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How to Install a 98 Ford F150 4 6 Head Gasket

The Ford F150 is a 1/2-ton pickup truck that has been in continuous production since 1975. The 1998 model belongs the tenth generation of this series, which includes F150s made from 1997 to 2004. A 4.6-liter V-8 engine is one of the options available for the Ford F150. Each side of the engine has a cylinder head that covers the four cylinders on that side. The cylinder head gasket lies between the engine block and the cylinder head.

Instructions

1

Discharge the air conditioning system with a refrigerant recovery machine, if your vehicle is equipped with AC. This step requires a mechanic certified by the Environmental Protection Agency.

2

Remove the cable from the negative battery terminal with a socket wrench. Disconnect the valve covers, and remove the intake manifold from the engine block. Detach the timing chains from the crankshaft sprocket and camshaft sprocket. Disconnect both exhaust manifolds from the engine block. Disconnect the air compressor to obtain access to the cylinder heads if your vehicle has air conditioning.

3

Disconnect the retaining bolts from the heater hose with a socket wrench. Squeeze the hose clamp and pull it down the hose to release the clamp. Detach the heater hose from the cylinder head. Disconnect the mounting bolts from the cylinder head and pull the cylinder head from the engine block. Discard the gasket for the cylinder head and remove any remaining gasket material from the engine block with a gasket scraper.

4

Turn the crankshaft clockwise until the key way on the crankshaft points straight up, and clean the cylinder head with a shop rag. Place the the new gasket for the cylinder head gasket over the dowel pins on the engine block, then mount the cylinder head on the engine block.

5

Fasten new mounting bolts to the cylinder head by hand. Tighten the mounting bolts to between 27 and 31 foot-pounds on the first pass with a torque wrench. Tighten the bolts another 85 to 95 degrees with a socket wrench on the second pass. Tighten the bolts another 85 to 95 degrees on the third pass.

6

Connect the heater hose to the cylinder head, and attach the hose clamp. Fasten the retaining bolts for the heater hose with a socket wrench. Connect the exhaust manifolds to the engine block, and mount the timing chain to the crankshaft sprocket and camshaft sprocket. Connect the intake manifold, and replace the valve covers.

7

Attach the cable for the negative battery terminal with a socket wrench. Start the engine and check for coolant leaks. Recharge the air conditioning system, if your vehicle is so equipped. This requires a mechanic certified by the EPA.

Posted by Unknown at 12:15 PM

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Labels: 4, 6, 98, a, f150, ford, gasket, head, how, install, to