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How to Remove Replace a Cylinder Head on a 6 9 Ford

The 6.9-liter engine that appears in Ford trucks from 1982 to 1994 has eight cylinders and uses indirect fuel injection. This engine is most common in larger trucks, beginning with the 1/2 ton F250 pickups. The cylinder head in a 6.9-liter Ford engine is a platform that sits on on top of the cylinder block. The procedure for replacing the cylinder head is generally the same for all vehicles with a 6.9-liter Ford engine.

Instructions

1

Disconnect the cables from the negative terminals of both batteries with a socket wrench. Drain the coolant from the radiator into a clean container, and store it for later use. Disconnect the shrouds from the radiator fan. Remove the radiator fan assembly with special tools T83T-6312-A and T83T-6312-B. Turn the mounting nut for the radiator fan clutch clockwise to loosen it.

2

Remove the electrical wiring from the alternator. Disconnect the mounting bolts for the alternator and the vacuum pump with a socket wrench. Remove the alternator and vacuum pump from the vehicle. Detach the hose for the heater from the cylinder head. Disconnect the fuel injection pump from the cover of the intake manifold with a socket wrench, and detach the intake manifold cover.

3

Raise the truck with a floor jack, and support it on jack stands. Remove the exhaust pipes from the exhaust manifolds. Release the clamp on the oil dipstick tube. Disconnect the mounting bolts that attach the oil dipstick tube to the cylinder head, and remove the oil dipstick tube from the vehicle. Lower the truck with the floor jack.

4

Disconnect the valve cover with a socket wrench. Remove the rocker arms and pushrods from the cylinder head. Record the position of each push rod and rocker arm as you remove them to ensure you install them to their original position. Remove the fuel injector nozzles and glow plugs from the engine.

5

Disconnect the mounting bolts for the cylinder head with a socket wrench. Attach lifting eyes to each end of the cylinder head with special tool T70P-6000. Lift the cylinder head with the lifting eyes, and remove it from the engine compartment.

6

Place the new cylinder head onto the engine block, while ensuring the pre-chambers dont fall into the cylinder bores. Coat the mounting bolts for the cylinder head with engine oil. Fasten the mounting bolts for the cylinder head, and tighten them in four separate passes with a socket wrench.

7

Coat the ends of the push rods with engine oil. Install the push rods in the positions you recorded in step four, and ensure the push rods are properly seated. Lubricate the tips of the valve stems with Lubriplate grease. Turn the crankshaft by hand to move its timing mark to the 11 oclock position. Install the rocker arms to their original, and tighten their mounting bolts to 27 foot-pounds with a torque wrench.

8

Replace the valve covers with a socket wrench. Install the intake manifold, and connect the fuel injection pump to the intake manifold. Attach the hose from the heater to the cylinder head. Install the alternator and vacuum pump to the engine, and connect the oil dip stick. Install the exhaust pipe to the exhaust manifolds, and attach the electrical wiring for the alternator. Connect the air cleaner to the engine.

9

Install the radiator clutch assembly with special tools T83T-6312A and T83T-6312B. Attach the cables to the negative battery terminals with a socket wrench. Fill the radiator with coolant, and start the engine. Check for leaks in the exhaust, coolant and fuel systems.