Every vehicle is a parts warehouse: its battery stores electricity, its alternator generates it, its engine and starter motor turn energy into motion, its springs, belts, bearings and gears serve in mechanisms, and its glass, mirrors and fluids all have second uses. Take parts in a safe order: remove the battery negative terminal first, support the vehicle on stands, relieve stored pressures, and only then unbolt anything.
A car that will never drive again still holds a generator, a battery, an engine, springs, wire and mirrors. What turns it from a hulk into a workshop is knowing which parts are worth the work and which hold stored energy.
The Value Is In A Few Families Of Parts
The parent article describes a single automobile as holding over 30,000 parts, among them a generator for 12 V electricity, a battery that stores it, an engine that turns fuel into mechanical power and springs that support tons. Most are not worth removing. The groups worth taking are:
- Electrical: battery, alternator, starter motor and wiring. See Batteries, Alternators & Wiring.
- Mechanical: leaf and coil springs, belts, bearings, gears and differentials. See Springs, Belts, Bearings & Gears.
- Optical: windscreen and side glass, mirrors, headlight reflectors and lenses. See Glass, Mirrors, Lights & Reflectors.
- Fluids: motor oil, coolant, brake fluid, transmission fluid and washer fluid. See Fluids: Oil, Coolant, Brake Fluid.
- Power: the engine itself, for stationary use. See Repurposing Engines & Motors.
What You Need
- Wrench and socket sets, screwdrivers, pry bars and hammers.
- Jack stands, cribbing and wheel chocks. A jack alone is not support.
- Containers for fluids, and rags and sand for spills.
- Gloves, eye protection and boots.
- A lifting aid such as a chain fall for heavy items, and a partner.
Method: Work In The Order That Keeps You Alive
Step 1: Park on level ground, chock the wheels and set the brake.
Step 2: Isolate the battery. Remove the negative terminal first; see Battery & Electrical Safety.
Step 3: Wait before touching airbag areas; the parent article advises 10 minutes after disconnecting the battery. See Mechanical Hazards.
Step 4: Support the vehicle on stands or cribbing before going underneath.
Step 5: Drain fluids into labelled containers before removing the parts that hold them.
Step 6: Take the high-value parts first: battery, alternator, starter, then wiring, springs, glass and mirrors.
Step 7: Label and store what you remove, by use, in a dry place.
Common Mistakes
- Starting with the engine. It is heavy and risky; take small high-value parts first.
- Working under a vehicle on a jack alone. A vehicle falling off a jack is invariably fatal (parent article).
- Cutting before disconnecting. Live wire and pressurised lines turn a cut into an injury.
- Mixing fluids. Coolant, oil and fuel in unmarked containers are dangerous.
Safety
A vehicle holds stored electrical, chemical and mechanical energy
The battery can drive a huge current if its terminals are bridged, and it gives off explosive hydrogen. Airbags and seatbelt pretensioners contain explosive charges. Springs, gas struts, the fuel system and the air-conditioning system hold stored pressure. A vehicle weighs 1,500-3,000 kg according to the parent article, and never rests safely on a jack alone. Work through Safe Extraction Procedures before the first bolt comes out.
What’s Next
- Learn next: Safe Extraction Procedures — the order of operations
- Combine with: Batteries, Alternators & Wiring — the first parts to take