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1984 fm215 truck brake fluid hose configuration

Does the middle hose from brake fluid resevoir go to top or bottom of master cylinder?

Posted by Anonymous on

  • CHA55Y
    CHA55Y Dec 25, 2013

    on the spout closest to the push rod, it feeds the cylinder more fluid when the piston / pushrod is all the way out, when pushed in {by you brake pedal} it seals off the supply and builds pressure, actuating your brakes at the other end, meaning the wheels :7)



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SOURCE: 2003 toyota corolla low brake fluid

The fluid level will drop when the brake pads and or shoes wear thinner. A good way to check for a hydraulic fluid leak is Shut engine off step down on the brake pedal and hold it for 3 minutes. The pedal should not slowly drop. It will go down and hold.

Posted on Feb 28, 2009

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SOURCE: master cylinder brake bleed question

you should first bench blead a new master cyl before installing it on the car.

Posted on Jun 16, 2009

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SOURCE: 1984 G.M.C. 7000(5ton?)truck- brake fluid sqirting

yes there is a gasket

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SOURCE: 2004 BMW ci with 58K miles Car leaks reddish

oh dear, this is going to be very bad new for you,take it from me the ATM fluid is leaking out of your gearbox, it could be a rear gearbox oil seal, it could be the front gear box oil seal leaking, even the oil cooler or pipes leaking but it is leaking some were, and if its got to be took out to put in a new seal your going to need to sell a kidney or some outher part of you to pay for it, if you can put up with the leak just keep filling up your ATF fluid dont let the gearbox run dry or its realy going to cost you, as it will seize up on you and burn its self out, thats a new gear box then??? costly very costly! if its only a little bit of oil leaking give the motor a good wash down with a power hose under it and fill the atf up go for a drive say 10 miles then look under it, look for fresh oil (ie:red oil) around the gearbox at both ends of it, if you see any that is proof its leaking bad!!! park it over a sheet of paper over night will show how much it leaks too, i would put up with it as long as pos bet if its due for an MOT give it a realy good power wash down first to get rid of any oil, a little leak will still pass, a big un, wont! any oil seal can just fail on you like this one has but they fail much faster if they get over heated due to lack of oil in them
sorry for the bad news, think of selling the kids to pay for a new gearbox,, now there's an idear?

Posted on Oct 22, 2009

  • 83 Answers

SOURCE: can anyone add brake fluid to the truck? is there

There is nothing special to adding brake fluid. With the hood open on the drivers side on the firewall you should see the master cylinder. The cover is either a small round cap that will just spin off or a rectangular one that will pull off. Use DOT 3 fluid and fill. Make sure no dirt falls in.

Posted on Oct 27, 2009

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1 Answer

Why does mybrake resevoir over flow when i depress the brake caliper

Hello Justin, Since you just replaced the brake pads, you had to push the caliper pistons into the bores. That pushed the brake fluid into the master cylinder and overfilled it. I suggest you obtain an inexpensive turkey baster. ( I got mine from the dollar store.) Use it to suck out as much brake fluid from the master cylinder as you can. DO NOT spill any brake fluid on you or the car finish. It WILL damage painted surfaces. Refill the master cylinder with new brake fluid of the proper DOT specs for your auto. I also suggest you bleed the old fluid out of the brake hoses and lines . Over time, brake fluid attracts moisture and turns a dark color. It is also good to bleed out any air that might be in your braking system.

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Sounds like you may have an air bubble in the master cylinder. The most effective way to deal with that is getting a master cylinder bleeder kit from your local parts store - make sure it has the metal clips that will hold the hoses in the master cylinder. Install line adapters after removing brake lines from the master. top up the fluid in the master and install hose clips, making sure the end of the hoses are in the brake fluid at least 1 inch. Slowly pump the brake pedal, making sure you bottom out the pedal and release SLOWLY so you don\'t suck air into the hoses - have a helper watch the fluid level in the master cylinder and the bubble production. The fluid level should not sink during this procedure - if it does, then you may have a faulty master cylinder. Pump until you have no more bubbles. If the bubbles don\'t stop, then you have a faulty master cylinder.

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The front/driver's side of my van is leaking brake fluid very fast.

sounds like a broken brake line or a brake master cylinder problem. the master cylinder has a resevoir ontop were you add brake fluid. Does your brake pedal feel spongy? if so sounds like your master cylinder needs to be replaced.

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The hose that goes to my resevoir cracked when the weather got really cold. I am almost certain air found its way into the system as the end result. All I need to know is where the bleeder is located on...

You have air in the clutch slave cylinder . As old as it is I suspect you now have a bad master cylinder.

Why? Because over-stroking the pedal when low on fluid tends to **** in all the dirt that accumulates in the bottom of the system and damages the hardened old seals.

The clutch slave cylinder is on top of the bell housing and it has a 7mm across it's flats, bleed nipple.

This is a two man job without a pressure bleeder. Have someone press clutch down and you open slave bleeder, close bleeder and lift up pedal slowly.

Repeat, topping of the fluid reservoir, until firm pedal.

The brake reservoir also supplies fluid to the clutch. If the fluid gets low or clutch leaks, the reservoir is so designed to still allow fluid for the brake system.

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Clutch pedal sinks to floor and won't take gears. when it does take gear it will shift fine after a few minutes but now won't take gears at all

possible bad slave cylinder on transmission, you do have a hydraulic clutch, have you checked the fluid in it? it might be your problem. hope i helped!!

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I am having an issue where the brake pedal goes all the way to the floor before it will work. From what I understand it may be the brake master cylinder malfunctioning. I am considering replacing it...

Check the vacuum booster first
Shut the car off after it idles for 3 minutes
Apply your foot on the brake and hold
If the pedal seems hard at first and did not go down all the way keep your foot on it for two more minutes
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If not start the car and let idle again
\With the car still idling step on the brake pedal again and hold
If the pedal goes to the floor in a second the master is shot instead

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2 Answers

Does the clutch use the same resevoir as the brake? My clutch pedal travels almost to the floor before the clutch releases. I'm hopeing it is just low on fluid but don't find the fluid resevoir.

Follow the clutch pedal to the master for the clutch,to the firewall,and locate the clutch master,if it does not have a reservoir,there will be a hose from the master,to the reservoir,just trace it down,it does not share the reservoir with the brake master cylinder.

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The master cylinder is directly underneath the fluid resevoir. The Resevoir mounts to the master cylinder. If you would like an image enter "2001 BMW 325 master cylinder" into a search engine, under the image option.

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The master cylinder is directly underneath the fluid resevoir. The Resevoir mounts to the master cylinder. brakes_e36_325i_318i_z3_brake_master_cylinder_34311163711_sm.jpg

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The master cylinder supplies the pressure to the brake fluid that travels between the maste brake cylinder resevoir and the brake caliper pistons (through the brake lines. If the master cylinder fails there will be insufficient compression of the brake fluid to make the calipers operate as designed. Leaks in the brake lines and/or cylinders is a possibility, and unrelated to functionality of the master cylinder. Also, pistons located in the brake calipers can form a corrosion ring on their inside walls if there is breakdown in the brake fluid or moisture that gets into the lines. Operating the vehicle when there is insufficient brake fluid in the master cylinder resevoir can also lead to air getting into the brake lines, causing bad working brakes. Air compresses more than brake fluid, and the master cylinder isn't designed to compress air in the brake lines. Sounds like a bad case of "lack of maintenance", as opposed to bad advice from the mechanics. That said, there's no excuse for bad installation. But, it's tough to improperly install a brake line since they are nothing more than hollow metal tubes. There should be no rubber connectors installed in the brake lines. When bleeding the brake lines one must remove all of the trapped air before you will see any fluid appear. If the valves in the master cylinder are not properly operating the master cylinder will not allow the brake fluid to get into the brake lines.

Hope this helps.

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