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Tech Talk with Master Power Brakes

How To: Diagnose and Fix Brake Drag

Posted by toby on Jun 5, 2017 4:20:00 PM

Whether you’re installing new brakes on your classic car or working on an existing system, brake drag can be a frustrating and challenging thing to diagnose and locate. On a positive note, the problem is usually a pretty simple repair once you find the culprit.

What Is Brake Drag?

Brake drag happens when the brake pads or shoes don’t release completely when the brake pedal is released, and is typically a result of mechanical issues or hydraulics. It is highly recommended to fix the dragging brakes as soon as possible, because it can lead to overheated parts and potential damage to the braking system, or worse yet, an accident.  

Referring to the checklists below will help you identify and repair your brake system’s brake drag woes so you can get back out on the road.


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Topics: brag drag, brake hose, classic cars, how to, How To Series, hyfraulic brake drag, master cylinder, mechanical brake drag, metering valve, repair

Combination Valves

Posted by toby on May 22, 2015 8:33:48 AM

A Combination Valve, sometimes called a Proportioning Valve, is just what the name implies…a valve that does a combination of things. The valves used on front disc/rear drum systems and front and rear disc brake systems include a Proportioning Valve and a Brake Pressure Differential Switch while the disc/drum valves also contain a Metering Valve. If you have ever wondered what all of this stuff does, we have just the video for you....

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Topics: classic cars, drum brakes, Proportioning Valve, Vintage Cars, combination valve, Disc Brakes, metering valve, Videos

Four Things to Know About Brake Valves

Posted by rick on Nov 12, 2012 10:37:13 AM

There are many different valves used in the conversion from drum brakes to disc brakes and in brake systems in general. Have you ever wondered about the various types of valves that make up your brake system and what they do? This post offers a description of what some of those valves are and how they relate to your vehicle and situation.

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Topics: adjustable, brake valve, How To Series, Proportioning Valve, residual valve, combination valve, metering valve

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