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:
Front Side Door Weatherstrip Replacement - Door Side
Front Side Door Weatherstrip Replacement - Door Side
Callout
Component Name
1
Front Side Door Weatherstrip Upper Retainer
Procedure
Open the front side door to the fully open position.
Remove the front side do ...
Rear Wheel Bearing and Hub Replacement (Disc Brake)
Special Tools
EN–45059 Angle Meter
For equivalent regional tools, refer to Special Tools.
Removal Procedure
Raise and suitably support the vehicle. Refer to Lifting and Jacking
the Vehicle.
Remove the tire and wheel assembly. Refer to Tire and Wheel Removal
and Insta ...
Special Tools
Illustration
Tool Number/ Description
EL 35616-F
J 35616
Terminal Test Kit
...
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