MARK VII CLUB
|Glossary of Lincoln Mark VII Terms|
Anti-Lock Braking System. They prevent the wheels from locking up and provide the shortest stopping distance on slippery surfaces or in the event of a panic stop.
A/C Clutch Compressor signal input to the EEC-IV processor relating status of the A/C clutch.
A/C Cycling Switch.
A/C Pressure Cut-out switch.
Air Cleaner Duct and Valve motor.
Air Conditioner Demand Switch
(Thermactor) Air Control Valve.
Aerodynamically styled headlamps integrated into the front bumper for a sleeker, more streamlined appearance.
(Thermactor) Air Bypass Valve.
Temperature or air surrounding an object.
Anti-lock Brake System (ABS)
Four-wheel ventilated disc brakes use sensors at each wheel to detect lockup. The system automatically pumps the brakes to release lockup and regain control.
Analog Volt-Ohm Meter.
The number of output shaft (on front-wheel-drive vehicles) or driveshaft (on rear-wheel-drive vehicles) revolutions required to rotate the drive wheels one full turn, typically about 3.00:1. Higher ratios (3.50:1) provide more torque to the drive wheels, resulting in better acceleration or easier trailer towing. Lower ratios (2.50:1) offer improved fuel efficiency by reducing engine rpm for a given road speed.
BACKSPACE Backspace is the distance between the wheel mounting face and the inner edge of the wheel rim.
Idle RPM determined by throttle lever hardest on throttle body while idle speed control is fully retracted and disconnected.
Break Out Box. An EEC-IV test device which connects in series with the processor and the EEC-IV harness and permits measurements of processor inputs and outputs.
Brake On-Off input to the EEC-IV processor indicating a braking drive mode.
Turbo charger boost solenoid or it’s control circuit.
The first two muffler like devices in the exhaust system containing a monolithic substrate (a honeycomb structure) that is coated with catalytic metals such as platinum or palladium. When hot exhaust gases come in contact with these metals, a chemical reaction takes place to consume unburned hydrocarbon, carbon monoxide and nitrous oxides.
see CHECK ENGINE LIGHT
An engine shaft that uses inclined lobe sections, or cams, to open the valves that control the flow of intake and exhaust gases. Camshafts may be mounted in the block, where they operate the valves via pushrods. In performance-oriented vehicles using an overhead cam layout, camshafts are typically mounted in the cylinder head. In this case, the camshafts are driven by a belt or chain and operate the valves directly, although they can also operate indirectly via rockers.
Chlorofluorocarbon (CFC) compounds contribute to the depletion of the Earth's ozone layer. To help protect the environment, all new Lincoln vehicles use CFC-free air-conditioning refrigerants.
Central Fuel Injection. A computer controlled fuel metering system which sprays atomized fuel into a throttle body mounted atop an intake manifold.
CHECK ENGINE LIGHT
A dash panel light used either to aid in the identification and diagnosis of EEC system problems or to indicate that maintenance is required on older vehicles.
The portion of the engine's cylinder where the air/fuel mixture is ignited and converted into mechanical energy. The optimized shape of the clamshell combustion chamber design often used in Lincoln engines promotes complete burning (for low emissions) and high efficiency (for good fuel economy).
The chambers inside the engine, containing the pistons. The valves control the fuel-air mixture, which is then compressed and ignited by a spark. The force of this ignition moves the pistons, creating the engine power.
A gear set used in a vehicle's final-drive assembly that allows the wheels to rotate at different speeds. During cornering, this allows the wheels at the outside of the turn to rotate faster than the wheels on the inside of the turn.
The rotating shaft that transfers power from the transmission to the rear-wheel axle.
EAS ELECTRONICALLY CONTROLLED AIR SYSTSEM
Working in tandem with shocks, the air springs expand or compress to absorb road bumps, providing a smoother, more controlled ride.
The largest single component or unit designed to house cylinders, cooling jacket, crankcase and all other elements of the engine.
Firing Order/Spark sequence
The sequence that results in the ignition of the fuel-air mixture in the cylinder's combustion chamber. High-tension voltage jumps across the spark plug or device inserted into the combustion chamber. This creates a spark that ignites the fuel-air mixture, which in turn powers the engine
.Keyless Entry Keypad
In front-wheel drive, the transaxle combines the transmission and driving axles in a compact unit, saving weight and space inside the passenger compartment.
Components such as tires, wheels and brakes are not supported by the suspension and are considered unsprung weight. Reducing unsprung weight improves ride and handling by allowing the tires to respond more rapidly to road irregularities.
Two banks of four cylinders each arranged in a V, creating a more compact engine with less engine vibration. Lincoln V-8 engines have four valves per cylinder. Four-valve cylinder designs remain the leading edge in powertrain engineering, because they use two intake and two exhaust valves per cylinder. This boosts power by improving the flow of air-fuel mixture into the engine and exhaust gas out of the engine. Also, because each valve can be smaller and lighter than the valves in a two-valve design, maximum rpm—thus power—can be greater. The layout of the four-valve combustion chamber additionally places the spark plug in the ideal central position for complete combustion, improving performance and lowering exhaust emissions.
Valves open and close to control the flow of liquid or gas, and the fuel-air mixture in the cylinders. Four valves per cylinder increase flow, efficiency and performance, as well as improving engine ventilation — both intake and exhaust — power at high rpm.
Ventilated disc brakes
Unlike drum brakes, disc brakes use disc-shaped rotors and brake pads lined with a heat-resistant material. When the brake pedal is depressed, the brake pad presses against the rotor attached to the wheel, slowing the vehicle down. Disc brakes dissipate heat and retain braking power better than drum brakes. Ventilated disc brakes have ventilation holes, additionally improving heat dissipation.
Occurs with a lack of traction, or grip on the road—most common on wet road surfaces. In wheel slip, the wheels spin in place without propelling the vehicle. This wears the tires, in addition to making it difficult for a driver to steer the vehicle in the desired direction. Traction control limits wheel slip under acceleration.
The distance between the front- and rear-wheel center points. Longer wheelbases contribute to improved ride comfort, interior roominess and stable handling.
A system that automatically monitors and compares vehicle yaw rates (side-to-side movement) with steering-wheel orientation and other parameters. This helps detect tire slippage while cornering, so that individual brakes may be applied or engine power reduced in order to return the vehicle to the intended path.