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the master cylinder is designed so that when the brakes are applied, the pistons (primary and secondary) closes the compensating port and opens intake port. this allows brake pressure to be formed in brake system to apply brakes and allows brake fluid to fill behind pistons (through intake ports)
when you release the brakes, the primary and secondary piston springs push their pistons (inside the master cylinder) to its rest position, faster than fluid can fill the chambers. this causes the brake fluid to flow past the piston cups (this happens when the rubber cup flexes foward)
as the pistons pass the compensating port, brake fluid is allowed to return to the master cylinder reservoir. the intake and compensating ports act as a breather for the master cylinder. hope this answers your queston :)
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∙ 12y ago
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What is the function of a master cylinder compensating port?
Type your answer here... Correct Answer: Allow for the normal expansion and contraction of brake fluid due to temperature changes
What is the function the master cylinder compensating port?
its either,AActivate the secondary piston if primary pressure is lostB.Equalize pressure between the primary and secondary circuitsC.Allow for the normal expansion and contraction of brake fluid due to temperature changesD.Assist in the rapid return of the brake pedal when it is released
What if the compensation port is left out of a brake master cylinder?
pray!
What is a fast fill valve in a master cylinder?
A fast-fill valve in a master cylinder acts as the inlet port and the compensating port. fitted between the reservoir and the cylinder bore. It is a combination valve with a ball and a pressure seal. Depending on the pressure, it allows flid to flow from the large bore of the cylinder to the reservoir, or from the reservoir into the large bore.
What is the function of a master cylinder bypass port?
Assist in the rapid return of the brake pedal when it is released
On a 93 ford tempo master brake cylinder are the front brakes controlled by the lines on the bottem of the master brake cylinder or the sides?
. If you have the 4-port master cylinder, the bottom ports go to the rear brakes & the upper side ports go to the front brakes.
How do you change a brake cylinder on a 1999 Galant?
Drain the brake fluid from the brake master cylinder reservoir. Remove the wiring harness from the brake cylinder. Remove the brake lines. Remove the brake cylinder retaining nuts. Reverse the process to install the new master brake cylinder.
What causes both rear brakes to hang up?
brake switch out of adjustment, master cylinder comp port plugged, rear brake hose collaspsed or ebrake cables seized
What cylinder goes on a 1989 cutlass sierra?
What cylinder? Master (brake) cylinder? Rear Brake cylinder? Lock cylinder?
How do you replace the brake cylinder on a 1996 Ford Ranger?
Master cylinder or drum brake (hydraulic slave) wheel cylinder or disc brake caliper cylinder? drum brake shoes rear
Where is ac low pressure port on 2002 Nissan Frontier?
The low side charging port is located high up, near the firewall, on the driver's side, right by the brake master cylinder.
How do you know when you need a new master brake cylinder?
A brake master cylinder? If you are losing brakes or brake fluid.
