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Service valves

In view of the complex nature of the procedure and the need to use special tools and equipment, maintenance of valves and their seats and guides, commonly referred to as the valve works should be carried out as a mechanic-professional.

Mechanics and lover of forces will conduct removal and disassembly of the cylinder head, the implementation of the preliminary cleaning and check the status of the components, and then head back to be collected and delivered to the valve in the workshop car service. Visual inspection will help you to find out the condition of the components of the cylinder head and valve train and define the scope and nature of the upcoming recovery. Based on the analysis of available information, you can determine which replacement parts may be needed when performing maintenance procedures specialist valves.

Specialist dealer branch or workshop service centers carry out the removal of valves and their springs and will be engaged in repairing or replacing the valves and valve seats, restoration guides, check and replacement (if necessary) of plates (or swivel mount) springs and crackers of cutting locks, replacement of stem seals valve assembly of components and checking the mounting height of the valve springs. Also, if necessary, will be made Machining head in order to restore flatness its mating surface. V8 engines on both heads sfrezerovany must have the same depth, and if the detached metal layer thicker than 0.5 mm, the lower and lateral surface mating the inlet conduit must be handled appropriately in order to adequately align all channels and holes.

Bore valve seats should be done in the studio Car with a special machine (see. Photo) - a new alignment of the seat with respect to the valve guide made by means centered on the beard, and having a well-defined shape of the grindstone.

This treatment provides absolute flatness deformed the mating surfaces.

After the professional work of the valve head must acquire new characteristics. Returning from the studio head before installation on the engine should be carefully cleaned to remove abrasive and fine metal particles that may remain after the machining head and lapping valves. Using compressed air, carefully blow all the little holes, channels and cavities.