How do you calculate master cylinder force?
First, the equation for calculating the surface area of a circle (caliper or master cylinder piston) is p(3.14) x radius2. Second, pressure is equal to the force divide by the area or pounds per square inch. The rest of the math is just multiplication, division and addition/subtraction.
What does a larger master cylinder do?
While a larger master cylinder creates a larger displacement, it takes more force to create the same pressure as a smaller bore. While a larger master cylinder will take up system slack with less pedal stroke, it will take more force to create the same system pressure.
What is the bore size on a master cylinder?
The most important factor in how your brakes function is the bore size of the master cylinder. This will directly affect how your system feels and all manufactures offer a variety of choices. The most common sizes are 3/4-inch, 7/8-inch, 1-inch and 1-1/8-inch, although other sizes are often offered.
What are the different types of master cylinders?
On the basis of its construction and application brake master cylinders are of 2 types that are- 1. SINGLE CIRCUIT MASTER CYLINDER The brake pedal lever pushes the plunger (piston) inside the cylinder, which shoves fluid through the lines and into the slave cylinders.
When do you need to test a brake master cylinder?
Symptoms such as a sinking or spongy brake pedal or dragging or pulling brakes could indicate an internal leak, though. In some cases, the brake warning light, check engine light or a warning message might require you to test the brake master cylinder. How Do You Test a Brake Master Cylinder?
What is a tandem master cylinder M C?
TANDEM MASTER CYLINDER OR DUAL CIRCUIT MASTER CYLINDER It is the modified type of m c in which dual cylinder-dual piston or single cylinder dual piston along with dual circuit is used for independent braking between front and rear wheels.
How does the brake pedal work on a master cylinder?
The brake pedal lever pushes the plunger (piston) inside the cylinder, which shoves fluid through the lines and into the slave cylinders. When the brake pedal is released, a spring inside of the cylinder pushes the plunger back to its original position.
What happens when you change master cylinder size?
In EVERY and All CASES, changing to a SMALLER master cylinder bore size will INCREASE LINE PRESSURE at the expense of LONGER PEDAL TRAVEL. The opposite is also true, a LARGER master cylinder bore size will give a FIRMER pedal at the expense of LOWER LINE PRESSURE. Higher line pressure = higher clamping force.
How to calculate the bore area of a master cylinder?
By calculating the area in inches squared (bore x bore x .785”) for any master cylinder size, you can calculate how much pressure change would be affected by a bore size change. A 7/8” bore master cylinder has a bore area of .6” inches squared.
What is the PSI of a 7 / 8 ” master cylinder?
A 7/8” bore master cylinder has a bore area of .6” inches squared. If we apply that same 100 pounds of force to the 7/8” master cylinder, using the formula 100 divided by .6, that same 100 pounds of force from the pedal will generate 166.7 PSI. A decrease in master cylinder bore area produced a proportionate increase in line pressure.
When does a brake master cylinder come on?
But if the braking system sensors detect the brake fluid pressure is dropping, it will likely be due to a bad brake master cylinder. This will result in the warning light coming on.