Ford 3S7Z-6049-BB Cylinder Head Assembly

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Ensure the locating dowels are in position in the cylinder block and that all cylinder head bolt holes are free from oil. Apply a small dab of RTV sealant at the timing chain end of the engine.

If the engine has been severely overheated, it is best to assume that the cylinder head is warped and to check carefully for signs of this.

Remove the camshaft(s) and cam followers (refer to Chapter 2A, 2B, or 2C).

It is preferable to keep the front wheels on the ground as much as possible to make working on the top of the engine easier. Once the right-hand engine mount is removed, further support for the engine is needed if the front of the car is raised.

15. Disconnect the radio capacitor from the side of the ignition coil pack. 16. Remove the ignition coil assembly. 17. Remove the accessory bracket mounting bolts and position it off to the side. 18. Remove the hydraulic chain tensioner. 19. Remove the bolt from the camshaft sprocket, then remove the Torx bolt below it in the head, which secures the camshaft chain cassette to the head. 20. Remove the bolt holding the chain cassette to the head and pull up on the chain while slipping the sprocket out. Keep the slack out of the chain and tie it to the cassette with a large rubber band.

Position the intake manifold on the engine. Install the intake manifold bolts and tighten them to the torque, in the sequence.

Wear safety goggles when using compressed air.

Remove all traces of old gasket material from the head and cylinder block mating surfaces, and clean the surfaces with a rag soaked in lacquer thinner or acetone.

Disconnect the cable from the negative battery terminal.

Decarbonizing chemicals are caustic and should be used with caution. It is important to follow the instructions on the container.

The remainder of the installation is the reverse of the removal steps. Finally, run the engine and check for oil, coolant, and vacuum leaks.

1. Lubricate and install each valve. 2. Install new seals on each of the valve stems, ensuring not to twist or cock the seals during installation.

Check the installed valve spring height with a ruler graduated in 1/32-inch increments or a dial caliper. The measurement is taken from the top of each spring seat or shim(s) to the bottom of the retainer.

Remove the upper intake manifold and the lower intake manifold.

Remove the ignition coil bracket and dipstick tube.

Refill the cooling system.

Turn the camshaft until the pin is in the five o'clock position to avoid damage to the valves. Check the camshaft lobes to verify proper position.

Remove the cylinder head bolts and discard all but one. Compare the one old bolt with the new bolts to confirm that they are correct.

Remove all built-up scale from the coolant passages.

Smear a little grease in the gap and clean it thoroughly after each piston is cleaned.