How it’s works? Pump system of Old cars carburetor. When the throttle is opened rapidly, the air flow and manifold vacuum change almost instantly. Because of the great difference in weight between air and fuel, any sudden change in throttle opening results in an immediate increase in air intake, but the fuel, having greater weight […]
The power system of Cars Carburetor of Old Cars -The power system consists of a spring-loaded piston, a vacuum passage to the intake manifold, a valve and a restriction between the valve and the main well. The power system of Cars Carburetor The piston determines when the valve opens and the restriction determines how […]
How Carburetors Works in Old Classic Cars Carburetor The automotive carburetor is an intricate device which must perform automatically over a wide range of engine operating conditions, such as varying engine speeds, load and operating temperature. Its major function is to meter, atomize and distribute an explosive mixture of fuel and air to each combustion […]
A combination pump is a fuel pump with a vacuum pump attached. The fuel pump portion acts the same as just described but has a vacuum unit attached. When power is applied to the rocker arm by the eccentric on the cam shaft, the arm movement pushes the vacuum diaphragm down, expelling the air from […]
The Fuel System of Classic, Vintage or Old School Cars Purpose of Fuel System The automotive fuel system has the job of supplying a correctly proportioned mixture of gasoline and air to the engine. This mixture must be varied to suit the requirements of the engine under all operating conditions. During starting, especially in […]
We have discussed at length, the means of delivering a high voltage surge to the spark plugs in order to produce a spark which can ignite the compressed fuel/air mixture. We’ve even talked about the spark, but not specifically about the spark plug. Previous Article about Automatic Spark Control Mechanism A spark plug’s purpose, as […]
This article is all about centrifugal advance mechanism and spark advance mechanism. Image Source When the engine is idling, the spark is timed to occur just before the piston reaches top dead center (TDC), so that the combustion can be completed by the time the piston reaches a point a little past TDC. At higher […]
Many late model cars- use a resistor or resistance wire connected in the primary circuit between the ignition switch and the coil primary. Resistor Before its function is described, we will discuss some conditions in the ignition system which affect its operation. At low RPM, the ignition points stay closed long enough […]
Article Source The cap which forms the top of the distributor is made of an insulating material. In addition to covering the top of the distributor, it is formed to serve as the terminals or connections for the high tension wiring. The centrally located terminal receives the high voltage from the coil, while those […]
This article is all about “7 Things you should know about Ignition Coils”. It’s contained Ignites the air/fuel mixture, Transforms the battery voltage, spark plug, controls and more things to improve your mechanical knowledge. Image Source 1 To change the 6 or 12 volts of the car battery to a voltage high enough […]