Cylinder Head Disassemble
WARNING: This page is about a different car, the 2011 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
Special Tools
- J 8062 Valve Spring Compressor - Head Off
- J 38821 Valve Spring Compressor Adapter
- J 38820 Valve Stem Seal Installer
- J-43059-A Valve Retainer Remover/Installer
For equivalent regional tools, refer to Special Tools .
- Using an appropriately sized deep socket and a plastic hammer, lightly tap on the valve spring retainer in order to loosen the valve keepers.
- Compress the valve spring with the J 8062 compressor and the J 38821 adapter.
- Use the magnet end of the J-43059-A remover/installer in order to remove the valve keepers.
- Remove the J 8062 compressor and the J 38821 adapter.
- Remove the valve spring.
- Remove the valve seal with the J 38820 installer. Discard the valve seal, NEVER re-use the valve seal.
- Remove the valve.
- Repeat the procedure for the remaining valves.
- Remove the expansion coolant plugs from the left cylinder head.
- Remove the threaded coolant plugs from the left cylinder head.
- Remove the expansion coolant plugs from the right cylinder head.
- Remove the threaded coolant plugs from the right cylinder head.
- Remove the exhaust manifold studs from the right cylinder head.
WARNING:
Compressed valve springs have high tension against the valve spring compressor. Valve springs that are not properly compressed by or released from the valve spring compressor can be ejected from the valve spring compressor with intense force. Use care when compressing or releasing the valve spring with the valve spring compressor and when removing or installing the valve stem keys. Failing to use care may cause personal injury.
CAUTION:
Do not compress the valve springs to less than 24.0 mm (0.943 in). Contact between the valve spring retainer and the valve stem oil seal can cause potential valve stem oil seal damage.