Nissan Altima 2007-2012 Service Manual: Oil seal

Removal and Installation of Valve Oil Seal


1. Remove camshaft. Refer to EM-41, "Removal and Installation".

2. Remove valve lifter. Refer to EM-41, "Removal and Installation".

3. Rotate crankshaft, and set piston whose oil seal is to removed to top dead center. This prevents valve from dropping inside cylinder.

CAUTION: When rotating crankshaft, be careful to avoid scarring the front cover with the timing chain.

4. Remove valve collet, valve spring retainer and valve spring using Tool.

5. Remove valve oil seal using Tool.

5. Remove valve oil seal using Tool.

Tool number : KV10107902 (J-38959)



1. Apply new engine oil to new valve oil seal joint surface and seal lip.

2. Press in valve oil seal to the position shown using Tool.

Oil seal installed height : 12.1 mm (0.476 in)

Tool number : KV10115600 (J-38958)

3. Installation of the remaining components is in the reverse order of

3. Installation of the remaining components is in the reverse order of removal.

Removal and Installation of Front Oil Seal


1. Remove the following parts:

    Timing chain
    Removal and Installation 1. O-rings 2. Camshaft sprocket (INT) 3. Camshaft sprocket (EXH) 4. Chain tensioner 5. Spring 6. Chain tensioner plunger 7. Timing chain slack guide 8. Timing chain ...

    Cylinder head
    Removal and Installation 1. Cylinder head 2. Cylinder head gasket 3. Cylinder head bolt A. Follow installation procedure REMOVAL 1. Remove the engine and transaxle assembly. Refer to EM-72, ...

    Other materials:

    M&A branch line circuit
    Diagnosis Procedure INSPECTION PROCEDURE 1.CHECK CONNECTOR 1. Turn the ignition switch OFF. 2. Disconnect the battery cable from the negative terminal. 3. Check the terminals and connectors of the combination meter for damage, bend and loose connection (unit side and connector side). ...

    Using the system
    The NISSAN Voice Recognition system allows hands-free operation of the Bluetooth® Phone System. If the vehicle is in motion, some commands may not be available so full attention may be given to vehicle operation. Initialization When the ignition switch is placed in the ON position, NISSAN ...

    Navigation system (sedan)
    System Diagram System Description NOTE: Refer to NAVI System Owner's Manual for system operation. The navigation system periodically calculates the vehicle's current position according to the following three signals: Travel distance of the vehicle as determined by the vehicle speed sensor, t ...