Chevrolet Sonic Repair Manual: Separating Parts
Note:
- Disassembly of the piston, press fit design piston pin, and connecting rod may create scoring or damage to the piston pin and piston pin bore. If the piston, pin, and connecting rod have been disassembled, replace the components as an assembly.
- Many internal engine components will develop specific wear patterns on their friction surfaces.
- When disassembling the engine, internal components MUST be separated, marked, or organized in a way to ensure installation to their original location and position.
Separate, mark, or organize the following components:
- Piston and the piston pin
- Piston to the specific cylinder bore
- Piston rings to the piston
- Connecting rod to the crankshaft journal
- Connecting rod to the bearing cap—A paint stick or etching/engraving type tool are recommended. Stamping the connecting rod or cap near the bearing bore may affect component geometry.
- Crankshaft main and connecting rod bearings
- Camshaft and valve tappets
- Valve to the valve guide
- Valve spring and shim to the cylinder head location
- Engine block main bearing cap location and direction
- Oil pump drive and driven gears
Replacing Engine Gaskets
Gasket Reuse and Applying Sealants
Do not reuse any gasket unless specified.
Gaskets that can be reused will be identified in the service procedure.
Do not apply sealant to any ...
Service Prior to Assembly
The importance of cleanliness during assembly cannot be overstated. Dirt or debris
will cause engine damage. An automobile engine is a combination of many machined,
honed, polished and lapped surf ...
Other materials:
Fog Lamps
For vehicles with front fog lamps, the button is on the outboard side of the
instrument panel.
The ignition must be on to turn on the fog lamps.
(Fog Lamps): Press to turn the
fog lamps on or off. An indicator light on the instrument cluster comes on when
the fog lamps are on.
The fog la ...
Paint Gauges
Paint thickness gauges measure the total thickness of the vehicle finish. It
is important to accurately measure the thickness of the finish on each vehicle as
the thickness of the finish will vary on each vehicle. Use a paint gauge before
the sanding process in order to accurately measure how ...
Timing Belt Idler Pulley Installation
Special Tools
EN-45059 Angle Meter
For equivalent regional tools, refer to Special Tools.
Caution: Refer to Fastener Caution.
Caution: Refer to Torque-to-Yield Fastener Caution.
Re-cut the timing belt idler pulley thread.
Install the timing belt idler pulley̴ ...
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