Chevrolet Sonic Repair Manual: Timing Belt Inspection

Special Tools

• EN-6340 Locking Tool
• EN-6628-A Locking Tool

For equivalent regional tools, refer to Special Tools.

Removal Procedure

1. Remove the timing belt upper front cover. Refer to Timing Belt Upper Front Cover Removal.



2. Set the crankshaft balancer in the direction of the engine rotation to "1st cylinder TDC" (mark 1).
3. Remove the camshaft cover. Refer to Camshaft Cover Removal.




Note:

The right half of the EN-6340 locking tool can be recognized by the lettering “right?E arrow, on the tool.

4. Prepare the right half of the EN-6340 locking tool .
1. Remove the 2 bolts (2).
2. Remove the front panel (1) from the EN-6340 locking tool  -right.




Note:

• The spot type marking (4) on the intake camshaft position actuator adjuster does not correspond to the groove of the EN-6340 locking tool  - left (1) during this process, but must be somewhat above.
• The spot type marking (3) on the exhaust camshaft position actuator adjuster must correspond to the groove on EN-6340 locking tool  - right (2).
5. Insert the EN-6340 locking tool  - left (1) and the EN-6340 locking tool  - right (2) in the camshaft position actuator adjuster.




Note:

If the EN-6628-A locking tool cannot be inserted, the timing must be set.

6. Align the camshafts horizontally by the hexagon (arrows) until the EN-6628-A locking tool can be inserted in both camshafts.



7. Insert the EN-6628-A locking tool  (1) into the camshafts.

Installation Procedure

1. Remove the EN-6628-A locking tool .
2. Remove the EN-6340 locking tool .
3. Install the camshaft cover. Refer to Camshaft Cover Installation.
4. Install the timing belt upper front cover. Refer to Timing Belt Upper Front Cover Installation.

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