Here's why:
* Accessibility: The engine mounts on these cars aren't always easily accessible. You'll likely need to work from underneath the car, potentially requiring jack stands and ramps. Some components may need to be removed or loosened to get sufficient clearance.
* Weight and Leverage: The engine is heavy. You'll need a reliable jack and jack stands to safely support the engine while you work. Improper support could lead to injury or damage.
* Bolts: Rust and seized bolts are common on older cars like a 1993 Corsica. Penetrating oil and potentially impact tools (like an impact wrench) might be necessary. Stripped bolts are a real possibility, adding complexity and potential cost.
* Torque Specifications: Proper torque is crucial to avoid damaging the engine or mounts. You'll need a torque wrench to ensure everything is tightened to the manufacturer's specifications.
* Space: Working under a car, especially an older one, can be cramped and uncomfortable.
In short: If you're comfortable working on cars, have the necessary tools (including a torque wrench, jack stands, and possibly an impact wrench), and have patience, you can likely manage the job. However, if you're a novice mechanic, it's probably a better idea to seek professional help or at least have someone experienced guide you through the process. A mistake could lead to significant damage. Consider the cost of professional labor versus the potential cost of a damaged engine or other components.