Suzuki: Engine K6A-YH6. Manual - part 13

7-6

REPAIR

7

Oxygen Sensor

Removal and Installation

See Figure 7-11.

Figure 7-11

1.

Remove oxygen sensor (1).

2.

Inspect oxygen sensor. Replace as needed.

Installation Notes

Apply Anti-Seize Compound to the threads of oxygen 
sensor before installation.

Install oxygen sensor by reversing the order of removal.

Heat Shield

Removal and Installation

See Figures 7-12 and 7-13.

Figure 7-12

1.

Remove cap screws (1) and lower half of heat shield 
(2).

Figure 7-13

2.

Remove cap screws (3) and upper half of heat shield 
(4).

Installation Note

Install heat shield by reversing order of removal.

Required Materials

Anti-Seize Compound

TN0699

1

TN0729

1

1

2

TN0730

3

3

4

REPAIR

7-7

7

Exhaust Manifold

Removal

See Figure 7-14.

Figure 7-14

1.

Remove cap screws (4) and nuts (2).

2.

Remove exhaust manifold (1) and gasket (3).

Inspection

See Figure 7-15.

Figure 7-15

1.

Check exhaust manifold for cracks, damage, and 
distortion.

2.

Using a straightedge and a feeler gauge, inspect the 
mating face for distortion. Place the straightedge 
across bolt hole centers at the locations indicated. 
Measure any gaps with the feeler gauge. If the 
measurement exceeds the limit, repair or replace 
exhaust manifold.

Exhaust Manifold Distortion Limit: 0.003 in.
(0.07 mm)

Installation

See Figures 7-16 and 7-17.

Figure 7-16

NOTES

Clean exhaust manifold and cylinder head gasket 
surfaces before installation.

Always use new O-rings, gaskets, and seals.

1.

Install new exhaust manifold gasket (1).

Figure 7-17

2.

Install exhaust manifold (2) using cap screws (5) and 
nuts (3). Tighten to specification.

Exhaust Manifold Torque: 204 lb-in. (23 N•m)

Installation Note

Start engine and check for exhaust leaks.

TN0731

1

2

2

4

3

TN0734

TN0732

1

TN0731

2

3

3

5

4

7-8

REPAIR

7

7.2 Electrical System

Ignition Coils

Removal and Installation

See Figure 7-18.

Figure 7-18

1.

Remove cap screws (1).

2.

Remove ignition coils (2).

3.

Inspect ignition coils. Replace as needed. 

Installation Note

Install ignition coils by reversing the order of removal.

Spark Plugs

Removal and Installation

See Figures 7-19 and 7-20.

Figure 7-19

1.

Remove ignition coils. (See “Ignition Coils” on 
page 7-8.)

2.

Remove spark plugs (1).

Figure 7-20

3.

Inspect spark plug (2) for signs of wear or damage. 
Replace as needed.

4.

Set spark plug electrode gap (3) to specification.

Spark Plug Gap: 0.031—0.035 in. (0.8—0.9 mm)

Installation Note

Install spark plugs by reversing the order of removal.

TN0695

1

2

TN0697

1

TN0698

2

3

REPAIR

7-9

7

7.3 Fuel System

Injectors

Removal

See Figures 7-21 and 7-22.

!

WARNING

Figure 7-21

1.

Remove cap screws (3).

2.

Remove fuel rail (1) and injectors (2) as an assembly.

Figure 7-22

3.

Remove injectors (5) from fuel rail (4).

4.

Replace as needed. 

Installation

See Figures 7-23 and 7-24.

Figure 7-23

NOTE

Always use new O-rings, gaskets, and seals.

1.

Install injectors (5) into fuel rail (1) using new O-rings 
(3) and isolators (2 and 4).

Figure 7-24

2.

Install fuel rail (6) and injectors (7) as an assembly. 
Secure with cap screws (8).

Fuel system may be under pressure. Relieve fuel 
pressure before servicing system.

TN0738

1

2

3

TN0739

4

5

5

TN0739

5

1

4

3

2

3

2

TN0738

6

7

8