Accessing the Upper Bellhousing Bolts:
The primary challenge with these bolts is their location – they're often tucked away behind the engine, making direct access difficult. You'll likely need a combination of extensions, wobbly sockets, and possibly even universal joints to reach them.
* Transmission Removal (Highly Recommended): The easiest way to access the upper bellhousing bolts is to remove the transmission *first*. This significantly improves access and reduces the risk of damage. This requires disconnecting the driveshafts, torque converter, and various linkages and sensors. A transmission jack is essential here.
* Working from Above: If you opt to try accessing them without removing the transmission (not recommended), you'll need to work from the engine bay, using long extensions and flexible tools. A mechanic's creeper and possibly a mirror might be beneficial. Prepare for some contortions!
* Bolt Types and Size: Be aware of the bolt type (likely metric) and size. Use the correct socket and avoid stripping the bolt heads.
Other Potential Problems During Engine Removal:
* Exhaust Manifolds: These can be difficult to disconnect, especially if rusted. Penetrating oil applied well in advance is crucial. You may need to use a breaker bar and potentially a torch to loosen stubborn bolts.
* Wiring Harnesses: Carefully disconnect all engine-related wiring harnesses. Take photos or make diagrams before disconnecting to aid reassembly. Labeling harnesses with tape and a marker is highly recommended.
* Cooling System: Drain the coolant completely before disconnecting hoses and the radiator.
* Fuel Lines: Disconnect the fuel lines carefully and safely. You may need to relieve pressure from the fuel system. Use caution and proper safety measures to avoid fire hazards.
* Power Steering Lines: Disconnect these carefully to prevent fluid spillage.
* A/C Lines: Disconnect the A/C lines if equipped; take precautions to prevent refrigerant leaks. It's best to have the system professionally evacuated and recharged afterwards.
* Motor Mounts: You'll need to disconnect and remove the engine mounts before you can lift the engine out.
* Engine Lifting: Use an appropriate engine hoist with adequate lifting capacity and secure straps. Ensure the hoist is properly balanced to prevent tipping or dropping the engine.
Tools You'll Likely Need:
* Engine hoist
* Transmission jack (strongly recommended)
* Socket set (metric)
* Wrench set (metric)
* Extensions and wobbly sockets
* Universal joints
* Breaker bar
* Penetrating oil
* Ratchet
* Pry bar
* Drain pans
* Safety glasses
* Gloves
* Shop rags
* Torque wrench
Recommendation: This is a complex job. Unless you have significant experience working on vehicles, it's strongly recommended that you take it to a professional mechanic. Engine removal is not a beginner-level task, and improper procedures can lead to damage to your vehicle or personal injury. The cost of professional labor is likely less than the cost of repairing damage caused by an improperly performed removal. Also, consult a repair manual specific to your 1997 Mercury Mountaineer for detailed instructions and torque specifications.
