Nissan Frontier. Manual — part 740

EXHAUST MANIFOLD AND THREE WAY CATALYST

EM-149

< REMOVAL AND INSTALLATION >

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Surface Distortion

• Check the surface distortion of the exhaust manifold mating sur-

face with straightedge and feeler gauge.

• If it exceeds the limit, replace exhaust manifold.

INSTALLATION (LH)

Installation is in the reverse order of removal.

Exhaust Manifold Gasket

Install the exhaust manifold gasket in direction as shown.
•

: Front

• A: Identification hole

Exhaust Manifold

• If exhaust manifold studs were removed, install them and tighten to specification.

• Install exhaust manifold and tighten nuts in numerical order as

shown.

CAUTION:

Use new exhaust manifold nuts for installation.

NOTE:

Tighten nuts No. 1 and 2 in two steps. The numerical order No. 7

and 8 show second step.

-

: Front

REMOVAL (RH)

1. Remove three way catalyst (RH). Refer to

EM-147, "Removal and Installation (Three Way Catalyst)"

.

2. Remove heat shield from lower dash panel.
3. Remove support bolts from A/T fluid charging pipe (A/T models). Refer to

TM-304, "Component"

.

4. Loosen nuts in reverse order as shown.

•

: Front

NOTE:

Disregard the numerical order No. 7 and 8 in removal.

5. Remove exhaust manifold (RH) and exhaust manifold cover (RH) together.

Limit : 0.3 mm (0.012 in)

PBIC1096E

AWBIA0726ZZ

AWBIA0725ZZ

AWBIA0727ZZ

EM-150

< REMOVAL AND INSTALLATION >

[VQ40DE]

EXHAUST MANIFOLD AND THREE WAY CATALYST

6. Remove gaskets.

CAUTION:

Cover engine openings to avoid entry of foreign materials.

INSPECTION AFTER REMOVAL

Surface Distortion

• Check the surface distortion of the exhaust manifold mating sur-

face with straightedge and feeler gauge.

• If it exceeds the limit, replace exhaust manifold.

INSTALLATION (RH)

Installation is in the reverse order of removal.

NOTE:

If necessary, a crowfoot may be used to tighten the exhaust manifold nuts.

Exhaust Manifold Gasket

Install the exhaust manifold gaskets in direction as shown.
•

: Front

• A: Identification hole

Exhaust Manifold

• If exhaust manifold studs were removed, install them and tighten to specification.

• Install exhaust manifold and tighten nuts in numerical order as

shown.

CAUTION:

Use new exhaust manifold nuts for installation.

NOTE:

Tighten nuts No. 1 and 2 in two steps. The numerical order No. 7

and 8 show second step.

-

: Front

Limit : 0.3 mm (0.012 in)

PBIC1096E

AWBIA0728ZZ

AWBIA0727ZZ

OIL PAN AND OIL STRAINER

EM-151

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OIL PAN AND OIL STRAINER

Exploded View

INFOID:0000000009478116

Removal and Installation

INFOID:0000000009478117

REMOVAL (LOWER)

WARNING:

To avoid the danger of being scalded, do not drain engine oil when engine is hot.

NOTE:

When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spill-

ing.
1. Remove the engine under cover. Refer to

EXT-15, "Removal and Installation"

.

2. Drain engine oil. Refer to

LU-23, "Changing Engine Oil"

.

3. Remove oil pan (lower) using the following steps.

1.

Oil pan (upper)

2.

Oil pressure switch

3.

O-ring

4.

Relief valve

5.

O-ring

6.

Oil cooler

7.

Connector bolt

8.

Oil filter

9.

Drain plug

10. Drain plug washer

11. Oil pan (lower)

12. Rear cover plate

13. Oil strainer

14

O-ring

15. Oil level gauge guide

16. Oil level gauge

PBIC2883E

EM-152

< REMOVAL AND INSTALLATION >

[VQ40DE]

OIL PAN AND OIL STRAINER

a. Remove the oil pan (lower) bolts using power tool in reverse

order as shown.

b. Insert Tool between the oil pan (lower) and the oil pan (upper).

CAUTION:

• Be careful not to damage the mating surfaces.

• Do not insert screwdriver, this will damage the mating

surfaces.

NOTE:

Tap (1) Tool to insert it and then slide (2) it by tapping on the side

of the Tool as shown.

INSPECTION AFTER REMOVAL

Clean oil strainer if any object attached.

INSTALLATION (LOWER)

1. Install oil pan (lower) as follows:
a. Use scraper to remove old liquid gasket from mating surfaces.

• Also remove old liquid gasket from mating surface of oil pan

(upper).

• Remove old liquid gasket from the bolt holes and thread.

CAUTION:

Do not scratch or damage the mating surfaces when clean-

ing off old liquid gasket.

b. Apply a continuous bead of liquid gasket using Tool to the oil

pan (lower) as shown.

Use Genuine RTV Silicone Sealant or equivalent. Refer to

GI-21, "Recommended Chemical Products and Sealants"

.

CAUTION:

Attaching should be done within 5 minutes after coating.

c.

Install oil pan (lower).

PBIC2890E

Tool number

: KV10111100 (J-37228)

WBIA0566E

PBIC2888E

Tool number

: WS39930000 (

—

)

PBIC2889E