The camshaft In the intricate world of automotive engineering, the camshaft plays a pivotal role in the functionality and efficiency of an engine. The question of "What does a camshaft do?" reveals the complexity and innovation behind internal combustion engines. This component is essential for ...
This allows more air to be packed into the cylinders, especially at high speeds (see How Camshafts Work for more details). The intake and exhaust are tuned and tested to provide a boost at certain engine speeds. They are also designed to have very low restriction -- that is, to provide...
It might not seem like much, but your camshaft is one of themost critical aspectsof your engine. If you’re looking for serious performance upgrades, a camshaft upgrade and a tune are a surefire way to get there. How Does a Cam Work? Just like the crankshaft, the camshaft is a relativ...
Older engines used a camshaft located in the sump near the crankshaft. A timing belt or timing chain links the crankshaft to the camshaft so that the valves are in sync with the pistons. The camshaft is geared to turn at one-half the rate of the crankshaft. Many high-performance engines ...
After this test, the engine is inspected thoroughly. The valve train is pulled and the camshaft and valve lifters are inspected. The insides of the cylinders are examined for abnormal wear. The cylinders are pressurized and the rate of leakdown is measured to see how well the pistons and se...
Other HowStuffWorks articles explain the mechanics of the engine and many of its subsystems, including the fuel system, cooling system, camshafts, turbochargers and gears. One could argue that the ignition system is where it all comes together with a perfectly timed spark. In this article, we'...
In anover-head cam (OHC)engine, the predominant type of engine in use today, the camshaft is found in the head, whereas for anover-head valve (OHV)layout the camshaft is in the block. Inline engines have just one cylinder head, while flat, V and W engines will have multiple cylinder...
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The acronym OHC means Over Head Cam, while SOHC means Single Over Head Cam or Single Cam. In a SOHC engine the camshaft is installed in the cylinder head, and valves are operated either by the rocker arms or directly through the lifters. ...
It's easy to change camshafts in an LS engine...in fact, in the "How To Build A High-Horsepower LS Engine" recipe book, it's pretty much required. Here's what it takes to complete the task so that you get the benefits of a different camshaft...and that n