Focus L4-2.3L VIN Z (2003)
3. NOTE: Check the seating of the valve collets.
Using the special tools, install the valve springs.
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Insert the valve springs and the valve spring retainers.
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Compress the valve springs and install the valve collets using some grease and a small screwdriver.
4. NOTE: Do not tighten the spark plug at this time.
Disconnect the compressed air supply and screw in the spark plug.
5. Repeat the appropriate steps for all the other cylinders.
6. Coat the valve tappets with clean engine oil and insert them.
7. Tighten the spark plugs.
8. Install the camshafts.