What is an AC compressor in a car?
AC compressor is an important part in the car’s air conditioning system. In the words of many repairmen, an AC compressor is the heart of an AC system. In simple terms, an AC compressor is a pump which creates the heat by putting the air conditioning refrigerant under extremely high pressure.
What is a compression test on a VW engine?
A compression test is a basic part of a routine tune up for an air cooled Volkswagen engine. With these instructions you can check the engine compression yourself. Compression is a measurement of the pressure that builds up within a cylinder as the piston rises and both valves are closed.
What kind of compression should a VW air cooled engine have?
Below is a chart that tells you what sort of compression pressures your air cooled VW engine should have. It is desirable to have high compression and relative uniformity among the cylinders. Variations from cylinder to cylinder should be no more than 14 to 20 pounds depending upon your engine’s compression ratio.
What does EPC light mean on VW Golf?
Your Volkswagen Golf’s Electronic Power Control (EPC) light is a warning light that indicates that there is trouble with one of the critical safety and engine components of your vehicle. These components include the gas pedal, traction control, cruise, ABS, steering system, and the throttle body.
What's the difference between Kompressor and Turbo?
A turbocharger is powered by exhaust pressure,a “kompressor” or supercharger is powered by the crankshaft. Kompressor is what Mercedes labels their supercharged engines, not turbocharged. Both are forced induction to increase performance.
How does Kompressor engine work?
Differentiating itself from a turbocharger, the Kompressor uses a belt attached directly to the car's crankshaft. This crankshaft is designed to convert the linear motion of the pistons into a rotational energy that is further converted to whatever mechanical or electrical needs the car requires.
Is a Kompressor supercharged?
Kompressor (stylized as KOMPRESSOR) is a marketing name for forced induction (supercharged) Mercedes-Benz engines. The term is not widely used by other motor manufacturers.
Is Kompressor fast?
Top speed was governor limited at 131 mph--not that you'd be likely to get it going that fast even without the governor. Those stats were when the C230 was new.
Why is it called the Kompressor?
In simple terms, a supercharger is an air compressor, hence Mercedes-Benz's slightly stylized Kompressor name. This means that the compressed air is forced into the engine to provide extra power.
Is a supercharger better than a turbo?
Supercharging Pros: Produces significantly more horsepower than turbocharging. A quick solution to boosting power in larger displacement engines with more cylinders. No power lag as is seen with turbocharging; power delivery is instantaneous.
What is a supercharger on a car?
What is a Supercharger? A supercharger is an air compressor that increases the pressure of air supplied to an internal combustion engine. This aids in higher power output as the engine gets more oxygen in each of its intake cycles and helps it to burn more fuel.
What do you mean by supercharging?
Definition of supercharge transitive verb. 1 : to charge greatly or excessively (as with vigor or tension) 2 : to supply a charge to the intake of (an engine) at a pressure higher than that of the surrounding atmosphere.
What is the difference between Kompressor and 4matic?
4matic means 4 wheel drive and automatic, while Kompressor means supercharged.
How much horsepower does a C230 Kompressor have?
189 hp @ 5,800 rpmUsed 2005 Mercedes-Benz C-Class C230 Kompressor Specs & FeaturesEngineBase engine typeGasHorsepower189 hp @ 5,800 rpmTorque192 lb-ft @ 3,500 rpmValves164 more rows
How fast is a Mercedes Kompressor?
Top Speed (electronically limited): 210 km/h (130 mph) Curb Weight: 1,475 kg (3,252 lbs) Seating Capacity: 5.
How much is a Mercedes Kompressor?
Prices for a used Mercedes-Benz C-Class C 230 Kompressor currently range from $4,490 to $7,999, with vehicle mileage ranging from 77,291 to 248,000....Mercedes-Benz C-Class Listings by Year.Vehicle2017Price From$16,990Excellent Price93 listingsAccident Free444 listingsTotal Available647 listings9 more columns
Why is the compression ratio of a bug engine lower?
And in the bug engine, with it's higher cylinder head temps compared to a water cooled car, the compression ratio must be a little lower to prevent detonation (on the same fuel), compared to it's water cooled cousins.
What compression ratio should I use for a 1600 engine?
If your engine has been rebuilt correctly, it should have a compression ratio of about 7.5:1, assuming flat pistons. If the pistons are dished, the compression ratio will be lower -- 7.2: or less. This should run okay on 91 RON octane -- normal unleaded in Australia (87AKI is the equivalent in the USA). But if a 1300 engine is converted to 1600 and the original 1300 heads were flycut to fit the 1600 cylinders, your compression ratio could be as high as about 8.4:1. Same thing with changning yuour 1500 pistons and cylinders for 1600 cersions and keeping the 1500 heads - you'll get a compressionr atio of about 8:1. Such changes require the use of a higher octane gasoline/petrol 8:1 need about 93 RON octane (89 AKI in the USA) and 8.5:1 compression ratio needs about 95 RON (91AKI in the USA).
Can a VW run on unleaded fuel?
The VW engine can run very happily on unleaded, in case you were wondering -- it doesn't NEED lead in the fuel. There's a lengthy article on this web site about fuels and VW engines if you are interested. The main difference between the AD (outside the USA) and AE (mostly USA) series engines was the compression ratio.
Does oil fill the gap between rings?
The oil won't do much with the actual gap in the rings, but it helps fill in the extra space behind the rings in the ring grooves, and seals the contact between the rings and the groove itself -- the bottom of the groove and bottom of the ring particularly as the piston moves up for the compression test. ~~~.
Is 120 psi good compression?
Rob responded, The compression tests tells a lot about the condition of the engine. 120-130 psi is fine, but 100 psi and below is not so good. Compression dropping to 100 psi means either rings, or valves have a problem. So you have to find our WHY those cylinders are down on pressure. If the poor cylinders were both on one side, I'd lay odds on a head problem, but with one on each side being low...read on.
Why is my VW valve compression so weak?
In most cases weak and/or uneven compression are caused by worn piston rings or bad valve seating. Of course improper valve adjustment could also be the culprit, but I am assuming the valves have already been checked and adjusted at this point (If not then see How To Adjust Air Cooled VW Valves ). In worst cases there could be a damaged piston, cracked cylinder (jug), cracked head, leak between head and cylinder, or a burnt or broken valve.
How much compression should a VW engine have?
It is desirable to have high compression and relative uniformity among the cylinders. Variations from cylinder to cylinder should be no more than 14 to 20 pounds depending upon your engine’s compression ratio.
What is compression test?
A compression test is a basic part of a routine tune up for an air cooled Volkswagen engine. With these instructions you can check the engine compression yourself. Compression is a measurement of the pressure that builds up within a cylinder as the piston rises and both valves are closed. For the fuel mixture to burn properly a certain range ...
How to read compression gauge?
Thread the compression gauge into each cylinder making sure that the pressure release button has been pushed and the reading is at 0. Crank the engine for about 2 seconds and write down the highest reading from the gauge. Here it is very helpful to have a friend who can sit in the driver’s seat and crank the engine when you yell. You may also use a remote starter to turn the engine.
When was the VW repair manual published?
First published in 1969 , this classic manual of automotive repair equips VW owners with the knowledge to handle every situation they will come across with any air-cooled Volkswagen built through 1978, including Bugs, Karmann Ghias, vans, and campers. Easy to understand and fun to read information.
What are the factors that affect compression?
The two main factors that affect compression are the condition of the piston rings and the valves. Obviously, the valves need to be fully closed on the compression stroke to avoid loss of pressure. Before you check the compression the engine needs to be at normal operating temperatures.