i have a 1982 ford f150 power brake and i just replaced the booster and master cylinder how do i bleed brakes?

Answer 1

This is from my husband who knows allot about this stuff.
Auto Zone rents a master cylinder bleeder set, hopefully you have one of these around you ( Free of charge)
Or you fill the resivour (M.Cylinder) start with passenger rear tire have someone pump brakes 3 times and hold while you open the bleeder valve close valve and then repeat till no air comes from line. Make sure to keep fluid level full in m. cylinder.
next tire is drivers side rear repeat steps and then front passenger then driver side IF you have ABS brakes then to bleed the system the key needs to be in the on position BUT DO NOT START the TRUCK hope this works

Answer 2

The single best way to bleed your brakes (I'm assuming you do NOT have Anti-lock Brakes) is simply remove the cap on the reservoir (I usually place a shop towel over the top to keep stuff out it and set (don't click) the top on the towel to keep it in place), start with the wheel FARTHEST from the cylinder and crack open the bleeder valve (it will be right above the where the brake line enters either the brake cylinder (rear drums) or calipers (front disc). Allow the fluid to trickle out at a slow rate (if it is dripping quickly or running you've opened the valve too much and need to close it a little). Watch the fluid in the master cylinder, when it gets low (do not let it drain completely) close the valve, re-fill the master cylinder, then move on to the next farthest wheel and repeat. If memory serves, you should start at the passenger rear, then the driver's rear, then the passenger front and finally the drivers front wheel. After you have bled the last wheel, refill the reservoir and gently test drive your truck, the pedal will most likely fall to the floor when you first hit the brakes so it's a good idea to pump the pedal before you start the engine and have the vacuum booster apply pressure to the system.

If you do have ABS, have your truck towed (do not try to drive it) to a reputable repair facility. ABS systems sometimes require a constant pressure to be applied to the master cylinder in order to be properly bled.

Also, if you did not bench bleed your master cylinder before you installed it, take it back off the truck and do so, or else all your bleeding will be in vain.

Answer 3

first you got to bleed the master cylinder well you should have the two clear tubes that came with master cylinder,mount it to the truck put the tubing to the two ports of the cylinder fill with brake fluid the tubing should run to the cylinder where the brake fluid is have someone press the brakes SLOWLY VERY SLOW because at the same time you will be holding the tubing keep pressing pedal till you dont see no bubbles Then after that connect brake lines back then you start at the tire right rear then left rear then right front then left front these is what you do fill the cylinder with brake fluid put lid back on then have someone pump the brakes like 10 times and hold the pedal on the 10th pump and open the bleeder with out letting the pedal off there will be pressure so be careful repeat on each wheel do rear then check the fluid level then do the front hope these helps you

Answer 4

Did you bench blead the master cylider prior to hooking up your brake lines? If not you will have to bench blead the master cylinder while its on the truck. To do this take off all lines going to the master cylinder, get someone in the truck to mash the brake pedal for you. DO NOT PUMP, pumping is so overrated, pumping is what a good backyard mechanic does. There is an easyier way to blead the master cylinder and brake lines. Now you can either get the master cylinder bleading lines, or you can just put your fingers over the holes where your brake lines go. Keeping your fingers out of the line holes, tell the person pushing the brake pedal for you to PUSH IT DOWN AND HOLD IT. When he or she says "its down" NOW you will want to place your fingers firmly into the holes where the brake lines bolt in, not allowing any air to enter through finger tips as the brake pedal is being released. As you are doing this keep the lid off your master cylinder so you can see when the bubbles stop. Keep in mind not to push the brake pedal down to fast becaues the brake fluid will splash up. This will take about 5 or 6 times to get ride of the bubbles in the master cylinder. Once all the bubles in the mastcylinder are gone, tighten your brake lines to the master cylinder. Now you will need to blead the rest of the system. Like I said Pumping is so overrated, You can pump if you like, most people do i find it a waste of time. Anyway, now that your brake lines are connected to the master cylinder fill with brake fluid, and lets get going on bleading the rest of the system. Go to the fatherest tire from the master cylinder, normaly the right rear tire. Find the wrench you will need for the bleader screw, go ahead and lossen it, and then tighten it back up. Now tell your brake pedal friend to "PUSH AND HOLD IT" when he says "OK" lossen the bleader screw and wait for him or her to tell you that the "pedal is to the floor". Once its to the floor tell him or her to "hold it down", then tighten the bleader screw. Repeat this untill all the bubbles and air are no longer present, you will know when this happens. Do all four tires this way and it should be good, keep in mind to start at the fartherest tire and work your way up to the nearest tire to the master cylinder. In short, you will not want anything OPEN on the brake system when the brake pedal is released and comeing up. The lid to the master cylinder will be fine to leave off while bleading. After bleading EACH of the tires make sure that you top off your master cylinder with the appropriate fluid.

Answer 5

It nis maximum in all probability the draw close cylinder or the rear drum cylinder..if it grow to be the brake booster you would adventure an unusual/troublesome idle because the vacuum port is rapidly hooked to the intake manifold to boot. look on the in the again 2 tires and be conscious in case you spot a puddle of brake fluid, if so you want to fix the rear cylinder, if no longer, it may well be the draw close cylinder or the strains.

Answer 6

F100 Brake Booster

Answer 7

their 2 way of doing this, one have someone pump the brake up while you looseing the bleeder on the cil,ore if you by your self, looseing the bleeder up an let it run ferr for a few min, then make sure you keep fluild in the master cil as it run off,,,tighting bleeded an refill the cil a gain