Chevrolet Sonic Repair Manual: Replacing Engine Gaskets
- Gasket Reuse and Applying Sealants
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- 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 gasket or sealing surface unless called out in the service information.
- Separating Components
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- Use a rubber mallet to separate components.
- Bump the part sideways to loosen the components.
- Bumping should be done at bends or reinforced areas to prevent distortion of parts.
- Cleaning Gasket Surfaces
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- Remove all gasket and sealing material from the part using a scraping tool.
- Care must be used to avoid gouging or scraping the sealing surfaces.
- Do not use any other method or technique to remove sealant or gasket material from a part.
- Do not use abrasive pads, sand paper, or power tools to clean the gasket surfaces.
- These methods of cleaning can cause damage to the component sealing surfaces.
- Abrasive pads also produce a fine grit that the oil filter cannot remove from the oil.
- This grit is abrasive and has been known to cause internal engine damage.
- Assembling Components
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- When assembling components, use only the sealant specified or equivalent in the service procedure.
- Sealing surfaces should be clean and free of debris or oil.
- Specific components such as crankshaft oil seals or valve stem oil seals may require lubrication during assembly.
- Components requiring lubrication will be identified in the service procedure.
- When applying sealant to a component, apply the amount specified in the service procedure.
- Do not allow the sealant to enter into any blind threaded holes, as it may prevent the bolt from clamping properly or cause component damage when tightened.
- Tighten bolts to specifications. Do not overtighten.
Park - Engine Running (Gen 2)
When the gear selector lever is in the Park (P) position, fluid is drawn into
the pump through the transmission fluid filter assembly. Line pressure is then directed
to the following valves:
...
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 connectin ...
Other materials:
Crankcase Ventilation System Inspection/Diagnosis
Results of Incorrect Operation
A plugged positive crankcase ventilation (PCV) orifice or hose may cause
the following conditions:
Rough idle
Stalling or slow idle speed
Oil leaks
Oil in the throttle body
Sludge in the engine
Functional Check
With thes ...
Engine Front Cover and Oil Pump Assemble
Oil Pump Installation
Note: The oil pump slide spring and pin, as well as the slide
seal and slide seal spring can be ordered as single parts. All other
oil pump components can only be ordered as a replacement kit.
Install the oil pump components in the fo ...
Timing Belt Inspection
Special Tools
EN-6340 Locking Tool
EN-6628-A Locking Tool
For equivalent regional tools, refer to Special Tools.
Removal Procedure
Remove the timing belt upper front cover. Refer to Timing Belt Upper
Front Cover Removal.
Set the crankshaft balancer in the ...
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