Engine technology was advancing, but the new overhead valve engines required more metal to produce, thus upping costs. Harley introduced its 45 cubic inch Flathead engine in 1929, followed by a 74 ...

Way back in 1929, the company began providing single cylinder side-valve engines for the Worthington Mower Company's Overgreen lawn mowers. These massive mowers were used commercially to cut ...

There are only a couple of important parts between the engine and the boiler. There’s an in-line oil reservoir to help combat the corrosive nature of the steam. There is also a check valve.

Even when an updated engine was introduced, it retained the bottom end of the Flathead, a testament to the quality of its ...

As we tried to crank over the engine by hand, we could hear and feel the valves impacting the pistons. This was getting worse by the hour. The next step was to remove the head. This would allow ...

General Motors' all-new 3.9L V6 has been honored with a Breakthrough Technology award by Popular Mechanics for its innovative use of variable valve timing in an overhead valve engine. For ages GM ...

Sunbeam introduced overhead-valve engines in the mid-1920s having established its not inconsiderable sporting credentials with sidevalve machines. Introduced in the autumn of 1930, the all-new ...

Fumes from the oil filler cap betray wear; remove the cap with the engine idling, and if the fumes are obvious a rebuild is due. • Overhead-valve engine: the overhead-valve 107E engine lasts ...

The main objective of the company is to manufacture of valves for internal combustion engines and ATE valves for Mercedes Benz. The valves are to be marketed under the trade name EVL. 1973 - The ...

At the start of the 1930s, Ariel’s product range featured a bewildering array of single-cylinder motorcycles, including side and overhead valve engines of 250, 350, 500 and 557cc capacities with ...

Continuously variable valve timing, which GM pioneered for overhead-valve engines, is refined to support the LT1 AFM and direct injection systems to further optimize performance, efficiency and ...

At the MotorTrend How-To section, you’ll learn how to perform the car improvements you want to do, thanks to DIY knowledge on how-to make an engine more powerful, improve a suspension ...