Here's a general outline. Specific details may vary slightly depending on the exact model and any modifications. Consult a 1973 Corvette repair manual for detailed instructions and diagrams specific to your vehicle.
1. Preparation:
* Safety First: Disconnect the negative battery cable.
* Gather Tools: You'll need various wrenches (sockets, open-end, etc.), screwdrivers, possibly a fuel pump disconnect tool, jack stands, and safety glasses.
* Raise and Support the Car: Securely lift the Corvette and place it on jack stands. Never work under a car supported only by a jack.
2. Fuel System Disconnection:
* Fuel Lines: Carefully disconnect the fuel lines from the tank. You'll likely need to use a wrench to loosen clamps. Have rags ready to absorb any spilled fuel. Consider using fuel line clamps to plug the ends of the disconnected lines.
* Fuel Sender Unit: Disconnect the electrical connector for the fuel level sender.
* Fuel Pump (if applicable): If the fuel pump is mounted on the tank, you'll need to disconnect it. This may require special tools depending on its design.
* Vent Line: Disconnect the vent line from the tank.
3. Tank Removal:
* Straps/Supports: The fuel tank is held in place by straps or supports. You'll need to locate and carefully remove these. This often involves removing bolts or nuts.
* Lowering the Tank: Carefully lower the tank. It's often heavy and contains residual fuel, so be cautious. You may need to use a helper or a suitable lifting device. Avoid scratching the paint or damaging the tank.
* Tank Removal: Once the straps/supports are disconnected, carefully remove the fuel tank from the car. You might need to maneuver it around components of the exhaust system or other parts of the chassis.
4. Cleaning and Inspection (Optional):
* Once the tank is out, this is a good time to inspect it for rust, damage, or leaks. You might also want to clean the area where the tank sits.
5. Reassembly:
Reassembly is the reverse of the removal process. Ensure all connections are secure and free of leaks. Double-check fuel lines for proper routing and connections.
Important Considerations:
* Fuel Tank Pressure: There may be pressure inside the fuel tank. Releasing this pressure slowly and carefully can help prevent spills.
* Residual Fuel: Always expect some residual fuel to remain in the tank. Take precautions to prevent spills and fires.
* Repair Manual: A 1973 Corvette repair manual is invaluable for detailed instructions and diagrams. This description provides a general overview, and specifics may vary.
This process is not simple and should only be attempted by someone comfortable with automotive repair. If you're unsure about any step, consult a professional mechanic. Improper fuel tank removal can lead to injury or damage to your vehicle.
