<human>:  How to disassemble a car engine?
<bot>: To disassemble a car engine, first remove any essential components such as wiring harnesses, alternators, and other components that are attached to the engine. Next, detach the fuel line and exhaust system from the engine. After that, remove the engine mountings, to unbolt the engine from the frame. Once the engine is free, the car oil pan, fuel injection system, air intake, and other associated components can be safely removed and disassembled individually. Finally, loosen the main bolts that hold the engine block together, and separate the cylinder head and block to complete the disassembly.