Chevrolet Sonic Repair Manual: Piston and Connecting Rod Disassemble
- Remove the piston with connection rod. Refer to Piston, Connecting Rod, and Bearing Removal.
- Detach the piston from the connection rod.
- Remove the retainer (1) from the piston eye.
- Press the piston pin out of the piston.
- Remove the piston rings, using piston ring pliers (1).
Remove oil carbon from the groove with a split piston ring, filed to a wedge-shape.
- Measure the piston ring gap.
Note:
Note installation position of the piston in respect of the connection rod.
Note:
Do not damage the bore.
- Tension the piston ring in the cylinder and measure the gap with a feeler gauge.
- Permissible ring gap:
- Rectangular compression ring (1): 0.20-0.40 mm (0.007-0.015 in)
- Tapered compression ring (2): 0.40-0.60 mm (0.015-0.023 in)
- Oil scraper ring (3): 0.25-0.75 mm (0.009-0.029 in)
Permissible vertical play:
- Rectangular compression ring (1): 0.04-0.08 mm (0.001-0.003 in)
- Tapered compression ring (2): 0.03-0.07 mm (0.001-0.002 in)
- Oil scraper ring (3): 0.03-0.13 mm (0.001-0.005 in)
Piston and Connecting Rod Assemble
Special Tools
EN-49941 Remover / Installer Piston Retainer Ring
For equivalent regional tools, refer to Special Tools.
Note: Lubricate the piston pin with clean engine oil.
In ...
Piston, Connecting Rod, and Bearing Cleaning and Inspection
Special Tools
EN-470-B Angular Torque Wrench
For equivalent regional tools, refer to Special Tools.
Visual Inspection And Cleaning Procedure
Connecting Rod
Warning: Wear safety gla ...
Other materials:
Fuses and Circuit Breakers
The wiring circuits in the vehicle are protected from short circuits by a combination
of fuses, circuit breakers, and fusible thermal links. This greatly reduces the
chance of fires caused by electrical problems.
Look at the silver-colored band inside the fuse. If the band is broken or melted, ...
Floor Panel Carpet Replacement
Floor Panel Carpet Replacement
Callout
Component Name
Preliminary Procedures
Remove front seats. Refer to Driver or Passenger Seat Removal and
Installation.
Remove rear seat cushion. Refer to Rear Seat Cushion Removal and ...
Draining Fluids and Oil Filter Removal
Place a drip pan underneath.
Remove the oil filter cap (1).
Remove the oil filter cap seal (2).
Remove and properly dispose of the oil filter insert (3).
Re-install the oil filter cap.
Remove the oil drain bolt.
Drain the engine oil into the drip pan.
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