Acura CSX. Instruction — page 72

*05

*06

*03

*04

9-10

Intake Manifold and Exhaust System

A

B

C

B

C

A

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

B

C

A

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

8. Connect the positive crankcase ventilation (PCV)

hose (A), the evaporative emission (EVAP) canister
hose (B) and the brake booster vacuum hose (C).

9. Install the harness holder (A) to the bracket, then

install the ground cable (B) and the harness clamp
bracket (C).

10. Connect the engine wire harness connectors, and

install the wire harness clamps to the intake
manifold:

• Four fuel injector connectors
• Manifold absolute pressure (MAP) sensor

connector

• Throttle actuator connector

11. Install the intake air duct (A), then connect the

vacuum hose (B) and breather pipe (C).

12. Install the engine cover.

13. Inspect for fuel leaks. Turn the ignition switch to

ON (II) (do not operate the starter) so the fuel pump
runs for about 2 seconds and pressurizes the fuel
line. Repeat this operation three times, then check
for fuel leakage at any point in the fuel line.

14. Clean up any spilled engine coolant.

15. After installation, check that all tubes, hoses and

connectors are installed correctly.

16. 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).

01

01

03

SNR9A00A18400025501KDAT00

9-11

Exhaust Manifold Removal and Installation

A

B

A

B

1. Relieve the fuel pressure (see page 11-322).

2. Loosen the drain plug in the radiator, and drain the

engine coolant (see page 10-8).

3. Remove the under-cowl panel (see step 4 on page

20-164).

4. Disconnect the evaporative emission (EVAP)

canister hose (A) and the brake booster vacuum
hose (B).

5. Remove the quick-connect fitting cover (A), then

disconnect the fuel feed hose (B) (see page 11-329).

6. Disconnect the heater hoses.

7. Remove the rocker arm oil control valve (see page

11-296).

8. Remove the intermediate shaft heat shield (see

step 3 on page 16-23).

*01

9-12

Intake Manifold and Exhaust System

EXHAUST MANIFOLD

COVER

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

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

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

GASKET

GASKET

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

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

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

EXHAUST MANIFOLD BRACKET

HEAT SHIELD

9. Remove the cover and the exhaust manifold bracket, then remove the exhaust manifold.

10. Install the exhaust manifold, and tighten the bolts and nuts in a crisscross pattern in three steps, beginning with

the inner bolt.

11. Install the other parts in the reverse order of removal.

12. Inspect for leaks. Turn the ignition switch to ON (II) (do not operate the starter) so the fuel pump runs for about

2 seconds and pressurizes the fuel line. Repeat this operation three times, then check for fuel leakage at any point
in the fuel line.

13. 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).

Tighten the bolts in steps,
alternating side-to-side.

Replace.

Replace.

Replace.

*01

SNR9AEAA18400025601KBAT00

K20Z2 engine

9-13

Exhaust Pipe and Muffler Replacement

6 x 1.0 mm
10 N·m
(1.0 kgf·m, 7.2 lbf·ft)

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

HEAT SHIELD

GASKET

MUFFLER

EXHAUST PIPE B

SELF-LOCKING NUTS
10 x 1.25 mm
33 N·m (3.4 kgf·m, 25 lbf·ft)

GASKET

GASKET

THREE WAY CATALYTIC CONVERTER
(TWC) ASSEMBLY

SECONDARY HEATED
OXYGEN SENSOR
(SECONDARY HO2S)
44 N·m (4.5 kgf·m, 33 lbf·ft)

AIR FUEL RATIO (A/F) SENSOR
44 N·m (4.5 kgf·m, 33 lbf·ft)

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

6 x 1.0 mm
10 N·m
(1.0 kgf·m, 7.2 lbf·ft)

NOTE: Use new gaskets and self-locking nuts when reassembling.

Tighten the bolts in steps,
alternating side-to-side.

Replace.

Replace.

Replace.

Replace.

Tighten the bolts in steps,
alternating side-to-side.

Оцените статью
Инструкции по ремонту
Добавить комментарий