HEAD OF PISTON TOTAL RECONDITION (GROOVES AND COMBUSTION AREA)

                  PISTON GROOVES OF PISTON HEAD RECONDITION

    •     Collection of piston crown
    •     Cleaning  and sandblast
    •     Visual inspection
    •     Initial  measurements
    •     Turning of lathe (cleaning of all surfaces of grooves
           abstraction of neuron, by any chance burns)
    •     Checking in the region of grooves for the finding by
           any chance crack with method DYE - CHECK
    •     Warm-up in 250o  C
    •     Recondition of all grooves using for material wire S2
           with the method of sunk arc. (SUBMERGED ARC METHOD).
    •     Fired  of head in 650 o C
    •     Turning of lathe of this, opening of new grooves base
           of drawing in the constructional meters
    •     Chromium took place at grooves  thickness  upper surface 0.3 mm                   chrome and lower surface 0.5mm chrome per side in all grooves
           and  rectify of surfaces of grooves
    •     Final inspection of the piston crown
    •     Tackling of head with the elements of our work shop


 
           COMBUSTION AREA OF PISTON  HEAD RECONDITION

    •     Cleaning by sandblasting
    •     Initial measurements
    •     Turning of lathe in the space of combustion and in the diameter
    •     Checking in the region of space of combustion for the finding
           by any chance crack with method DYE – CHECK 
    •     Throughout opening crack
    •     Warm-up in 250[o]C
    •     Welding crack with basic electrode manually-operated  by AWSA                   5.5 E 9018-G
    •     Reconditioning of all space of combustion with wire S2 MO
           with automatic welding with the method of sunk arc                                       (SUBMERGED ARC METHOD)
    •     Fired at 650[o]
    •     Turning of lathe in final dimensions of constructor
    •     Opening of new holes
    •     Tackling of head with the elements of our work shop