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Automotive dictionary (encyklopedia)

Dictionary of terms and abbreviations for cars (automobiles), motorcycles (bikes),
bicycles, boats, engines, machines, machining and car fixing.

# A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Overhead camshaft

(OHC) The camshaft that activates the valves is mounted above the head and driven by a long timing chain or cam chain. In contrast, a pushrod engine has the camshaft below the cylinders so that thin rods (pushrods) are moved by the camshaft and activate the valves. An engine with an overhead cam means that the distance between the cam and the valves is much shorter, so the valves respond quicker and valve adjustment can be more accurate. Also this system allows for higher engine speed because of fewer moving valvetrain parts. A system with only one cam is called "Single Overhead Cam" (SOHC). In some instances there are two camshafts above the heads (one for the intake valves and the other for the exhaust) and called "double overhead cam" (DOHC). See single overhead camshaft, twin overhead camshaft
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Where Does Your Auto Insurance Dollar Go?

You pay your auto insurance. You have the right amount of coverage. So where does all that money go?

The exact cost you will have to pay for your insurance depends on several factors. One factor is what car you drive.

For example, the Porsche 911 tops the list as the most expensive car to insure. A person could pay $2,943.78 a year . . . and that’s with a clean driving record. The Dodge Caliber is the least expensive car to insure.

Another factor that affects your insurance is where you live. Washington DC has the most expensive insurance cost–$1,140 a year. North Dakota, on the other hand, is home of the least expensive insurance, at a cost of $512 a year.

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