- Do It Yourself Auto Repair
The Mechanics' Lingo
Self-Propelled Vehicles- Vehicles that are powered by ones self.
Frame/Body- Provides support for the suspension and steering components along with the power train.
Body-on-frame (BOF) – A separate frame and body.
Inline Engines- Four to Six cylinder engines that were arranged inline.
Flathead- The cylinder head simply covered the combustion chamber and includes a hole for the spark plug.
Overhead Valve- Valves are located in the cylinder head.
Single Overhead Camshaft- One camshaft is viable for the intake and exhaust valve.
Double Overhead Camshaft- Two separate camshafts, one viable for intake valve and the second is viable for the exhaust valve.
Water Pump- Circulates coolant.
Water Jackets – the passages in the cylinder block and head.
Radiator – Cools coolant by releasing the heat into the air.
Thermostat- Located in the Coolant Passage. – Maintains the coolant temperature.
Oil Pan/Oil Sump - Holds 3-7 liters of oil.
Oil Pump - Forces the oil under pressure through an oil filter.
Oil Filter - Filters oil.
Oil Galleries - Passages in the block and head.
Air Filter- Filters air.
Intake Manifold- Governs the air-fuel mixture in the engine to the relative cylinder where it is used to produce power by burning.
Evaporative Emissions Control System (EVAP System)- Prevents gasoline fumes an vapors from being released.
Intake Valve - When open, the piston descends downward, drawings a mixture of air and fuel into the cylinder.
Exhaust Valve - The valve that opens to let the burned gases out of the cylinder by the piston.
Spark Plugs - Provide an air gap inside the cylinder where a spark occurs to start combustion.
Ignition Coil – Increase battery voltage to 5,000 to 40,000 volts.
Ignition Control Mode (ICM)- Controls when the sparkplug fires.
Associated Wiring- electronically connects the battery, ICM, coil, and spark plugs.
Combustion Chamber- Power chamber, in which chemical energy of gasoline is converted into heat energy.
Combustion- The chemical energy in fuel is converted to heat energy by burning of the fuel at a controlled rate.
Internal Combustion Engine- Engine combustion occurs within the power chamber.
External Combustion Engine- Burns fuel outside of the engine itself, ex. Steam engine.
Mechanical Force- The pressure developed with in the combustion chamber.
Mechanical Power- Useful energy
Block- solid frame; cradle that everything sits in.
4 stroke – Intake, Compression, Power, Exhaust.