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1995 Chevy Suburban Head Installation

The 1995 Chevrolet Suburban is available with a V-8 engine, which has a cylinder head on each side. The cylinder head forms part of the combustion chamber, and contains the poppet valves and spark plugs. A cracked cylinder head can contaminate the Suburbans oil supply with coolant, giving the oil a milky appearance. The components you need to remove to install a cylinder head on a 1995 Chevrolet Suburban are different for each head. The replacement of both cylinder heads requires up to nine hours of labor.

Instructions

1

Remove the cable from the negative battery terminal with a socket wrench. Drain the coolant from the radiator into a container, and store it for later use. Disconnect the intake manifold and exhaust manifolds from the vehicle.

2

Disconnect the attaching bolt from the air pipe on the right cylinder head with a socket wrench, and detach the pipe. Remove the mounting bolts from the air compressor on the right cylinder head, and push the compressor aside. Remove the fuel line and spark plug wire from the right cylinder head. Detach the ground wire from the right side cylinder head.

3

Disconnect the mounting bolt from the main accessory bracket, and detach the bracket from the left cylinder head. Push the bracket aside to obtain access to the left cylinder head. Detach the coolant sensor wire and spark plug wires from the rear of the left cylinder head.

4

Disconnect the covers for the cylinder heads with a socket wrench, and unscrew the spark plugs from the cylinder heads. Loosen the retaining nuts for the rocker arms, and rotate the rocker arms to obtain access to the push rods. Record the position of the push rods, and remove the push rods from the cylinder heads.

5

Remove the mounting bolts from the cylinder heads with a socket wrench, and lift the heads from the engine block. Remove the gasket from the engine block, and clean any remaining traces of gasket material from the engine block with a gasket scraper. Mount a new gasket to the engine block so that the word HEAD on the gasket faces up. Place the new cylinder head on the engine block.

6

Clean the mounting bolts for the cylinder heads with a shop cloth, and fasten them to the cylinder head by hand. Tighten the cylinder head bolts with a torque wrench in three passes. The first pass must tighten them to 25 foot-pounds, the second pass must tighten them to 45 foot-pounds and the third pass must tighten them to 65 foot-pounds.

7

Place the push rods in their original positions on the cylinder head that you recorded in step four. Move the rocker arms back into position and tighten their mounting bolts with a socket wrench. Replace the covers for the cylinder heads, and install the spark plugs.

8

Replace the components you removed in step three if you removed the left cylinder head. Replace the components you removed in step two if you removed the right cylinder head. Refill the radiator with coolant, and attach the cable to the negative battery terminal with a socket wrench.

Posted by Unknown at 3:00 AM

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Labels: 1995, chevy, head, installation, suburban