Timing Chain: Installation

- Install the timing chain guide and the bolts.
  Torque: 89 lb.in (10 Nm)
- Install the timing chain.
- Install the timing chain tensioner arm.
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NOTE: If equipped with aluminum timing chain tensioner.

NOTE: If the timing chain tensioner plunger is not pinned in the compressed position, follow the next step.
Reset the timing chain tensioner.
1. Position the timing chain tensioner in a soft-jawed vise.
2. Spread the ends of the ratchet wire clip apart.
3. Using the soft-jawed vise, compress the plunger to the reset position.
4. Install a locking pin in the 2 holes of the timing chain tensioner body to hold the plunger in place.
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NOTE: If equipped with aluminum timing chain tensioner.

NOTE: Do not remove the locking pin until the tensioner bolts are tightened.
1. Install the timing chain tensioner and the bolts.
  Torque: 89 lb.in (10 Nm)
2. Remove the locking pin.
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NOTE: If equipped with cast iron timing chain tensioner.

NOTE: If the timing chain tensioner plunger and ratchet assembly are not pinned in the compressed position, follow the next 4 steps.
NOTE: Do not compress the ratchet assembly. This will damage the ratchet assembly.

Using the edge of a vise, compress the timing chain tensioner plunger.

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Using a small pick, push back and hold the ratchet mechanism.

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While holding the ratchet mechanism, push the ratchet arm back into the tensioner housing.

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Install a locking pin into the hole in the tensioner housing to hold the ratchet assembly and the plunger in during installation.

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NOTE: If equipped with cast iron timing chain tensioner.

NOTE: Do not remove the locking pin until the tensioner bolts are tightened.

Install the timing chain tensioner and the bolts.

Torque: 89 lb.in (10 Nm)

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NOTE: If equipped with cast iron timing chain tensioner.

Remove the locking pin.

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NOTE: Use an open-ended wrench to prevent the component from turning.

Tighten the exhaust VCT unit bolt.

Torque: Stage 1: 30 lb.ft (40 Nm)

Stage 2: 60°

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NOTE: Use an open-ended wrench to prevent the component from turning.

Tighten the intake VCT unit bolt.

Torque: Stage 1: 30 lb.ft (40 Nm)

Stage 2: 60°

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Remove Special Service Tool: 303-1565 Alignment Tool, Camshaft.

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

Rotate the special tool so the tool number faces down and install into the rear of the intake camshaft slot as shown in illustration.

Install Special Service Tool: 303-1565 Alignment Tool, Camshaft.

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Install the following items:
1. Install the engine front cover. Refer to: Engine Front Cover .
2. Install the high-pressure fuel pump drive unit. Refer to: High-Pressure Fuel Pump Drive Unit .