Timing Chain: Removal

NOTE: During engine repair procedures, cleanliness is extremely important. Any foreign material, including any material created while cleaning gasket surfaces, that enters the oil passages, coolant passages or the oil pan can cause engine failure.

NOTE: If it is necessary to install a new timing chain tensioner, a cast iron tensioner is to be replaced with an aluminum tensioner (6K254). The existing bolts must be discarded and replaced with new bolts (6K282).

With the vehicle in NEUTRAL, position it on a hoist. Refer to: Jacking and Lifting - Overview .
Remove the timing cover. Refer to: Timing Cover .
NOTE: If equipped with cast iron timing chain tensioner.
1. Using a small pick, release and hold the ratchet mechanism.
2. While holding the ratchet mechanism in the released position, compress the tensioner by pushing the timing chain arm toward the tensioner.
3. Insert a holding pin into the hole to retain the tensioner.
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NOTE: If it is necessary to install a new timing chain tensioner, a cast iron tensioner is to be replaced with an aluminum tensioner (6K254). The existing bolts must be discarded and replaced with new bolts (6K282).

NOTE: If equipped with cast iron timing chain tensioner.

Remove the bolts and the timing chain tensioner.

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NOTE: If equipped with aluminum timing chain tensioner.

Remove the bolts and the timing chain tensioner.

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

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Remove the timing chain.

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NOTE: The Camshaft Alignment Plate is for camshaft alignment only. Using this tool to prevent engine rotation can result in engine damage.

NOTE: Use the flats on the camshafts to prevent camshaft rotation.

Using the flats on the camshaft to prevent camshaft rotation, loosen the bolts 2 revolutions on the camshaft phaser and sprocket.

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