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:
Liftgate (Hatchback)
Warning
Exhaust gases can enter the vehicle if it is driven with the liftgate, hatch/trunk
open, or with any objects that pass through the seal between the body and the hatch/trunk
or liftgate. Engine exhaust contains carbon monoxide (CO) which cannot be seen or
smelled. It can cause unconsci ...
Mobile Telephone Microphone Replacement
Mobile Telephone Microphone Replacement
Callout
Component Name
Preliminary Procedure
Remove the dome lamp bezel. Refer to Dome Lamp
Bezel Replacement.
1
Mobile Telephone Microphone
Procedure ...
Throttle Body Inspection and Cleaning
Note: Over extended time and mileage, deposits may accumulate on the
back of the throttle valve plate. The source of the deposit is exhaust gas.
Typically these deposits pose no problem. Occasionally the deposit may accumulate
to a point where perceived pedal effort or throttle valve mov ...
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