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Home >> Porsche >> 2012 >> Panamera Turbo >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> 15 - Engine - Cylinder Head, Valve Control 4.8L Turbo -- 970 - PANAMERA (970) >> WM, 155519 Removing And Installing Hydraulic Valve For Valve Lift Switchover (Variable Valve Lift Adjustment) >> Removing Hydraulic Valve For Valve Lift Switchover

Removing Hydraulic Valve For Valve Lift Switchover

  1. Pull off cable plug for hydraulic valve and remove both screws.
    Fig 1: Camshafts, Cylinder Bank 1 To 4 Components Location
    G15198198Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Camshafts, cylinder bank 1 to 4

    1  Camshaft (outlet)
    2  Camshaft (Intake)
    3  Hydraulic valve for variable valve lift control
    4  Screw, M5 x 12
    5  Switching tappet (oil with engine oil)
    6  Bucket tappet (oil with engine oil)
    7  Plug
    8  Mounting saddle 1 to 4
    9  Plug
    10  Bearing locations (oil with engine oil)
    A  Direction of travel
    Fig 2: Camshafts, Cylinders 5 To 8 Components Location
    G15198199Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Camshafts, cylinders 5 to 8

    1  Switching tappet (oil with engine oil)
    2  Bucket tappet (oil with engine oil)
    3  Camshaft (intake)
    4  Hydraulic valve for variable valve lift control
    5  Screw, M5 x 12
    6  Camshaft (outlet)
    7  Plug
    8  Mounting saddle, cylinders 5 to 8
    9  Plug
    10  Bearing surfaces (oil with engine oil)
    A  Direction of travel
  2. Pull hydraulic valve out of cylinder head. Make sure that the sealing ring is also removed. If not, look for the sealing ring using a mirror and a torch.
  3. Clean front strainer of hydraulic valve with solvent naphtha. Replace hydraulic valve if damaged or heavily soiled.
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