Once again, the MACS office is beginning to receive calls about bad, contaminated or mislabled refrigerant. Some folks in theU.S.are receiving offers to purchase refrigerants that contain hydrocarbons (HC), notably under the designations HC-12a or similar names. All of these are listed as “unacceptable for use” on the EPAs companion page to the SNAP list.
The compressor is usually belt-driven by the engine crankshaft, and engages through an electromagnetic clutch.
The Ford owners’ and enthusiasts forums on the Internet are awash in questions and discussions of Ford Motor Company’s recently-announced gradual changeover to a standard coolant for all their engines. Some owners are concerned that their favorite car company has crossed over to “the dark side” and adopted General Motors Dex-Cool, a sure sign of an automotive apocalypse.
Rotary vane compressors contain a solid rotating cylinder called an impeller. The impeller is equipped with vanes that move in and out of slots in the impeller.
There are two types of piston compressors currently in use, the opposed axial type, (also often referred to as the swash plate type), and the single row axial or wobble-plate type. Depending on design, these compressors may contain five, six, seven, or ten pistons.
With either type of piston compressor, the pumping action of the pistons draws low
Soon temperatures will tumble, sweaters and jackets will come out and in order to be comfortable you’ll choose to turn on the heat inside your car. How does heated air get into your car?
A vehicle has many electrical circuits. For an electrical component to function properly, the electricity must return to the source through the ground side of the circuit. Ground paths are usually metal conductors such as wires or the vehicle frame, engine or body.
One way to check for proper coolant circulation is to check the upper and lower radiator hoses. The upper radiator hose should be hot, around 190–200 °F. (The safest and…
One important point about antifreeze: there are now many different formulations available for use in different vehicles, and even in specific applications. It’s not just “the green stuff” any more, there’s red, orange, yellow, blue, etc.
As the weather turns cooler and windshields become fogged up or frosty, you’ll want to activate the defrost button.
