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How to Change a Head Gasket on a Dodge Shadow 2 5 Liter Engine

The Dodge Shadow was a compact car that Chrysler produced from 1987 to 1994. It had a variety of engine options, including a four-cylinder 2.5-liter Premier engine. This engine uses a single cylinder head, and you must replace the gasket each time you remove the cylinder head. The procedure for changing the cylinder head gasket is generally the same for all versions of the Dodge Shadow with a 2.5-liter Premier engine.

Instructions

1

Open the fuel filler cap to relieve the pressure in the fuel tank. Disconnect the wiring harness for the fuel injectors from the throttle body. Attach a jumper wire from the first terminal of the harness to a ground point on the engine.

2

Attach one end of another jumper wire to the second terminal of the harness. Touch the other end of the jumper wire to the positive terminal of the battery positive post for five seconds to relieve the pressure in the fuel system. Disconnect the jumper wires, and disconnect the cable from the negative battery terminal with a socket wrench.

3

Remove the radiator cap, and start the engine. Turn the heater on, and allow the engine to idle until the upper radiator hose gets hot. Stop the engine, and place a container under the radiator drain cock on the bottom of the radiator. Open the drain cock with a socket wrench, and drain the coolant into the container. Fasten the drain cock.

4

Detach the accessory drive belt from its pulleys. Disconnect the mounting bolts for the air compressor with a socket wrench, and push the compressor aside to obtain access to the cylinder heads. Secure the compressor in place with cord.

5

Disconnect the upper radiator hose and heater hoses from the engine. Remove the cover for the rocker arms, and disconnect the mounting bolts for the rocker arm with a socket wrench. Pull the rocker arms and push rods from the engine block. Disconnect the intake manifold and exhaust manifold from the engine block.

6

Remove the mounting bolts for the cylinder head with a socket wrench. Lift the cylinder head from the engine block, and remove the cylinder head gasket. Remove any traces of the old gasket from the cylinder head and engine block with a gasket scraper.

7

Cut the heads off two of the cylinder head mounting bolts, and cut slots in one end of each bolt to serve as alignment dowels. Install the alignment dowels into the number 8 and number 10 mounting bolt holes. Place the new gasket for the cylinder head onto the alignment dowels with the numbers on the gasket facing up.

8

Place the cylinder head on the engine block and install the mounting bolts. Tighten the head bolts to 22 foot-pounds with a torque wrench on the first pass, then tighten them to 45 foot-pounds on the second pass. Tighten bolts 1 through 6 to 110 foot-pounds, tighten bolt 7 to 100 foot-pounds and tighten bolts 8 through 10 to 110 foot-pounds.

9

Install the rocker arms and push rods to their original position on the engine block. Install a new gasket for the rocker arm cover, and replace the cover. Attach the hoses to the engine, and fasten the mounting bolts for the air compressor. Tighten the mounting bolts to 20 foot-pounds with a torque wrench.

10

Mount the accessory drive belt to its pulleys, and adjust the tension on the belt. Attach the cable for the negative terminal with a socket wrench, and fill the radiator with coolant. Start the engine and check for fluid leaks.

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