Toyota
Nissan Versa
 Sedan Service Manual
Engine » Engine mechanical (EM)
Exhaust manifold

Exploded View

1. Exhaust manifold cover 2. Harness bracket 3. Airfuel ratio sensor 1 4. Exhaust manifold stay 5. Heat insulator 6. Exhaust manifold 7. Exhaust manifold cover 8. Gasket

: Engine front

Removal and Installation

REMOVAL

  1. Remove air duct (inlet), air duct and air cleaner assembly.
  2. Remove exhaust center tube and front tube.
  3. Remove the airfuel ratio sensor harness bracket from the cylinder head on the right rear side.
  4. Remove exhaust manifold cover.
  5. Disconnect the harness from airfuel ratio sensor 1.
  6. Remove exhaust manifold side bolt of exhaust manifold stay.
  7. Remove exhaust manifold.
  • Loosen nuts in reverse order as shown.

Exhaust manifold

  1. Use Tool (A) to remove the airfuel ratio sensor 1 (if necessary).

Tool number : KV10117100 ( - )

CAUTION:

  • Handle the airfuel ratio sensor carefully and avoid impacts.
  • Before installing a new airfuel ratio sensor 1, clean the exhaust tube threads using suitable tool and approved antiseize lubricant.
  • If airfuel ratio sensor is dropped onto a hard surface, such as a concrete floor, from a height of 0.5 m or more, discard the sensor and use a new one.

Exhaust manifold

Oxygen sensor thread cleaner : - (J4389712)

Oxygen sensor thread cleaner : - (J4389718)

  1. Remove exhaust manifold gasket and discard.
  2. Remove stud bolt using suitable tool from cylinder head (if necessary)

INSPECTION AFTER REMOVAL

Mounting Surface Distortion

  • Using suitable tools (A) and (B), check the surface distortion of the exhaust manifold mating surface as shown.

  • Replace exhaust manifold if it exceeds the limit.

Exhaust manifold

INSTALLATION

Installation is in the reverse order of removal. Note the following:

Exhaust manifold

1. Tighten nuts in numerical order as shown.

Exhaust manifold

2. Tighten nuts in numerical order to the specified torque again.

Airfuel ratio sensor 1

  • Use Tool (A) to install the airfuel ratio sensor 1 (if removed).

Tool number : KV10117100 ( - )

CAUTION:

  • Handle it carefully and avoid impacts.
  • Before installing a new airfuel ratio sensor 1, clean the exhaust tube threads using suitable tool and approved antiseize lubricant.
  • Do not overtighten the airfuel ratio sensor 1. Doing so may damage the airfuel ratio sensor 1, resulting in the MIL coming on.

Exhaust manifold

Oxygen sensor thread cleaner : - (J4389712)

Oxygen sensor thread cleaner : - (J4389718)

INSPECTION AFTER INSTALLATION

Inspection

- Start engine and raise engine speed to check for exhaust leaks.

    More about «Engine mechanical (EM)»:

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    Preparation

    Camshaft valve clearance

    Compression pressure

    Noise, vibration and harshness (NVH) troubleshooting

    Drive belt

    Air cleaner filter 

    Spark plug

    Drive belt idler pulley

    Air cleaner and air duct

    Intake manifold

    Exhaust manifold

    Oil pan (lower)

    Fuel injector and fuel tube

    Ignition coil, spark plug and rocker cover

    Timing chain

    Camshaft

    Valve oil seal

    Front oil seal

    Rear oil seal

    Cylinder head

    Engine assembly

    Engine stand setting

    Oil pan (upper) and oil strainer

    Cylinder block

    How to select piston and bearing

    Service data and specifications (sds)

    Nissan Versa Sedan Service Manual / Engine / Engine mechanical (EM) / Exhaust manifold

    Nissan Versa Sedan Service Manual

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