Valve Seals: Removal
WARNING: This page is about a different car, the 2011 Mercury Milan, 2011 Lincoln MKZ, and 2011 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
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.
- With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to JACKING & LIFTING article.
- Remove the camshafts. For additional information, refer to CAMSHAFTS in this service information.
- Remove and inspect the valve tappets. For additional information, refer to ENGINE SYSTEM - GENERAL INFORMATION article.
- Remove the spark plugs. For additional information, refer to ENGINE IGNITION - 2.5L -- FUSION & MILAN (EXCEPT HYBRID) article.
- Connect the compressed air supply to the No. 1 cylinder.
- 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 grease and a small screwdriver.
- Remove the valve spring retainer and the valve spring.
- Using the Slide Hammer and the Valve Stem Oil Seal Remover, remove and discard the valve seal.
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.
NOTE:
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.
NOTE:
Place all parts in order to one side.