As the engine heats up, the spring inside the thermostat expands and pulls the valve open. Electric chokes use the vehicle's 12-volt power to control the thermostat. These can be integral or ...

Smaller valves are lighter, which means the engine can rev higher, create more power, and in general, look down upon the two-valve engines of the world with a sense of multi-valve satisfaction.

Engine valves are operated by the rotation of a camshaft that has eccentric, egg-shaped lobes on it. As those cam lobes rotate, the high part of their egg shape presses on the valve, moving it ...

As mentioned, the EGR valve in your diesel engine is an important component, both for your vehicle's performance and the environment. However, like many other auto parts, it's subject to wear and ...

Then try to start it with a cold engine -> valves won’t open. Report comment. Reply. denis says: December 18, 2020 at 12:41 am ...

At its most basic level, an engine is an air pump. Internal combustion engines breathe fresh air and expel wasted exhaust gases to make power. Something has to tell those intake and exhaust valves ...

Be sure to remove the valve from the engine when replacing the brass vacuum nipple with the small set screw to prevent anything from falling into the crankcase. See All 17 Photos.

Jeff Glucker December 18, 2018 Comment Now! The hunt for efficient engine valve technology can be a never-ending journey into cam timing, various combustion cycles, and lift and duration adjustments.

Ford will recall 90,736 vehicles as engine intake valves in the vehicles may break while driving, the National Highway Traffic Safety Administration (NHTSA) said on Saturday. The recall impacts ...

Imagine taking the Ducati desmodromic valve system and adding electronic control that provides brief bursts of two-stroke power! The result could be a motorcycle engine that delivers great low-down ...

General Motors sees a future for engines with overhead valves, a technology most automakers have abandoned in favor of overhead camshafts.GM will introduce a new family of overhead-valve (OHV) V ...