How to replace the Rocker Shaft Spring Kit and valve stem oil seal on 2004 Buick Century?

Remove the valve stem oil seal and valve spring with the piston at Top Dead Center. Disconnect the spark plug and rocker arm, and apply compressed air to the plug port adapter. Squeeze the valve spring, take off the valve locks and check the spring. Reassemble the parts and install new oil seal, spring and cap.

OEM 2004 Buick Century Rocker Shaft Spring Kit

Rocker Shaft Spring Set

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1 Rocker Shaft Spring Kit found

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2004 Buick Century Valve Springs Part Number: 10166343
$13.11
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Product Specifications
- Other Name: Spring, Engine Valve; Valve Spring
- Item Weight: 0.50 Pounds
- Item Dimensions: 2.7 x 1.9 x 1.5 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 10166343
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2004 Buick Century Submodels:
- Custom, Limited, Special, Special Edition | 6 Cyl 3.1 L GAS

2004 Buick Century Rocker Shaft Spring Kit

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2004 Buick Century Rocker Shaft Spring Kit Parts and Q&A

Q: How to replace the Rocker Shaft Spring Kit and valve stem oil seal on 2004 Buick Century?
A: Remove the valve stem oil seal and valve spring with the piston at Top Dead Center. Disconnect the spark plug and rocker arm, and apply compressed air to the plug port adapter. Squeeze the valve spring, take off the valve locks and check the spring. Reassemble the parts and install new oil seal, spring and cap.