Chevrolet Sonic Repair Manual: Timing Belt Tensioner Replacement
Special Tools
- EN-6333 Timing Belt Tensioner Locking Pin
- EN-6340 Camshaft Locking Tool
- EN-45059 Torque Angle Sensor Kit
For equivalent regional tools, refer to Special Tools.
- Removal Procedure
-
- Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement.
- Remove the drive belt tensioner. Refer to Drive Belt Tensioner Replacement.
- Remove the timing belt upper front cover. Refer to Timing Belt Upper
Front Cover Removal.
- Set crankshaft balancer in direction of engine rotation to cylinder 1 TDC
of combustion stroke (1).
- Prepare the right half of the EN-6340 locking tool.
- Remove the 2 bolts (2).
- Remove the front panel (1).
- Install the EN-6340 locking tool into the camshaft adjusters.
Note:
The spot type marking (4) on the intake camshaft adjuster
does not correspond to the groove of EN-6340-left during this process
but must be somewhat above as shown.
- Install the EN-6340-left locking tool (1) in the camshaft adjusters
as shown.
Note:
The spot type marking (3) on the exhaust camshaft adjuster
must correspond to the groove on EN-6340-right.
- Install EN-6340-right locking tool (2) in the camshaft adjusters
as shown.
- Remove EN-6340 locking tool.
- Remove the crankshaft balancer. Refer to Crankshaft Balancer Replacement.
- Remove the engine mount bracket. Refer to Engine Mount Bracket Replacement.
- Remove the timing belt center front cover. Refer to Timing Belt Center
Front Cover Removal.
- Remove the timing belt lower front cover. Refer to Timing Belt Lower
Front Cover Removal.
- Loosen the timing belt tensioner bolt.
- Apply tension to the drive belt tensioner (2) in the direction of the
arrow, using an allen key (1).
- Install the EN-6333 locking pin (3).
- Remove the timing belt tensioner bolt (1) and the timing belt tensioner (2).
- Discard the timing belt tensioner bolt (1).
- Installation Procedure
-
- Clean the timing belt tensioner thread.
- Install the timing belt tensioner (2).
- Install a new timing belt tensioner bolt (1).
- Apply tension to the drive belt tensioner (2) in the direction of the
arrow, using an allen key (1).
- Remove the EN-6333 locking pin (3).
Note:
The timing belt tensioner moves automatically to the
correct position.
- Release tension on timing belt tensioner.
Caution:
Refer to Fastener Caution.
- Tighten the timing belt tensioner bolt in three passes using the
EN-45059 torque angle:
- First pass tighten to 20 Y (15 lb ft)
.
- Second pass to 120 degrees
.
- Third pass to 15 degrees
.
- Install the timing belt lower front cover. Refer to Timing Belt Lower
Front Cover Installation.
- Install the timing belt center front cover. Refer to Timing Belt Center
Front Cover Installation.
- Install the engine mount bracket. Refer to Engine Mount Bracket Replacement.
- Install the crankshaft balancer. Refer to Crankshaft Balancer Replacement.
- Check the timing.
Note:
Note the marking at the camshaft sprockets.
- Turn the crankshaft 720 degrees in the direction of engine rotation
by the bolt on the crankshaft balancer.
Note:
The spot type marking (4) on the intake camshaft
adjuster does not correspond to the groove of EN-6340-left during
this process but must be somewhat above as shown.
- Install EN-6340-left locking tool (1) into the camshaft adjusters
as shown.
Note:
The spot type marking (3) on the exhaust camshaft
adjuster must correspond to the groove on EN-6340-right.
- Install EN-6340-right locking tool (2) into the camshaft
adjusters as shown.
Note:
Note the marking at the crankshaft balancer and the
cover (1) must align before installing the drive belt.
- Install the drive belt tensioner. Refer to Drive Belt Tensioner Replacement.
- Remove the EN-6340 locking tool.
- Install the timing belt upper front cover. Refer to Timing Belt Upper
Front Cover Installation.
- Install the air cleaner assembly. Refer to Air Cleaner Assembly Replacement.
Remove the tensioner bolt (1).
Remove the timing belt tensioner (2).
...
Install the timing chain tensioner (2).
Caution: Refer to Fastener Caution.
Install the 2 timing chain tensioner bolts (1) and tighten to 8 Y (71 ...
В© 2014-2024 Copyright www.csmans.com
![](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAEALAAAAAABAAEAAAIBTAA7)
0.0049