Here's a general outline. Specifics may vary slightly depending on the engine (small block or big block) and transmission (automatic or manual). Always consult a repair manual specific to your 1977 Chevrolet Caprice for detailed instructions and diagrams. A Haynes or Chilton manual is a good investment.
1. Preparation:
* Disconnect the battery's negative terminal. This is crucial to prevent accidental shorts and injury.
* Gather your tools: You'll need a socket wrench set (metric and/or SAE, depending on your car), various wrenches, possibly a breaker bar, a jack and jack stands (to safely lift the car), possibly a pry bar, and a wire brush for cleaning connections. A new starter is assumed.
* Locate the starter: It's typically on the driver's side of the engine, near the bell housing (the part connecting the engine to the transmission).
2. Accessing the Starter:
* Raise the vehicle and support it securely with jack stands. Never work under a vehicle supported only by a jack.
* Depending on your Caprice's setup, you might need to remove various components to access the starter. This could include:
* Exhaust components: Parts of the exhaust system might need to be loosened or removed for better access.
* Wiring harnesses: Some wiring might need to be disconnected or moved out of the way.
* Shifter linkage (automatic transmission): You might need to disconnect the linkage to gain enough clearance.
* Other components: Your repair manual will specify which components, if any, need to be removed.
3. Removing the Old Starter:
* Disconnect the electrical connections to the starter. There will be at least two large cables – one positive and one from the ignition switch. Take photos or make notes of where they connect before disconnecting. Clean the battery terminals with a wire brush.
* Remove the starter mounting bolts. These are usually two or three large bolts. They can be stubborn, so a breaker bar might be necessary.
* Carefully remove the starter. It might be a tight fit, and a pry bar (used carefully) might be helpful, but avoid damaging surrounding components.
4. Installing the New Starter:
* Clean the starter mounting surface on the engine block. Ensure it's free of debris.
* Align the new starter with its mounting holes.
* Install the mounting bolts and tighten them securely. Don't overtighten.
* Reconnect the electrical connections. Make sure they're secure and properly connected. Double-check your connections against your photos or notes.
* Reconnect any components you removed (exhaust, wiring, etc.)
5. Testing and Finishing:
* Lower the vehicle.
* Reconnect the battery's negative terminal.
* Try starting the car. If it doesn't start, double-check all connections and ensure the new starter is properly installed.
Important Considerations:
* Torque specifications: Your repair manual will list the proper torque specifications for the starter mounting bolts. Overtightening can damage the starter or engine block.
* Grounding: Ensure a good ground connection for the starter. A poor ground can lead to starting problems.
* Professional help: If you are unsure about any step, it's best to seek professional help from a qualified mechanic. Incorrect installation can lead to further damage or injury.
This is a general overview. Always consult your repair manual for detailed, model-specific instructions. Failure to follow proper procedures could result in damage to your vehicle or personal injury. Remember safety first!