What is the purpose of a car PCV valve?

Answer All modern engines use some sort of crankcase evacuation system. The PCV (positive crankcase ventilation) valve is the device that allows internal pressure to escape, without allowing the oil to fo... Read More »

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What is the purpose of the hydrostatic valve and how do you release the pressure in it and does this valve need cleaning or other regular maintenance?

Answer A hydrostatic relief valve prevents your swimming pool from wanting to become a 'boat'. If the bottom of the pool is below the level of ground-water, and the pool is emptied, the pool would ... Read More »

What Is the Purpose of a Brake Proportioning Valve?

A vehicle's braking system is not just made up of the brake discs or drums that are attached to each wheel. Instead, there are several components within the engine compartment, such as the brake pr... Read More »

What Is the Purpose of the Damper on a Valve Spring?

An induction stroke refers to the first stroke, or the downward piston movement, that occurs in the internal combustion engine cycle. This stroke produces a vacuum that pulls the combustion mixture... Read More »

What Is the Purpose of Valve Cover Breathers?

Valve cover breathers are generally used with older engines and act as vents to release blowby-induced pressure in an engine's crankcase. Though modern engines take this venting one step further by... Read More »