Lincoln F3LY-6505-A Valve - Exhaust

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Because of the work challenge and given the fact that the work requires the use of specialized tools and equipment, it is recommended that the main work of cutting and grinding of the valves, the seats and the guides as they are widely referred to as the 'valve job', should best be done by a professional. It is easier for a home mechanic to pull the head, preliminary wash and examine the head and then take the head to a dealer service department or an automotive machine shop for the real service to be done on it. Performing the inspection enables identification of the state of the head and valve train parts and be aware of required work and new parts when interacting with an automotive machine shop. The dealer service department or the automotive machine shop will perform the valve and spring removal, valve and valve seat reconditioning or replacement, valve guide reconditioning, valve spring, spring retainer, rotator and keeper inspection and replacement when necessary, valve seal replacement, reconstruction of valves and valve components, and determination of the installed spring height. Also the surface of the cylinder head gasket will be ground if it is warped. After the valve job is done by a professional the head turn out to be like new with no or with negligible wear possible. After removal, it must be cleaned for the second time and, before being put in place on the engine, a thorough removal of any metal chips and other abrasive particles resulting from the valve work or the honing of the head must be accomplished with the aid of compressed air to clear all the oil ways and holes.

Because of the nature of the position and the specific instruments and equipment needed, performing the valve job as it takes to service the valves, valve seats, and valve guides should be handled by an expert. An amateur can unbolt the head, open it to inspection and semi-cleaning before delivering the assembly to a dealership or an automotive machine where the actual work will be done. It makes it possible to determine the state of components of heads and valve trains, know what work is still required, what new parts may be needed when cooperating with an automotive machine shop. The dealer service department or automotive machine shop is retained for the relief of valves and springs, valve face necessary reconditioning or new, reconditioning of valve guides, checking and replacing of valve springs, spring retainers, rotators and keepers if necessary, valve seal replacement, assembly of valve components, and correct installed spring height check also. Also, if its surface has warping, the cylinder head gasket surface will be resurfaced. After the valve job is done by a professional the head will be almost as new as it was when it first came out the factory. On its arrival, the head must also be washed to reduce the amount of metal particles and abrasive grit that might still be present after serving the valves or resurfacing, and compressed air if available should be used to blow out all the oil holes and passages before fitting on the engine.