Ford Focus manuals

Ford Focus Service Manual: Valve Seals

Special Tool(s)

Compressor, Valve Spring 303-300 (T87C-6565-A)

Compressor, Valve Spring 303-350 (T89P-6565-A)

Compressor, Valve Spring 303-472 (T94P-6565-AH)

Installer, Valve Stem Oil Seal 303-470 (T94P-6510-CH)

Remover, Valve Stem Oil Seal 303-468 (T94P-6510-AH)

Slide Hammer
307-005 (T59L-100-B)

Material
Item Specification
Motorcraft® SAE 5W-20 Premium Synthetic Blend Motor Oil (US); Motorcraft® SAE 5W-20 Super Premium Motor Oil (Canada) XO-5W20-QSP (US); CXO-5W20-LSP12 (Canada) WSS-M2C945-A
Motorcraft® Multi-Purpose Grease XL-5 ESB-M1C93-B

Removal

NOTICE: During engine repair procedures, cleanliness is extremely important. Any foreign material, including any material created while cleaning gasket surfaces, that enters the oil passages, coolant passages or the oil pan can cause engine failure.

  1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to Section  100-02.
  1. Remove the camshafts. For additional information, refer to Camshafts in this section.
  1. NOTE:

    If the camshafts and valve tappets are to be reused, mark the location of the valve tappets to make sure they are assembled in their original positions.

    NOTE:

    The number on the valve tappets only reflects the digits that follow the decimal. For example, a tappet with the number 0.650 has the thickness of 3.650 mm.

    Remove and inspect the valve tappets. For additional information, refer to Section  303-00.
  1. Remove the spark plugs. For additional information, refer to Section  303-07.
  1. NOTICE: Use compressed air at 7 to 10 bars (100-150 psi). Do not disconnect the compressed air from the cylinder until the valve spring, valve spring retainer and valve collet is installed. Any loss of air pressure will allow the valve to fall into the cylinder.

    Connect the compressed air supply to the No. 1 cylinder.

  1. NOTE:

    Place all parts in order to one side.

    Apply compressed air to the cylinder and remove the valve spring.

    • Using the Valve Spring Compressors, compress the valve spring and remove the valve collet, using some multi-purpose grease and a small screwdriver.
    • Remove the valve spring retainer and the valve spring.

  1. Using the Valve Stem Oil Seal Remover and Slide Hammer, remove and discard the valve seal.

Installation

  1. Install the valve stem seal installation sleeve.

  1. Using the Valve Stem Oil Seal Installer, install the valve seal.

  1. NOTE:

    Check the seating of the valve collet.

    Using the Valve Spring Compressors, install the valve spring.

    • Insert the valve spring and the valve spring retainer.
    • Compress the valve spring and install the valve collet using some multi-purpose grease and a small screwdriver.

  1. Disconnect the compressed air supply.
  1. Repeat the appropriate removal and installation steps for all of the other cylinders.
  1. Install the spark plugs. For additional information, refer to Section  303-07.
  1. Coat the valve tappets with clean engine oil and insert them.
  1. Install the camshafts. For additional information, refer to Camshafts in this section.
Valve Guide Inner Diameter
NOTE: Refer to the appropriate Section 303-01 for the specification. NOTE: Valve guides tend to wear in an hourglass pattern. The ball gauge can be inserted into the combustion chamber side o ...

Valve Seat Inspection
Valve and Seat Refacing Measurements NOTE: Refer to the appropriate Section 303-01 for the specification. NOTE: After grinding valves or valve seats, check valve clearance. Check the valve ...

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