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:
Engine Exhaust
Warning
Engine exhaust contains carbon monoxide (CO) which cannot be seen or smelled.
Exposure to CO can cause unconsciousness and even death.
Exhaust may enter the vehicle if:
. The vehicle idles in areas with poor ventilation (parking garages,
tunnels, deep snow that may block underbody ...
Antilock Brake System (ABS)
This vehicle has ABS, an advanced electronic braking system that helps prevent
a braking skid.
When the vehicle begins to drive away, ABS checks itself.
A momentary motor or clicking noise might be heard while this test is going on,
and it might even be noticed that the brake pedal moves a lit ...
Sunroof Description and Operation (Tilt and Slide)
The Tilt/Slide sunroof consists of a moving glass panel and a manual sunshade.
In the Tilt/Slide sunroof system the rear of the glass tilts up above the roof line
for venting, and slides between the headliner and the roof panel to open fully.
The sunshade is operated by manually pushing or pu ...
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