Installation Procedure

WARNING: This page is about a different car, the 2007 Isuzu i-370, 2007 GMC Canyon, and 2007 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.

Ensure the camshaft actuator is fully advanced prior to installation.

Fig 1: Aligning Exhaust Camshaft Position Actuator

Courtesy of GENERAL MOTORS CORP.

Install the exhaust camshaft actuator into the timing chain.
Aligning the marked link (1) on the timing chain with the timing mark (1) on the exhaust camshaft position actuator sprocket.

NOTE: The camshaft actuator must be fully advanced during installation. Engine damage may occur if the camshaft actuator is not fully advanced.

IMPORTANT:

To aid in aligning the actuator to the camshaft, use a 25 mm (1 in) wrench on the hex of the camshaft to rotate.
Ensure the alignment pin is properly engaged with the camshaft.
Ensure the camshaft actuator is rotated clockwise relative to the camshaft prior to tightening the bolt. Do not force the camshaft actuator to rotate clockwise. If it does not move easily, it is already fully advanced. New camshaft actuators are already packaged in the fully advanced (clockwise) position.

Install the exhaust camshaft actuator onto the exhaust camshaft.

Fig 2: View Of CMP Actuator

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NOTE: Refer to Fastener Notice .

Install the new exhaust camshaft actuator bolt.
Tighten: Tighten the bolt to 25 N.m (18 lb ft) plus an additional 135 degrees using the J 45059 .

Fig 3: Installing 44217 & EN-44217-45 To Timing Chains

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Remove the J 44217 (1) and J-44217-45 (1).

Fig 4: View Of J 44221 Installed On Camshafts

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Remove the J 44221 from the camshafts.
Install the intake CMP sensor. Refer to Camshaft Position Sensor Replacement - Intake .
Install the exhaust CMP sensor. Refer to Camshaft Position Sensor Replacement - Exhaust .
Install the camshaft cover. Refer to Camshaft Cover Replacement .