Valve Oil Seal

WARNING: This page is about a different car, the 2002 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.

Remove timing chain. Refer to "REMOVAL ".
Remove camshaft brackets and camshaft. Refer to "DISASSEMBLY ".

Fig 1: Attaching Compressor Assembly
Courtesy of NISSAN MOTOR CO., U.S.A.
Remove valve lifters and shims.
Remove valve spring with Tool.
Reinstall any parts removed in reverse order of removal.
Before removing valve spring, fix valve as follows.

Method A:

Piston concerned should be set at TDC to prevent valve from falling.

Method B:

Remove spark plug, then install air hose adapter into spark plug hole and apply air pressure to hold valves in place. Apply a pressure of 490 kPa (5 kg/cm ² , 71 psi).

Fig 2: Installing Air Hose Adaptor
Courtesy of NISSAN MOTOR CO., U.S.A.

Method C:

Install spark plug with suitable washer into spark plug hole from combustion chamber side.

Fig 3: Installing Spark Plug With Washer
Courtesy of NISSAN MOTOR CO., U.S.A.
Remove valve oil seal.

Fig 4: Removing Valve Oil Seal
Courtesy of NISSAN MOTOR CO., U.S.A.
Apply engine oil to new valve oil seal and install it with Tool.

Fig 5: Installing New Valve Oil Seal With Tool
Courtesy of NISSAN MOTOR CO., U.S.A.