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Focus 2004.75 (07.2004-)

Engine - 1.6L Duratec-16V Ti-VCT (Sigma) - Valve Clearance Adjustment Focus 2004.75 (07/2004-)
General Procedures

General Equipment
Feeler gauges
All vehicles
  1. NOTE:
    NOTE:Only rotate the crankshaft in the normal direction of rotation.
    Rotate the crankshaft until piston No. 1 is at top dead center (TDC).
  1. Remove the valve cover.
    For additional information, refer to: Valve Cover (303-01B Engine - 1.6L Duratec-16V Ti-VCT (Sigma), In-vehicle Repair).

  1. NOTE:
    NOTE:Note down each cylinder number and the valve clearances measured.
    Using a suitable set of feeler gauges, measure the valve clearances.
  1. NOTE:
    NOTE:Only rotate the crankshaft in the normal direction of rotation.
    Rotate the crankshaft until each piston is at TDC and measure the valve clearances.
  1. NOTE:
    NOTE:Only carry out the following steps when the valve clearance(s) require adjustment.
    For additional information, refer to: Specifications (303-01B Engine - 1.6L Duratec-16V Ti-VCT (Sigma), Specifications).
    Remove the camshafts.
    For additional information, refer to: Camshafts (303-01B Engine - 1.6L Duratec-16V Ti-VCT (Sigma), In-vehicle Repair).
  1. NOTE:
    NOTE:The number on the valve tappet is the tappet thickness, however only the decimal digits are marked (for example 650 = 3.650).
    Determine the valve tappet thickness required:
    1. Remove the valve tappet and read the thickness from the underside.
    1. Calculate the valve tappet thickness required = (thickness of currently installed valve tappet + the measured valve clearance - the required valve clearance).
      For additional information, refer to: Specifications (303-01B Engine - 1.6L Duratec-16V Ti-VCT (Sigma), Specifications).
    1. Install the correct valve tappet.
  1. NOTE:
    NOTE:Do not install the timing belt at this stage.
    Install the camshafts.
    For additional information, refer to: Camshafts (303-01B Engine - 1.6L Duratec-16V Ti-VCT (Sigma), In-vehicle Repair).
  1. NOTE:
    NOTE:Rotate the camshafts and measure the valve clearances.
    Measure the valve clearances and repeat this procedure as necessary until all valve clearances are within the specified tolerance.
  1. Install the timing belt.
    For additional information, refer to: Timing Belt - Vehicles Built Up To: 04/2005 (303-01B Engine - 1.6L Duratec-16V Ti-VCT (Sigma), In-vehicle Repair).
  1. Install the valve cover.
    For additional information, refer to: Valve Cover (303-01B Engine - 1.6L Duratec-16V Ti-VCT (Sigma), In-vehicle Repair).
Vehicles with front and rear power windows
  1. Initialize the door window motors.
    For additional information, refer to: Door Window Motor Initialization (501-11 Glass, Frames and Mechanisms, General Procedures).

In-vehicle Repair > < Diagnosis and Testing|Engine