How to replace the exhaust camshaft and lash adjuster on Chevrolet Cobalt?

Begin exhaust camshaft and lash adjuster replacement operation by removing the exhaust camshaft position actuator. Detach each bearing cap bolt by turning it one revolution while marking the bearing caps for later use in proper reinstallation. The necessary steps start with bearing cap bolt extraction followed by bearing cap removal and exhaust camshaft extraction from the system. Separate all components of roller followers and hydraulic adjusters for reinstallation and afterward take out camshaft roller followers, hydraulic adjusters. Place the hydraulic element adjusters inside their bores in the Cylinder Head while applying gm pn 12345501 (Canadian PN 992704) or equivalent lubricant to both adjusters and valve tips. Used roller followers need to maintain their original position on the camshaft during installation. When the camshaft requires replacement it means you need to replace the associated roller followers which operate with it. Working with the same lubricating material transfer the roller followers onto the kale stem tip and lash adjuster. After lubricating the exhaust camshaft you should install it while tightening all bolts on the bearing caps by hand. To complete the repair stage you should first hand-tighten all bearing cap bolts before expanding the torque to 10 nm (89 inch lbs.) through alternating bolt movements of 3 turns. Reinstall the exhaust camshaft position actuator afterward.

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Product Specifications
- Other Name: Camshaft, Engine; Camshaft
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2009-2010 Chevrolet Cobalt | Base, LS, LT | 4 Cyl 2.2 L GAS
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Chevrolet Cobalt Camshaft Part Number: 12589335
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Product Specifications
- Other Name: Camshaft Assembly-Intake; Camshaft, Engine
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2008-2010 Chevrolet Cobalt | SS | 4 Cyl 2.0 L GAS
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Chevrolet Cobalt Camshaft Part Number: 12590700
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Product Specifications
- Other Name: Camshaft, Engine
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007-2008 Chevrolet Cobalt | LS, LT, LTZ | 4 Cyl 2.2 L GAS
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Chevrolet Cobalt Camshaft Part Number: 12589340
$119.03 MSRP: $167.04
You Save: $48.01 (29%)
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Product Specifications
- Other Name: Camshaft, Engine
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2008-2010 Chevrolet Cobalt | SS | 4 Cyl 2.0 L GAS
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Chevrolet Cobalt Camshaft Part Number: 12587985
$192.47 MSRP: $285.71
You Save: $93.24 (33%)
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Product Specifications
- Other Name: Camshaft, Engine
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005-2007 Chevrolet Cobalt | SS | 4 Cyl 2.0 L GAS
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Chevrolet Cobalt Camshaft, Green Line Part Number: 12578512
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Ships in 1-3 Business Days
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Product Specifications
- Other Name: Camshaft, Engine
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2008 Chevrolet Cobalt | Sport, SS | 4 Cyl 2.4 L GAS
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Chevrolet Cobalt Camshaft Part Number: 12578511
$175.09 MSRP: $275.49
You Save: $100.40 (37%)
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Product Specifications
- Other Name: Camshaft Assembly-Intake; Camshaft, Engine
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2008 Chevrolet Cobalt | Sport, SS | 4 Cyl 2.4 L GAS
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Chevrolet Cobalt Camshaft Part Number: 90537667
Product Specifications
- Other Name: Camshaft Assembly-Intake Nockenwelle Z; Camshaft, Engine
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005-2006 Chevrolet Cobalt | Base, LS, LT, LTZ | 4 Cyl 2.2 L GAS
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Chevrolet Cobalt Camshaft Part Number: 12621516
Product Specifications
- Other Name: Camshaft Assembly-Intake; Camshaft, Engine
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2009-2010 Chevrolet Cobalt | Base, LS, LT | 4 Cyl 2.2 L GAS
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Chevrolet Cobalt Camshaft Part Number: 90537666
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Product Specifications
- Other Name: Camshaft, Engine
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005-2006 Chevrolet Cobalt | Base, LS, LT, LTZ | 4 Cyl 2.2 L GAS
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Chevrolet Cobalt Camshaft Part Number: 12590699
Product Specifications
- Other Name: Camshaft Assembly-Intake; Camshaft, Engine
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007-2008 Chevrolet Cobalt | LS, LT, LTZ | 4 Cyl 2.2 L GAS
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Chevrolet Cobalt Camshaft Part Number: 12584363
Product Specifications
- Other Name: Camshaft, Engine
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005-2007 Chevrolet Cobalt | SS | 4 Cyl 2.0 L GAS

Chevrolet Cobalt Camshaft

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The Camshaft in Chevrolet Cobalt cars actively participates in determining the position and opening and closing of the intake as well as exhaust valves to allow for air/fuel mixture into the cylinders for combustion. position of a camshaft varies and depend on the kind of engine, they can be found within the Cylinder block or can be placed on the Cylinder head, the various types include Over Head Valve (OHV), Single Over Head Cam (SOHC), Double Over Head Cam (DOHC) engines. Camshaft works in conjunction with crankshaft to pick the correct time for opening of the valves and movement of the piston. The vehicles can have performance camshafts to increase the horsepower, fuel consumption rate, and efficiency of the engine. These performance camshaft have got higher lift and longer duration that enhance the airflow and power especially at high speeds. Lobe separation of the camshaft also has impacts on torque and power productions; close LSA brings in more torque at lower revs while large LSA increases the breadth of the power curve. Altogether, the camshaft is defined as one of the key aspects to develop maximal performance and profitability of Chevrolet Cobalt autos.

Chevrolet Cobalt Camshaft Parts Questions & Experts Answers

Camshaft
90537666
Q: How to replace the exhaust camshaft and lash adjuster on Chevrolet Cobalt?
A:
Begin exhaust camshaft and lash adjuster replacement operation by removing the exhaust camshaft position actuator. Detach each bearing cap bolt by turning it one revolution while marking the bearing caps for later use in proper reinstallation. The necessary steps start with bearing cap bolt extraction followed by bearing cap removal and exhaust camshaft extraction from the system. Separate all components of roller followers and hydraulic adjusters for reinstallation and afterward take out camshaft roller followers, hydraulic adjusters. Place the hydraulic element adjusters inside their bores in the Cylinder Head while applying gm pn 12345501 (Canadian PN 992704) or equivalent lubricant to both adjusters and valve tips. Used roller followers need to maintain their original position on the camshaft during installation. When the camshaft requires replacement it means you need to replace the associated roller followers which operate with it. Working with the same lubricating material transfer the roller followers onto the kale stem tip and lash adjuster. After lubricating the exhaust camshaft you should install it while tightening all bolts on the bearing caps by hand. To complete the repair stage you should first hand-tighten all bearing cap bolts before expanding the torque to 10 nm (89 inch lbs.) through alternating bolt movements of 3 turns. Reinstall the exhaust camshaft position actuator afterward.