Timing Belt Installation (1.6L LDE, LXV, 1.8L 2H0, and LUW)

Special Tools

• EN-6333:  Locking Pin
• EN-6340:  Locking Tool

For equivalent regional tools, refer to Special Tools .

Fig 1: Aligning Timing Belt Drive Gear And Oil Pump Housing
Courtesy of GENERAL MOTORS CORP.
NOTE: The timing belt drive gear and oil pump housing must align.
1. Turn the crankshaft in the direction of engine rotation, by the crankshaft balancer bolt, to cylinder 1 TDC of combustion stroke.
Fig 2: Front Panel And Bolts
Courtesy of GENERAL MOTORS CORP.
NOTE: The right half of the EN-6340:  locking tool can be recognized by the lettering right, arrow, on the tool.
2. Prepare the right half of the EN-6340:  locking tool.
   1. Remove the 2 bolts (2).
   2. Detach the front panel (1) from the EN-6340:  locking tool - right.
Fig 3: Spot Type Markings And Special Tool
Courtesy of GENERAL MOTORS CORP.
NOTE:
• The spot type marking (4) on the intake camshaft 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 adjuster must correspond to the groove on EN-6340:  locking tool - right (2).
3. Insert the EN-6340:  locking tool - left (1) and the EN-6340:  locking tool - right (2) in the camshaft adjuster.
Fig 4: Timing Belt, Timing Belt Tensioner
Courtesy of GENERAL MOTORS CORP.
NOTE: Observe direction of rotation.
4. Insert the timing belt (1).
Fig 5: Timing Belt Tension Roller, Allen Key And Special Tool
Courtesy of GENERAL MOTORS CORP.
5. Apply tension to the timing belt tensioner (2) in the direction of the arrow, using an Allen key (1).
6. Remove the EN-6333:  locking pin (3).
NOTE: The timing belt tensioner moves automatically to the correct position.
7. Release tension on timing belt tensioner.
8. Remove the EN-6340:  locking tool.
9. Check position of the camshaft sprocket.
   1. Turn crankshaft 720° in the direction of engine rotation by the crankshaft balancer bolt.
   NOTE: Note the marking on the camshaft sprocket.
   2. Insert EN-6340:  locking tool into camshaft sprockets.
Fig 6: Aligning Timing Belt Drive Gear And Oil Pump Housing
Courtesy of GENERAL MOTORS CORP.
NOTE: The timing belt drive gear and oil pump housing must align.
10. Check the crankshaft position.