Tools You'll Need:
* Jack and jack stands: Essential for safely supporting the vehicle.
* Engine hoist or cherry picker: Highly recommended for safely lifting and supporting the engine.
* Socket set and wrenches: Various sizes will be needed, including those appropriate for the engine mount bolts.
* Torque wrench: Absolutely crucial for tightening bolts to the correct specification. Improper torque can lead to mount failure.
* Pry bar or large screwdriver: May be needed to help align the engine and mounts.
* Shop rags or towels: Keep things clean.
* New motor mounts: Obviously! Ensure you get the correct ones for your 1976 Corvette 350.
* Penetrating oil (like PB Blaster): To help loosen rusted bolts.
Steps:
1. Safety First: Disconnect the battery's negative terminal. Support the vehicle securely on jack stands. Never work under a car supported only by a jack.
2. Engine Support: Use an engine hoist or cherry picker to securely support the engine. This is vital to prevent it from falling or shifting during the process.
3. Remove Old Mounts: Locate the old motor mounts. These usually bolt to the engine block and the frame. Spray penetrating oil on the bolts well in advance to help loosen them. Carefully remove the bolts and detach the old mounts. Take pictures or make notes of the orientation of the mounts and any shims or washers before removing them – this will help during reinstallation.
4. Inspect Frame Mounts: Carefully inspect the frame mounting points for any damage or corrosion. Repair or replace as needed.
5. Install New Mounts: Carefully install the new motor mounts. Make sure they are correctly seated in both the engine block and the frame. Pay close attention to the orientation of any shims or washers.
6. Align Engine: Use the engine hoist to carefully lower and position the engine so that the mounts are correctly aligned with the frame mounts. This often requires some maneuvering. A pry bar might be helpful to nudge things into place.
7. Install Bolts: Install and tighten the bolts to the manufacturer's specified torque using a torque wrench. Do not overtighten.
8. Lower Engine: Slowly lower the engine using the hoist, ensuring that the mounts remain correctly seated.
9. Recheck Everything: Double-check all bolts for tightness. Make sure the engine sits level and securely in its mounts.
10. Reconnect Battery: Reconnect the negative battery terminal.
Important Considerations:
* Engine Alignment: Incorrect alignment can lead to vibrations, poor performance, and damage to other components.
* Torque Specifications: Follow the torque specifications precisely as given in your factory service manual. Overtightening can strip threads or damage the mounts.
* Professional Help: If you're uncomfortable performing this repair, consider seeking the assistance of a qualified mechanic. This is not a beginner-level job, and improper installation can have significant consequences.
This is a simplified overview. Refer to a factory service manual for a detailed, step-by-step guide specific to your 1976 Corvette. This will provide crucial details and diagrams necessary for a successful repair. Failing to do so could result in damage to your vehicle.
