Nissan Altima 2007-2012 Service Manual: Oil seal

Removal and Installation of Valve Oil Seal

REMOVAL

1. Turn crankshaft until the cylinder requiring new oil seals is at TDC. This will prevent valve from dropping into cylinder.

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

2. Remove camshaft relating to valve oil seal to be removed. Refer to EM-177, "Removal and Installation".

3. Remove valve lifters. Refer to EM-177, "Removal and Installation".

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

CAUTION: When working, take care not to damage valve lifter holes.


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Camshaft
Removal and Installation 1. Camshaft position sensor bracket (RH) 2. Camshaft brackets 3. No. 1 camshaft bracket (RH) 4. Camshaft (EXH) RH 5. Camshaft (INT) RH 6. Cylinder head (RH) 7. Cylin ...

Cylinder head
Removal and Installation 1. Cylinder head bolt 2. Cylinder head 3. Cylinder head gasket 4. Engine block A. Follow installation procedure REMOVAL 1. Remove the intake and exhaust camshafts. Re ...

Other materials:

Brake precautions
Vacuum assisted brakes The brake booster aids braking by using engine vacuum. If the engine stops, you can stop the vehicle by depressing the brake pedal. However, greater foot pressure on the brake pedal will be required to stop the vehicle and stopping distance will be longer. Using the b ...

P0172 fuel injection system function
DTC Logic DTC DETECTION LOGIC With the Air/Fuel Mixture Ratio Self-Learning Control, the actual mixture ratio can be brought closely to the theoretical mixture ratio based on the mixture ratio feedback signal from the A/F sensors 1. The ECM calculates the necessary compensation to correct t ...

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). ...