But just a small amount of MC or slave diameter chance equates to considerable volume change and pressure under fixed leverage. If you do the math to find how much volume (usually CCs) a MC can provide at it's length of stroke and do the same for the slave you can determine a match. So an idea set up seems to be a small MC and large slave.except that the MC will run out of volume (the lever provides the same short amount of stroke in all cases) if feeding a slave that needs a lot of volume. A larger slave takes lower pressure but provides higher output. At the other end of the hydraulic line, a small slave cylinder (or piston) needs less volume but provides less output. A larger diameter MC will produce a lower pressure but higher volume. Under the same leverage (hand lever) a small diameter master cylinder will produce high pressure but low volume. All brake line connections that were removed during the master cylinder replacement are inspected for any leakage and the vehicle is road tested to ensure normal operation of the brakes.Hydraulics is a function of volume and pressure.If your vehicle is equipped with anti-lock brakes, the mechanic may use a bidirectional scan tool during brake bleeding to actuate the ABS pump, thus ensuring that all air is removed from the complex valving in the ABS system. Whenever a new master cylinder is installed, brakes lines to wheel positions must be bled to remove air, old fluid and contaminants.The electrical plug for the fluid level sensor is reconnected. Then the new master cylinder is bolted to the brake booster and the brake lines are reattached.

The new master cylinder must be bench-bled to expel air from internal passages that contain the piston.Once all steel brake lines are disconnected from the master cylinder, the master cylinder is unbolted from the brake booster and removed from the vehicle.There is usually an electrical plug connecting to a brake fluid level sensor on the master cylinder reservoir and that plug must be disconnected. On vehicles with power brakes, the master cylinder is bolted to the metal housing of the power brake booster.How do mechanics replace the brake master cylinder? If the brake system warning light illuminates, there are several potential causes but failure of the master cylinder is in the list of causes that would have to be investigated. Discoloration of brake fluid can also occur due to moisture and particulate contaminants in the fluid. Fits: FL 1973-1981 FX 1973-1981 UOM: 1 KIT Country of Origin: Imported Add to cart Front Dual Disc Caliper and 10 Disc Kit Chrome 475.05 more product details VT No: 23-0250 Kit includes 2 chrome calipers with brake pads and 2 zinc steel drilled discs. No brake fluids, other than those specified for the year, make, and model, are fully compatible with a car’s internal rubber seals in the master cylinder. In all cases, you will experience reduced braking abilities. Internal leaks will typically be accompanied by a low pedal, a spongy brake pedal, or a pedal that slowly sinks as you maintain pressure. Faulty internal seals on the piston can cause internal leaks and also seepage of brake fluid into the power assist brake booster. Low, slowly falling, or spongy brake pedal.There should be no fluid visible on the external surfaces of any portion of the master cylinder or the plastic fluid reservoir.

Pm chopper master cylinder set