Acura CSX. Instruction — page 76

01

02

03

SNR9A00A14400065091KBAT00

10-11

Water Passage Replacement

C

D

E

B

A

B

A

1. Drain the engine coolant (see page 10-8).

2. Remove the alternator (see page 4-34).

3. Remove the A/C condenser fan shroud assembly.

4. Remove the A/C compressor without disconnecting

the A/C hoses (see step 40 on page 5-7).

5. Remove the intake manifold:

• K20Z2 engine (see page 9-3)
• K20Z3 engine (see page 9-7)

6. Remove the bolt (A) securing the connecting pipe.

7. Disconnect the lower radiator hose (B), the

connecting pipe (C), and the water bypass hose (D),
and remove the harness clamp (E).

8. Disconnect the positive crankcase ventilation (PCV)

hose (A), then remove the water passage (B).

9. Remove the thermostat housing.

10. Remove the water pump:

• K20Z2 engine (see page 10-6)
• K20Z3 engine (see page 10-7)

08/08/21 14:40:00 61SNR030_100_0011

*01

*04

*02

*03

10-12

Cooling System

6 x 1.0 mm
12 N·m
(1.2 kgf·m, 8.7 lbf·ft)

A

B

C

A

10 x 1.25 mm
44 N·m (4.5 kgf·m, 33 lbf·ft)

B

A

D

E

C

B

F
8 x 1.25 mm
22 N·m
(2.2 kgf·m, 16 lbf·ft)

11. Install the water pump:

• K20Z2 engine (see page 10-6)
• K20Z3 engine (see page 10-7)

12. Install the thermostat housing (A) with a new O-ring

(B).

13. Clean and dry the water passage mating surfaces.

14. Apply liquid gasket, P/N 08717-0004, 08718-0001,

08718-0003, or 08718-0009, evenly to the engine
block mating surface of the water passage, and to
the inside edge of the threaded bolt holes. Install
the component within 5 minutes of applying the
liquid gasket.

NOTE:

• If you apply liquid gasket P/N 08718-0012, the

component must be install within 4 minutes.

• If too much time has passed after applying the

liquid gasket, remove the old liquid gasket and
residue, then reapply new liquid gasket.

15. Install the water passage (A) with a new O-ring (B).

NOTE:

• Wait at least 30 minutes before filling the engine

with coolant.

• Do not run the engine for at least 3 hours after

installing the water passage.

16. Connect the PCV hose (C).

17. Install the connecting pipe (A) with a new O-ring (B).

18. Connect the lower radiator hose (C) and the water

bypass hose (D), and install the harness clamp (E).

19. Tighten the bolt (F) securing the connecting pipe.

Replace.

Apply liquid gasket
along the broken line.

Replace.

Replace.

08/08/21 14:40:00 61SNR030_100_0012

01

02

SNR9AEAA14400025393KDAT00

Removal — K20Z2 engine

10-13

10-13

EGR Passage Removal and
Installation

A

B

A

B

C

20. Install the intake manifold:

• K20Z2 engine (see page 9-4)
• K20Z3 engine (see page 9-9)

21. Install the A/C compressor (see step 28 on page

5-19).

22. Install the A/C condenser fan shroud assembly.

23. Install the alternator (see page 4-36).

24. 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).

25. Clean up any spilled engine coolant.

1. Drain the engine coolant (see page 10-8).

2. Remove the air cleaner assembly (see page 11-345).

3. Remove the harness holder (A) from the bracket,

then remove the harness holder bracket (B).

4. Disconnect the upper radiator hose (A), the heater

hose (B), and the water bypass hose (C).

08/08/21 14:40:01 61SNR030_100_0013

01

02

SNR9AEAA14400025393KDAT00

Removal — K20Z2 engine

10-13

10-13

EGR Passage Removal and
Installation

A

B

A

B

C

20. Install the intake manifold:

• K20Z2 engine (see page 9-4)
• K20Z3 engine (see page 9-9)

21. Install the A/C compressor (see step 28 on page

5-19).

22. Install the A/C condenser fan shroud assembly.

23. Install the alternator (see page 4-36).

24. 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).

25. Clean up any spilled engine coolant.

1. Drain the engine coolant (see page 10-8).

2. Remove the air cleaner assembly (see page 11-345).

3. Remove the harness holder (A) from the bracket,

then remove the harness holder bracket (B).

4. Disconnect the upper radiator hose (A), the heater

hose (B), and the water bypass hose (C).

08/08/21 14:40:01 61SNR030_100_0013

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