Removal Procedure

Special Tools

• EN-38188  Cylinder Head Broken Bolt Extractor Kit - or equivalent aftermarket tool
• EN-45059  Angle Meter
• EN-36857  Engine Lift Bracket

Equivalent regional tools: Special Tools 

1. Cooling System Draining and Filling (Static)Cooling System Draining and Filling (GE 47716) - Drain
2. Camshaft Cover Replacement  - Remove
3. Fuel Pump Replacement - Remove
4. Intake Manifold Replacement  - Remove
5. Exhaust Manifold Replacement (LTG) - Remove
6. Engine Front Cover Replacement  - Remove
7. Camshaft Position Actuator and Camshaft Replacement - Intake  - Remove
8. Camshaft Position Actuator and Camshaft Replacement - Exhaust  - Remove
9. Install the EN-36857  Engine Lift Bracket (2) and fastener (1) into the engine block.
   Fig 1: Engine Lift Bracket

   Courtesy of GENERAL MOTORS COMPANY
10. Reposition the engine support fixture lift hook from the engine lift bracket (3) to the EN-36857  Engine Lift Bracket (2)
    NOTE: Support the engine as necessary from underneath while repositioning the engine support fixture.
11. Cylinder Head Bolt - Remove and DISCARD
    Fig 2: Cylinder Head Bolt Tightening Sequence

    Courtesy of GENERAL MOTORS COMPANY
12. Cylinder Head Bolt (1) - Remove and DISCARD [10x]
    Fig 3: Cylinder Head Bolts

    Courtesy of GENERAL MOTORS COMPANY
    CAUTION: In order to prevent damage to the valves and injectors during cylinder head removal, set the cylinder head on blocks.
13. Cylinder Head (2) - Remove
14. Cylinder Head Gasket (3) - Remove and DISCARD
15. Replace or transfer locating pins as necessary.
16. Use the following procedures when cleaning the cylinder head and cylinder block surfaces:
    • Be careful not to gouge or scratch the gasket surfaces. Do not gouge or scrape the combustion chamber surfaces. The feel of the gasket surface is important, not the appearance. There will be indentations from the gasket left in the cylinder head after all of the gasket material is removed. These small indentations will be filled in by the new gasket.
    • Use a gasket scraper to clean the cylinder head and cylinder block gasket surfaces. Do not scratch or gouge any surface.
    • Do not use any other method or technique to clean these gasket surfaces.
17. Clean the old sealer/lube and dirt from the bolt holes.
    NOTE: Do not use a tap to clean the cylinder head bolt holes.
18. Clean the bolt holes with a nylon bristle brush.
19. When cleaning the cylinder head bolt holes use a suitable commercial spray liquid solvent and compressed air from an extended-tip blow gun to reach the bottom of the holes.
    WARNING: Wear safety glasses to avoid injury when using compressed air or any cleaning solvent. Bodily injury may occur if fumes are inhaled or if skin is exposed to chemicals.
20. Remove any broken long cylinder head bolts using the EN 38188  kit.
21. If replacing the cylinder head, transfer all parts as necessary. Refer to Cylinder Head Disassemble 
22. Cylinder Head - Clean and inspect Cylinder Head Cleaning and Inspection