Tools You'll Likely Need:
* Crankshaft pulley puller: This is absolutely essential. A three-jaw puller is generally recommended. Make sure it's the right size for your crankshaft pulley.
* Socket wrench and sockets: You'll need sockets that fit the crankshaft pulley bolt. This bolt is often very tight.
* Breaker bar or ratchet with extension: To loosen the crankshaft pulley bolt, you'll need significant leverage.
* Torque wrench: For proper reinstallation.
* Pry bar (possibly): May be needed to help break the pulley loose from the crankshaft.
* Penetrating oil (like PB Blaster): Apply this to the crankshaft pulley bolt several hours before attempting removal to help break the corrosion.
* Gloves and safety glasses: Always protect yourself.
Procedure:
1. Disconnect the battery: This is crucial to prevent electrical shorts.
2. Access the Crankshaft Pulley: You'll likely need to remove the serpentine belt and possibly other components (like the fan shroud or some lower accessory brackets) to gain access to the crankshaft pulley. Consult your repair manual for the specific steps.
3. Loosen the Crankshaft Pulley Bolt: This is often the hardest part. Before attempting this, make sure the engine is securely supported and the transmission is in park (automatic) or neutral (manual) with the parking brake engaged. Use your breaker bar or ratchet with extension on the crankshaft pulley bolt. You may need to hold the crankshaft stationary to prevent it from turning while you loosen the bolt. Some techniques for holding the crankshaft include:
* Using a wrench on the crank bolt through the inspection hole in the bell housing (manual transmission): This can be difficult and risky if you're not careful. Again, consult your repair manual.
* Using a special crankshaft holding tool: This tool fits into the flywheel or crankshaft and prevents rotation. It's a much safer method.
* Having a helper: A second person can use a wrench on a suitable part of the crankshaft to keep it stationary.
4. Remove the Crankshaft Pulley Bolt: Once loosened, remove the bolt completely.
5. Install the Crankshaft Pulley Puller: Carefully install the crankshaft pulley puller according to its instructions. Make sure it's properly seated on the crankshaft pulley.
6. Remove the Crankshaft Pulley: Slowly and carefully tighten the puller until the pulley is removed from the crankshaft. Use caution; the pulley can come off suddenly.
7. Clean and Inspect: Clean the crankshaft and pulley surfaces thoroughly before reinstallation.
8. Reinstallation: Reinstallation is the reverse of removal. Remember to use a torque wrench to tighten the crankshaft pulley bolt to the manufacturer's specified torque.
Important Considerations:
* Rust and Corrosion: The crankshaft pulley bolt is often extremely tight due to rust and corrosion. Be prepared for a significant amount of resistance.
* Damaged Threads: Be careful not to strip the crankshaft pulley bolt threads or damage the crankshaft itself. If the bolt breaks, it may require professional extraction.
* Repair Manual: This is critical. A repair manual specific to your 1992 Toyota Corolla/Prizm will provide detailed instructions, diagrams, torque specifications, and other important information.
If you're not comfortable performing this repair yourself, it's best to take your car to a qualified mechanic. Improper removal can cause significant engine damage.
