Here's a *general* overview of the process. This is not a complete guide and should not be used as a substitute for a professional repair manual specific to your Cavalier's year and engine. Improperly performing this task can severely damage your engine.
Steps involved (in general):
1. Preparation: Disconnect the battery. Drain the engine oil completely. You'll likely need to remove various components for access, including:
* Intake manifold: This often requires disconnecting various vacuum lines, fuel injectors, and sensors.
* Valve covers: These provide access to the rocker arms and lifters.
* Timing chain or belt: This is crucial and requires precise alignment upon reassembly. Failure to align it properly can cause catastrophic engine damage. Consult a repair manual for proper procedures. You might even need to remove the camshaft.
2. Removing the lifters: Once you have access, you'll need to carefully remove the rocker arms and pushrods (if applicable). Then, you can remove the lifters themselves. They may simply lift out, or may require some persuasion. Note the position of each lifter to ensure correct reinstallation.
3. Inspecting and replacing lifters: Inspect the old lifters for damage. Replace *all* lifters, even if some seem okay. Replacing only some can lead to uneven wear and future problems.
4. Installing new lifters: Carefully install the new lifters, ensuring they are seated correctly.
5. Reassembly: This involves reversing the disassembly process, meticulously following the proper order and torque specifications. Pay close attention to the timing chain or belt alignment. Refer to your repair manual for the correct torque specifications for all bolts and nuts.
6. Refilling and testing: Reinstall the valve covers, intake manifold, etc. Refill the engine with the correct amount and type of oil. Start the engine and listen for any unusual noises. Check for oil leaks.
Crucial Considerations:
* Repair Manual: A factory service manual specific to your Cavalier's year, engine size, and transmission is absolutely essential. It will provide detailed instructions, torque specifications, diagrams, and crucial information about timing chain/belt alignment.
* Tools: You'll need a variety of tools, including sockets, wrenches, screwdrivers, a torque wrench (essential!), possibly a timing chain tool, and potentially a lifter removal tool.
* Experience: This is not a beginner project. If you're not comfortable working on engines, hire a qualified mechanic. Incorrectly performing this repair can lead to major engine damage and significant repair costs.
In short, changing lifters is a complex procedure. Consult a repair manual and strongly consider seeking professional assistance if you lack the experience. Attempting this without proper knowledge and tools can cause serious damage to your engine.
