Ford 4M5Z-6049-SA Cylinder Head Assembly

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Remove the timing belt or timing chain, and then remove the camshafts.

1. Ensure the mating surfaces of the cylinder head and block are perfectly clean. 2. Check the mating surfaces for nicks, deep scratches, and other damage. 3. Use a straightedge to check for warpage of the cylinder head gasket surface. 4. Clean the mating surfaces with a clean shop towel and solvent as needed. 5. Ensure the two locating dowels are in position in the cylinder block and that all cylinder head bolt holes are free of contamination. 6. Install new cylinder head gaskets on the block, over the locating dowels. 7. Carefully install the cylinder heads, ensuring they fit properly over the locating dowels. 8. Install new cylinder head bolts and turn down by hand until snug.

The head bolts are torque-to-yield type and cannot be reused; a set of NEW head bolts must be obtained.

If only one cylinder head requires removal, disregard the steps for the other cylinder head. For the rear cylinder head, you only need to remove the timing chain, camshafts, and rocker arms from the rear cylinder head; the front can remain installed. If the front cylinder head must be removed, you must first remove the rear timing chain for access to the front chain, while the rear camshafts and rocker arms can remain installed.