Chevrolet Sonic Repair Manual: Camshaft Timing Chain Inspection
Special Tools
- EN-952 Fixing Pin
- EN-953-A Fixing Tool
- EN-49977-100 Transmitter Disc Fixation
For equivalent regional tools, refer to Special Tools.
- Remove the ignition coil. Refer to Ignition Coil Replacement.
- Remove the camshaft cover. Refer to Camshaft Cover Replacement.
- Remove the right front wheelhouse liner. Refer to Front Wheelhouse Liner
Replacement
- Rotate the engine clockwise until the bore (2) in the crankshaft balancer
aligns with the mark (1) on the engine front cover.
- Examine that the camshaft grooves (1) are visible as shown. If the camshaft
grooves are not visible rotate the crankshaft 360°.
- Remove the crankshaft bearing cap tie plate hole plug (2) and the seal ring (1).
Caution:
To ensure proper crankshaft top dead center (TDC) alignment,
the retention pin should fit easily through the bore in the crankshaft tie
plate and into the crankshaft. Binding of the retention pin could affect
proper engine timing.
- Install EN-952 fixing pin (1) to hold the crankshaft in TDC position.
Note:
The fixing tool should be installed completely to both camshaft
grooves without high effort.
- Install EN-953-A fixing tool (1) to the camshafts.
Note:
A wrong installation position is possible. Make sure that
the fixation tool is installed without clearance to the cylinder head in
areas (3) and (4).
- Install EN-49977-100 transmitter disc fixation (1) to inspect the
correct position of the camshaft position exciter wheels.
- Tighten the bolts (2) of EN-49977-100 transmitter disc fixation .
- If EN-953-A fixing tool or EN-49977-100 transmitter disc fixation
can not be installed, refer to Camshaft Timing Chain Adjustment.
- Remove EN-49977-100 transmitter disc fixation .
- Remove EN-953-A fixing tool .
- Remove EN-952 fixing pin .
Caution:
Refer to Fastener Caution.
- Install crankshaft bearing cap tie plate hole plug and seal ring and tighten
to 40 Y (30 lb ft)
.
- Install the right front wheelhouse liner. Refer to Front Wheelhouse Liner
Replacement
- Install the camshaft cover. Refer to Camshaft Cover Installation.
- Install the ignition coil. Refer to Ignition Coil Installation.
Special Tools
EN-952 Fixing Pin
EN-953–A Fixing Tool
EN-49977?E00 Fixation Sensor Discs
For equivalent regional tools, refer to Special Tools.
Remove the ignition coil. Refer to Ign ...
Special Tools
EN-952 Fixing Pin
EN-953-A Fixing Tool
EN-955-10 Fixing Pin from EN-955 Kit
For equivalent regional tools, refer to Special Tools.
The engine should be adjusted to TDC.
...
Other materials:
Conversions and Add-Ons
Add-On Electrical Equipment
Caution
Some electrical equipment can damage the vehicle or cause components to not
work and would not be covered by the warranty. Always check with your dealer before
adding electrical equipment.
Add-on equipment can drain the vehicle's 12-volt battery, even i ...
Instrument Panel Center Trim Panel Replacement
Instrument Panel Center Trim Panel Replacement
Callout
Component Name
1
Instrument Panel Center Trim Panel (Qty:?€‰2)
Procedure
Use a flat bladed plastic trim tool in order to disengage the retainers
secur ...
Tire Rotation
In order to equalize wear, rotate the tires at the specified intervals. Also,
rotate the tire and wheel assembly whenever you notice uneven tire wear.
Radial tires tend to wear faster in the shoulder area, particularly in front
positions, due to design. Radial tires in non-drive locations may ...
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