* Repair Manuals: These are your best bet for detailed information. You can find these online (e.g., eBay, Amazon) or at auto parts stores. Look for a Haynes or Chilton manual specifically for your year and model Buick. These manuals will give you exploded diagrams, torque specifications, and step-by-step instructions for repairs.
* Online Parts Catalogs: Websites like AutoZone, Advance Auto Parts, and Napa Auto Parts allow you to search for parts by your vehicle's year, make, and model. While not a complete breakdown, browsing through parts for the engine (e.g., intake manifold, cylinder head, crankshaft) can help visualize its components.
* Service Manuals (Factory Manuals): These are even more detailed than Haynes/Chilton but are typically more expensive. They often contain schematics and technical specifications not found in the aftermarket manuals.
* YouTube: Search YouTube for videos on "1993 Buick 3800 engine rebuild," "1993 Buick 3800 engine repair," or similar terms. You might find videos showing engine disassembly or specific repair procedures. Be cautious, though, as the quality and accuracy of these videos vary widely.
Keep in mind: The specific breakdown of your 3800 engine will also depend on the exact model of your Buick (e.g., Regal, Century, LeSabre). Always use your vehicle's VIN number when searching for parts or repair information to ensure accuracy.