Cylinder Head: Disassembly

WARNING: This page is about a different variant/trim than selected.

NOTE: If replacing the cylinder head, do not reuse the secondary timing chain tensioners, they must be replaced or damage to the engine may occur. Refer to Variable Camshaft Timing (VCT) Unit.

LH cylinder head

Remove the bolts and the exhaust manifold heat shield.

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- Remove the nuts and the exhaust manifold.
- Discard the nuts.
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Clean and inspect the exhaust manifold. Refer to: Exhaust Manifold Cleaning and Inspection .
Remove and discard the studs and the exhaust manifold gasket.

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Remove the timing chain guide pin.

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RH cylinder head
Remove the bolts and the engine lift eye.

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Remove the bolts and the exhaust manifold heat shield.

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- Remove the nuts and the exhaust manifold.
- Discard the nuts.
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Clean and inspect the exhaust manifold. Refer to: Exhaust Manifold Cleaning and Inspection .
Remove and discard the studs and the exhaust manifold gasket.

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Remove the timing chain tensioner arm and timing chain guide pins.

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Remove and discard the CHT sensor.

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All cylinder heads
Remove the spark plugs. Refer to: Spark Plugs .
NOTE: If the components are to be reinstalled, they must be installed in the same positions. Mark the components for installation into their original locations.

Using the special tools, remove the valve collet, valve spring retainer and the valve spring. Use Special Service Tool: 303-300 (T87C-6565-A) Set, Valve Spring Compressor, 303-350 (T89P-6565-A) Compressor, Valve Spring, 303-1249 Valve Spring Compressor.

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Remove the valve stem seal.

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Remove the valve.

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Repeat the previous 3 steps for each valve.