Nissan 11090-8J100 Head Assy-Cylinder,LH

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Begin by draining the coolant.

Position the new cylinder head gasket over the dowel pins on the block, then set the head on the block without disturbing the gasket.

Remove old sealant from the rear timing chain cover and bolts, apply RTV sealant to the sealing surfaces, install new O-rings, and position the rear timing chain cover, tightening the bolts to the specified torque.

To remove a valve, compress the springs on the first valve with a spring compressor, remove the valve stem locks, carefully release the spring compressor, and then remove the retainer, spring, and spring seat (if used). After that, pull the valve out of the cylinder head and remove the oil seal from the guide.

Label and disconnect the hoses and electrical harness connectors at the timing belt end of the engine.

Install the valves with light oiling on the stems into the valve guides. Install the valve spring seat(s) in place on the cylinder head. For SOHC engines, install the outer valve spring seat first, then the inner valve spring seat second. After positioning the valve spring seat(s) correctly, install the valve seals over the top of the valve tips by hand, using the stem of the valves as a guide. To install the oil seals firmly over the guides, use a seal installation tool or an appropriate-size deep socket, gently tapping each seal into place until it is properly seated.

Clean all the valve springs, spring seats, valve stem locks, and retainers with solvent and dry them thoroughly, doing the components from one valve at a time to avoid mixing up the parts.