Cobalt L4-2.2L (2008)
Connecting Rod: Service and Repair
Piston, Connecting Rod, and Bearing Replacement
Special Tools
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J 43953 Connecting Rod Guide Pin
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J 43953 Piston Ring Compressor
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J-43966-1 Connecting Rod Guides
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J 45059 Angle Meter
Removal Procedure
1. Remove the oil pan. Refer to Oil Pan Replacement (See: Engine Lubrication/Oil Pan/Service and Repair) .
2. Remove the cylinder head. Refer to Cylinder Head Replacement (See: Cylinder Head Assembly/Service and Repair) .
3. If a ring ridge is present, remove the ring ridge as follows:
1. Turn the crankshaft until the piston is at the bottom of the stroke.
2. Place a cloth on top of the piston.
3. Use a ridge reamer to remove the ring ridge.
4. Turn the crankshaft so the piston is at top of the stroke.
5. Remove the cloth and cutting debris.
Important: Place the numbers on connecting rods and the connecting rod caps. The connecting rod caps must be assembled to their
original connecting rods.
4. Remove the connecting rod nuts and the connecting rod cap.
Discard the bolts and nuts.
