RECONDITIONING PROCEDURE EXHAUST VALVE SEAT

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1. Cleaning / inspection mpi/dye check

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2. Premaching of seating area and o-ring grooves

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3. O-ring grooves / base layer St.St by MIG welding Seating layer Stellite/hardfacing by Plasma welding

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4. Final machining by cnc

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5. Reconditioned seats after final inspection