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: In order to remove the LH timing chain, the RH timing chain must be removed first.

RH and LH timing chains

Remove the following items:
1. Engine front cover. Refer to: Engine Front Cover
2. Spark plugs. Refer to: Spark Plugs
Using the special tool, rotate the crankshaft clockwise until the keyway is at the 12 o'clock position. Use Special Service Tool: 303-448 (T93P-6303-A) Holding Tool, Crankshaft.

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Verify the timing mark on the RHVCT unit is on top, if not, rotate the crankshaft clockwise one complete revolution so the keyway is at the 12 o'clock position.

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Remove the bolts and the RH primary timing chain tensioner.

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NOTE: It may be necessary to rotate the crankshaft slightly to provide enough slack in the chain to remove the RH timing chain tensioner arm. Return the crankshaft keyway to the 12 o'clock position after removing the RH timing chain tensioner arm.

Remove the RH timing chain tensioner arm.

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NOTE: It may be necessary to rotate the crankshaft slightly to provide enough slack in the chain to remove the RH timing chain guide. Return the crankshaft keyway to the 12 o'clock position after removing the RH timing chain guide.

Remove the bolt and the RH timing chain guide.

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Remove the RH timing chain.

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LH timing chain
Using the special tool, rotate the crankshaft clockwise until the keyway is at the 5 o'clock position. Use Special Service Tool: 303-448 (T93P-6303-A) Holding Tool, Crankshaft.

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Remove the bolts and the LH primary timing chain tensioner.

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NOTE: It may be necessary to rotate the crankshaft slightly to provide enough slack in the chain to remove the LH timing chain tensioner arm. Return the crankshaft keyway to the 5 o'clock position after removing the LH timing chain tensioner arm.

Remove the LH timing chain tensioner arm.

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NOTE: It may be necessary to rotate the crankshaft slightly to provide enough slack in the chain to remove the LH timing chain guide. Return the crankshaft keyway to the 5 o'clock position after removing the LH timing chain guide.

Remove the bolt and the LH timing chain guide.

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Remove the LH timing chain.

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