Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
Trending News
brake drum bleed?
how come I unloosen the screw almost all the way out, but the fluid still doesn't wanna come out, i have a vacum pump. i refill brake resuvior when its low
7 Answers
- pappyLv 51 decade agoFavorite Answer
The bleeder may clogged with rust or corrosion.
You can buy new bleeder nipples, take the old ones all the way off and soak them to clean the out or, as you should do anyway when doing a brake jod on drum brakes, replace the cylinder assy. Corrosion gets in the entire thing and the seals will fail. It's cheap insurance to do the job complete.
- 5 years ago
Drum Brakes hugh? Is this a car or a truck? Let's go first of all what does the fluid look like in the master cylinder? Is it Black, Brown or clear? Any thing less than clear gets (contaminated with water and dissolving rubber parts in the brake system. if this vehicle has been sitting More than 5 years the plan on going through the whole SYSTEM. the brake systems of the early 60;s and 70's some times used both front and rear self adjusting brakes and the people who worked on them did not understand their principles so the adjuster parts got tossed. Look out for rusted lines and deteriorating rubber brake hoses. if you do find any of the above look for pitting in the master and wheel cylinders when you are ready to reassemble the system go for D.O.T. 5 brake fluid it does not absorb moisture from the air like D.O.T. 3&4 fluids do. Yes the bleeding is the same as the generic car or truck. Flush then R.R.-L.R.-R.F.-L.F. Except Euros and asian vehicles they could be different just remember "longest run first" and don't forget the combination valve (Don't let it pop out when bleeding) if equipped The drums as I recall most of those where just sliders (Just slide on and off) Some DID have a small index locater tab that fit into a hole in the axle flange, and some had a countersink screw or two holding it to the flange. First of all get a spray can of WD40 or ZEP 45 penetrating oil and use it freely. Good Luck Albert D
- 1 decade ago
If you press on the pedal and it has firm pressure and nothing comes out the bleeder, then you might want to check the brake hose. If they are really old then the inside of the hose has collapsed and it may be blocking the fluid from moving in or out.
Source(s): Import auto part sales www.easternimports.com - Anonymous1 decade ago
Is this a trick question, fluid doesn't come out but you refill brake "resuvior" when its low, try fixing the leak.
- How do you think about the answers? You can sign in to vote the answer.
- andyLv 51 decade ago
your bleeder valve is plugged take it all the way out and pus a small piece of wire through it and it should be ok if you can't get the wire through it get a new one there cheap good luck
- tony sLv 41 decade ago
Check the proportioning valve it has shifted to primary brake side. this is a dual braking system.
- LabLv 71 decade ago
Can we PLEASE have Year,Make,Model and if possible engine seize? I still think you have an AIR pocket somewhere in the system. Bleed all corners one-by-one starting from the back.