What is the camshaft and how does it work? How does the camshaft function? What are the symptoms of camshaft failure? How to spot camshaft failure ?….
What is Camshaft?
Also known as the camshaft “camshaft”The engine’s primary function is to run efficiently. Camshafts are responsible for opening the intake and exhaust valves on time. The camshaft rotates using the drive gear from the crankshaft gear. The egg-shaped cams (lobes), allow the valves to open by pushing the valves (valves).
Overhead Camshaft / OHC The engines are separated into Single Overhead Camshaft / SOHC Double Overhead Camshaft / DOHC. These engines have the camshaft at the top of each cylinder head.
Four-cylinder SOHC engines only have one camshaft. Two camshafts are required for V6 and V8 SOHC engines. The camshaft mounts between the valve stems. Through the rocker’s arms, the shaft transmits its movement to the valves.
Four-cylinder DOHC engines, on the other hand, have two camshafts. One for the intake valves and one for exhaust valves. Four camshafts are used in V6 and V8 DOHC engines, with two per row. The shafts are typically mounted on the stems of the valves. The rotational force is then transmitted to the valves.
Overhead camshaft engines can have up to five valves per piston, but they have generally two intake and two exhaust.
Older overhead valve engines (Overhead Valve Motor / OHV, or Pushrod Engine There is a camshaft located inside the cylinder block, usually near the crankshaft. The camshaft movement is transmitted to the rocker arms by the pushrods. Once the valves have been opened, the valves can be opened. Two to three valves are found in a pushrod engine. Usually, one intake valve and one exhaust valve are used.
A typical camshaft’s shaft is made of spheroidal, graphite-cast Iron. Some camshafts can be made from high-grade carbon steel. They can be made as one piece using both the casting and forging methods.
How does the Camshaft Function?
Before we get into the details of how the camshaft works let’s look back at its history.
Since its invention, the camshaft has used the same logic.
Camshafts are usually connected to crankshafts using a timing belt or chain. Some OHV engines can also have timing gears. Camshaft gears have twice as many teeth than crankshaft gears, which allow them to rotate at half their speed. There are four strokes for the camshaft: compression, ignition, exhaust, and ignition.
Camshafts are a simple rod that has lobes spaced differently along the shaft. Rotating the post, the cam lobes contact (or directly touch) the valve with an aligning lever known as the “rocker” The valve will open when you press down on it. The valve will close when the rocker arm or valve passes the apex. Variable shaft rotation speed can also affect the timing of valve opening. It is crucial that each valve opens and closes correctly. It is important that the opening and closing of each valve be perfectly timed with the movement and piston movement. This ensures the best engine performance.
Recent innovations by Traficant have made engine years more efficient. Almost all automakers now have systems that allow them to change the engine timing. Some systems can adjust the height of the valve opening. (VVL) To improve engine performance and fuel economy. Other hydraulic actuators are used. (For instance, Variable Valve Timing/VVT). ) to adjust or delay the timing of valves based on crankshaft angle.
What are the symptoms of camshaft failure?
Camshafts are made of solid steel and are not susceptible to damage or wear. The camshaft is usually the last to wear on most engines. However, common camshaft problems can still occur.
- – The engine light should be on
- – Engine makes clicking noises
- – Metal residues in oil
- Engine misfire
- Misfires can lead to an increase in emissions.
- The valves may not open fully if the cam lobes become worn. This can lead to a decrease in engine performance.
- Wearing the cam lobes can cause the airflow to the combustion chamber to be reduced and the engine may misfire.
- Lifters that are worn can cause valves to not open fully and lead to engine performance issues.
- – Valves that make too much noise from defective lifters.
- The entire engine will be severely damaged if the camshaft breaks or jams due to manufacturing defects.
Incomplete or irregular maintenance of your engine can lead to all these problems. Regular oil changes and quality oil that meets the specifications of the engine manufacturer are essential to prevent overheating.
