C).
10. Connect the evaporative emission (EVAP) canister purge valve connector.
11. Install the four ignition coils (see page 4-21).
12. Install the engine cover. NOTE:
 Use fender covers to avoid damaging the painted surfaces.
 To avoid damaging the wire and terminals, unplug the wiring connectors carefully while holding the
connector portion.
 Connect the Honda Diagnostic System (HDS) to the data link connector (DLC) (see step 2 on page 11-3),
and monitor the engine coolant temperature (ECT)
sensor 1. To avoid damaging the cylinder head, wait
until the engine coolant temperature drops below
38 °C (100 °F) before loosening the cylinder head
bolts.
 Mark all wiring and hoses to avoid misconnection. Also, be sure that they do not contact other wiring or
hoses, or interfere with other parts.
1. Relieve the fuel pressure (see page 11-322).
2. Drain the engine coolant (see page 10-8).
3. Remove the air cleaner assembly (see page 11-345).
4. Remove the drive belt (see page 4-31).
5. Remove the intake manifold:  K20Z2 engine (see page 9-3)
 K20Z3 engine (see page 9-7)
6. Remove the exhaust manifold (see page 9-11).
7. Disconnect the evaporative emission (EVAP) canister hose (A) and the brake booster vacuum
hose (B).
08/08/21 14:27:27 61SNR030_060_0038
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6-386-38 Cylinder Head
Cylinder Head Cover Installation
(cont’d)
Cylinder Head Removal
B
C
A
6x1.0mm
10 N·m
(1.0 kgf·m, 7.2 lbf·ft)
6x1.0mm
12 N·m
(1.2 kgf·m, 8.7 lbf·ft) A
B
8. Install two bolts (A) securing the evaporativeemission (EVAP) canister purge valve bracket.
9. Connect the breather hose (B), and install the dipstick (C).
10. Connect the evaporative emission (EVAP) canister purge valve connector.
11. Install the four ignition coils (see page 4-21).
12. Install the engine cover. NOTE:
 Use fender covers to avoid damaging the painted surfaces.
 To avoid damaging the wire and terminals, unplug the wiring connectors carefully while holding the
connector portion.
 Connect the Honda Diagnostic System (HDS) to the data link connector (DLC) (see step 2 on page 11-3),
and monitor the engine coolant temperature (ECT)
sensor 1. To avoid damaging the cylinder head, wait
until the engine coolant temperature drops below
38 °C (100 °F) before loosening the cylinder head
bolts.
 Mark all wiring and hoses to avoid misconnection. Also, be sure that they do not contact other wiring or
hoses, or interfere with other parts.
1. Relieve the fuel pressure (see page 11-322).
2. Drain the engine coolant (see page 10-8).
3. Remove the air cleaner assembly (see page 11-345).
4. Remove the drive belt (see page 4-31).
5. Remove the intake manifold:  K20Z2 engine (see page 9-3)
 K20Z3 engine (see page 9-7)
6. Remove the exhaust manifold (see page 9-11).
7. Disconnect the evaporative emission (EVAP) canister hose (A) and the brake booster vacuum
hose (B).
08/08/21 14:27:27 61SNR030_060_0038
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6-40Cylinder Head
Cylinder Head Removal (cont’d)
B
A
12. Remove the bolt (A) securing the connecting pipe.
13. Disconnect the water bypass hose (B).
14. Disconnect the following engine wire harnessconnectors, and remove the wire harness clamps
from the cylinder head.
 Four fuel injector connectors
 Engine coolant temperature (ECT) sensor 1 connector
 Camshaft position (CMP) sensor A (Intake) connector
 Camshaft position (CMP) sensor B (Exhaust) connector
 Rocker arm oil control valve connector
 Rocker arm oil pressure switch connector
 EVAP canister purge valve connector
 Variable valve timing control (VTC) oil control solenoid valve connector
 Exhaust gas recirculation (EGR) valve connector (K20Z2 engine)
 Engine oil pressure switch connector 15. Remove the cam chain (see page 6-18).
16. Remove the rocker arm assembly:
 K20Z2 engine (see page 6-43)
 K20Z3 engine (see page 6-44)
17. Remove the cylinder head bolts. To prevent warpage, loosen the bolts in sequence 1/3 turn at a
time. Repeat the sequence until all bolts are
loosened.
18. Remove the cylinder head.
08/08/21 14:27:28 61SNR030_060_0040
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