Lincoln 5R3Z-6049-B Cylinder Head Assembly

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Clean the valve train components with solvent and dry them thoroughly, ensuring not to mix them up during the cleaning process.

Damage may result to either the pistons or valve train parts.

The head should be thoroughly cleaned and inspected, and if a complete engine overhaul is being done, finish the engine disassembly procedures before starting the cylinder head cleaning and inspection process.

On all engines, lubricate and install the valves, then install new seals on each of the valve guides. Using a hammer and deep socket, gently tap each seal into place until it's seated on the guide. On V6 models, use a hammer and a seal installer to drive the seal onto the valve guide/head casting boss, ensuring the valve spring seat is in place first. Don't twist or cock the seals during installation or they will not seat properly on the valve stems.

Store the cylinder heads on blocks of wood to prevent damage to the gasket sealing surfaces and avoid sliding them across surfaces to prevent gouging.

The valve covers, pushrods, rocker arms, upper intake plenum, lower intake manifold, and exhaust manifold must be removed.

The first step involves the removal of the intake and exhaust valves and related components, including the rocker arm nuts, pivot balls, and rocker arms from the cylinder head studs.

The manufacturer recommends that the engine be removed from the vehicle to perform the cylinder head removal procedure.

Inspect the pushrod ends for scuffing and excessive wear, rolling each pushrod on a flat surface to check for bending.

Apply moly-base grease to the rocker arm faces and the fulcrums, then install the rocker arms and fulcrums on the cylinder head studs.