Chevrolet Sonic Repair Manual: Engine Front Cover and Oil Pump Cleaning and Inspection
- Engine Front Cover Cleaning Procedure
-
- Clean the engine front cover sealing surface.
Warning:
Wear safety glasses when using compressed air in
order to prevent eye injury.
Caution:
To ensure proper engine lubrication, clean clogged
or contaminated oil galleries in an approved solvent and with compressed
air. Failure to clean oil galleries may cause engine damage.
- Clean the shown oil gallery with solvent and compressed air. Blow compressed
air from bore (2) to bore (1).
- Engine Front Cover Visual Inspection
-
Inspect the engine front cover for cracks, scratches and damage.
- Oil Pump Visual Inspection and Measurement
-
- Inspect the oil pump cover and the engine front cover for flatness.
- Inspect the oil pump vanes, the oil pump vane rotor, the oil pump vane
rings and the oil pump slide for localized flatting.
- Inspect the oil pump slide pivot pin for firm seat.
Note:
Oil pump components are installed.
- Measure the oil pump axial clearances. Use a straight edge (1) and a
feeler gauge.
- The maximal axial clearance between engine front cover and oil pump
vane rotor should be 0.1 mm (0.004 in).
- The maximal axial clearance between engine front cover and oil pump
vane should be 0.09 mm (0.0035 in).
- The maximal axial clearance between engine front cover and oil pump
vane ring should be 0.4 mm (0.016 in).
- The maximal axial clearance between engine front cover and oil pump
slide should be 0.08 mm (0.0031 in).
- The maximal axial clearance between engine front cover and oil pump
slide seal should be 0.09 mm (0.0035 in).
- Measure the oil pump radial clearance. Use a feeler gauge (1). Measure
the clearance between oil pump vane rotor and oil pump vane (3).
The maximal clearance should be 0.05 mm (0.002 in).
- Measure the clearance between oil pump vane and oil pump slide (2).
The maximal clearance should be 0.2 mm (0.008 in).
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 co ...
Engine Front Cover Disassemble
Remove the intake camshaft position sensor bolt (1).
Remove the intake camshaft position sensor (2) and the seal ring (3).
...
Other materials:
Radio Front Side Door Speaker Replacement
Radio Front Side Door Speaker Replacement
Callout
Component Name
Preliminary Procedure
Remove the front side door trim. Refer to Front Side Door Trim Replacement.
1
Radio Front Side Door Speaker ...
Special Tools
Illustration
Tool Number/ Description
BO-125
KM-125
Torque Rod Lifter
...
Side Window Defogger Outlet Grille Replacement
Side Window Defogger Outlet Grille Replacement
Callout
Component Name
1
Side Window Defroster Outlet Grille (Qty:?€‰2)
Procedure
Use a flat bladed plastic trim tool to aid in the removal of the grille
ass ...
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