Answer

Document ID# 205167 1998 Chevrolet Lumina

Click on the enlarge picture for your cylinder head bolt pattern. Good luck and let me know if you need any more info ok.

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Cylinder Head Replacement (Left Front)

Removal Procedure

1. Perform an engine compression and leak down test. Refer to Engine Compression Test and Cylinder Leakage Test
2. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle
3. Drain the engine coolant from the cooling system. Refer to Draining and Filling Cooling System
4. Drain the engine oil. Refer to Engine Oil and Oil Filter Replacement
5. Lower the vehicle.
6. Remove the upper intake manifold. Refer to Intake Manifold Replacement
7. Remove the valve rocker arm covers.
8. Remove the lower intake manifold. Refer to Intake Manifold Replacement
9. Remove the valve rocker arms and pushrods. Refer to Valve Rocker Arm and Push Rod Replacement
10. Remove the exhaust crossover pipe. Refer to Exhaust Crossover Replacement
11. Remove the right engine mount strut bracket. Refer to Engine Mount Strut Bracket Replacement
12. Remove the oil level indicator tube. Refer to Oil Level Indicator and Tube Replacement
13. Remove the left (front) spark plug wires from the spark plugs. Refer to Spark Plug Wire Harness Replacement
14. Remove the left (front) spark plugs. Refer to Spark Plug Replacement
15. Remove the left (front) exhaust manifold. Refer to Exhaust Manifold Replacement
    

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16. Remove the left (front) cylinder head bolts.
17. Remove the left (front) cylinder head.
    

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18. Remove the left (front) cylinder head gasket.
19. Clean the following areas:

    -	The gasket sealing surfaces on the cylinder head, cylinder block, and intake manifolds.

    -	The cylinder block bolt threads.

    -	The cylinder head bolts.

Installation Procedure

Tools Required

J 36660-A Torque Angle Meter

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1. Install a new left (front) cylinder head gasket.
   

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2. Install the left (front) cylinder head over the locator pins and over the gasket.
   

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   Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

3. Tighten the left (front) cylinder head bolts (1-8) in sequence.
   

   Tighten

   •	Tighten the cylinder head bolts (1-8) in sequence to 50 N·m (37 lb ft).

   •	Use the J 36660-A

4. Install the left (front) exhaust manifold. Refer to Exhaust Manifold Replacement
5. Install the left (front) spark plugs. Refer to Spark Plug Replacement
6. Install the left (front) spark plug wires to the spark plugs. Refer to Spark Plug Wire Harness Replacement
7. Install the oil level indicator tube. Refer to Oil Level Indicator and Tube Replacement
8. Install the right engine mount strut bracket. Refer to Engine Mount Strut Bracket Replacement
9. Install the exhaust crossover pipe. Refer to Exhaust Crossover Replacement
10. Install the valve rocker arms and pushrods. Refer to Valve Rocker Arm and Push Rod Replacement
11. Install the lower intake manifold. Refer to Intake Manifold Replacement
12. Install the valve rocker arm covers.
13. Install the upper intake manifold. Refer to Intake Manifold Replacement
14. Fill the engine with new engine oil. Refer to Engine Oil and Oil Filter Replacement
15. Fill the cooling system with engine coolant. Refer to Draining and Filling Cooling System

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Document ID# 205167 1998 Chevrolet Lumina

Edited by Dan on 6/18/2007 at 2:38 PM

Expert:	Dan
Pos. Feedback:	99.0 %
Accepts:
Answered:	6/18/2007

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