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bleedind brakes
http://www.woodsbuggy.com/phpBB3/viewtopic.php?f=2&t=17249		 Page 1 of 2
Author:  holeman [ Wed Aug 06, 2014 6:47 pm ]
Post subject:  bleedind brakes
need help just replaced disk brakes on my new buggys.it has cnc pedals and cutting brakes.i need to know how to bleed the brake system.need input.
Author:  MickeyMouse [ Wed Aug 06, 2014 10:52 pm ]
Post subject:  Re: bleedind brakes
Is the question, how to bleed brakes? or how to bleed brakes with a cutter?
Author:  bige70chevy [ Thu Aug 07, 2014 12:31 am ]
Post subject:  Re: bleedind brakes
jack the front end up as high as you can...remove resevoir cap and top off fluid set cap on loose.
pump up pedal and hold it, then hold cutter and crack bleeder for that side
release cutter, then release footbreak...repeat for opposite side. probrably have to do it several times...drive it a little and repeat. dont let fluid get too low while bleeding.if your doing it alone use 2 stiff bungie cords, one for pedal and one for cutter. not trying to sound like im explaing it to a shortbus kid, just trying to help you explain the way ive had best results and not knowing your mechanical experience or knowledge...
Author:  holeman [ Thu Aug 07, 2014 8:00 am ]
Post subject:  Re: bleedind brakes
thanks big chevy thats what i needed to know
Author:  frankenbuggy06 [ Thu Aug 07, 2014 8:39 am ]
Post subject:  Re: bleedind brakes
You should never have to touch your cutters to bleed. If your cut brake is not mounted on floor you need to bring it horizontally. And if your calipers are on top they,may need brought to the back

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Author:  bige70chevy [ Thu Aug 07, 2014 9:03 am ]
Post subject:  Re: bleedind brakes
frankenbuggy06 wrote:
You should never have to touch your cutters to bleed. If your cut brake is not mounted on floor you need to bring it horizontally. And if your calipers are on top they,may need brought to the back

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i disagree on not having to touch cutters....
Author:  frankenbuggy06 [ Thu Aug 07, 2014 9:07 am ]
Post subject:  Re: bleedind brakes
Me nor my group have ever touch cutters while bleeding. You sjouldnt have to. The petals will push the air out

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Author:  holeman [ Thu Aug 07, 2014 9:30 am ]
Post subject:  Re: bleedind brakes
the cutter is mounted vertical its dual handle and the calibers cant be moved to the back brackets are welded in place.
Author:  frankenbuggy06 [ Thu Aug 07, 2014 9:56 am ]
Post subject:  Re: bleedind brakes
You need to get turns horizontal. And just take the brakes put them on the back so when you're sitting there bleed them you just hold him on the rotor

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Author:  holeman [ Thu Aug 07, 2014 10:15 am ]
Post subject:  Re: bleedind brakes
i will try that franken
Author:  frankenbuggy06 [ Thu Aug 07, 2014 10:51 am ]
Post subject:  Re: bleedind brakes
The big thing is you gotta make sure sure your bleeders on top if its not on top you always have air in the system just as if you don't turn your turn breaks up you always have air in the system top of those cylinders. Best if the brake lines are higher than the front "top of the cylinders"

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Author:  holeman [ Thu Aug 07, 2014 2:11 pm ]
Post subject:  Re: bleedind brakes
i think i need to rebuild or just get me a new master cylinder.i get some pedal and then its gone until you pump it up about 50 times.
Author:  Rick [ Thu Aug 07, 2014 4:19 pm ]
Post subject:  Re: bleedind brakes
Here is method that works
1. Fill reservoir 3/4 full.
2. Depress foot brake and hold.
3. Crack bleeder screw on brake furthest from master cylinder.
4. While still holding foot brake down, stroke steering brake through all the way and hold.
5. Tighten bleeder screw, release steering brake, (some suggest keeping handle pulled), release foot brake.
6. Repeat until you get a steady stream of fluid, no air, while maintaining fluid level in m/c.
7. Follow same procedure for other side.

Here is the actual cnc instructions
IF PRESSURE-BLEEDING IS NOT POSSIBLE FOLLOW DIRECTIONS BELOW:
A. Fill master cylinder reservoir with clean brake fluid.
B. Push brake pedal down.
C. Open bleeder screw on right wheel cylinder or caliper.
D. Actuate cutting brake handle connected to right wheel. Hold.
E. Close bleeder screw on right wheel cylinder or caliper.
F. Release brake pedal.
G. Release cutting brake handle.
H. Repeat procedures for left brake.
I. Repeat process until all air is out of system.


I've never heard of not cycling the cutter brake when bleeding...
Author:  holeman [ Thu Aug 07, 2014 4:57 pm ]
Post subject:  Re: bleedind brakes
ok rick ill try your method thanks.
Author:  hpfreak [ Thu Aug 07, 2014 11:33 pm ]
Post subject:  Re: bleedind brakes
Rick wrote:
Here is method that works
1. Fill reservoir 3/4 full.
2. Depress foot brake and hold.
3. Crack bleeder screw on brake furthest from master cylinder.
4. While still holding foot brake down, stroke steering brake through all the way and hold.
5. Tighten bleeder screw, release steering brake, (some suggest keeping handle pulled), release foot brake.
6. Repeat until you get a steady stream of fluid, no air, while maintaining fluid level in m/c.
7. Follow same procedure for other side.

Here is the actual cnc instructions
IF PRESSURE-BLEEDING IS NOT POSSIBLE FOLLOW DIRECTIONS BELOW:
A. Fill master cylinder reservoir with clean brake fluid.
B. Push brake pedal down.
C. Open bleeder screw on right wheel cylinder or caliper.
D. Actuate cutting brake handle connected to right wheel. Hold.
E. Close bleeder screw on right wheel cylinder or caliper.
F. Release brake pedal.
G. Release cutting brake handle.
H. Repeat procedures for left brake.
I. Repeat process until all air is out of system.


I've never heard of not cycling the cutter brake when bleeding...


x2 except wilwood master cylinders they are small fill them before releasing everything
Author:  hpfreak [ Thu Aug 07, 2014 11:35 pm ]
Post subject:  Re: bleedind brakes
and if you have drums in front the adjustment is critical to a good pedal
Author:  holeman [ Fri Aug 08, 2014 8:25 am ]
Post subject:  Re: bleedind brakes
no brakes up front.i still cant get a pedal i just gonna get me a new master cylinder.anyone in bham sell cnc brakes?.this buggy has not been driven in a few years that could be the problem.
Author:  holeman [ Thu Aug 21, 2014 3:50 pm ]
Post subject:  Re: bleedind brakes
got brakes to working i did away with turning brakes.do you guys think a rediusal valve is needed.i know its not spelled right but anyway had a brain freeze.
Author:  frankenbuggy06 [ Thu Aug 21, 2014 4:13 pm ]
Post subject:  Re: bleedind brakes
It's not required but if you do any type of hill climbing you're going to want those turn breaks back on there

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Author:  riverar321 [ Fri Aug 22, 2014 12:25 pm ]
Post subject:  Re: bleedind brakes
Frankenbuggy06 is correct, at least from my experience and knowledge. You Must make sure your bleeder screws are at the highest point on the caliper while bleeding. If not, you will never get the air out because it can not get to the screw. Air rises to the top, this is the key. Look at any production vehicle caliper mounting, the bleeders are at the top.

Second I have found that the steering brakes will trap air if not horizontal or the outlet lines pointing up. If the outlet lines are lower than the inlet line while bleeding you will not get the air out.

I used to fight with bleeding brakes soooooo much to no end until I did these two things.
Author:  frankenbuggy06 [ Fri Aug 22, 2014 12:49 pm ]
Post subject:  Re: bleedind brakes
I actually have my turn brake mounted on a downhill angle so that the lines are almost the highest point of that system. Next to the master cylinder that is.

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Author:  riverar321 [ Fri Aug 22, 2014 1:05 pm ]
Post subject:  Re: bleedind brakes
I know a lot of people touch the cutter brakes when bleeding but if you either mount or move the cutters and calipers so that the outlets (lines to calipers for the cutter and bleeder valves for the calipers) are the high point, you can bleed the system like any production vehicle on the road.

I don't have to touch my steering brake either. Only pump and bleed.
Author:  holeman [ Fri Aug 22, 2014 9:21 pm ]
Post subject:  Re: bleedind brakes
i am going to rebuild the cutters if i can find a kit then try them again.i dont think i need them do mainly trail riding and watch the crazy friends climb the hills.
Author:  jrvb [ Fri Aug 22, 2014 10:14 pm ]
Post subject:  Re: bleedind brakes
everyone has been giving you the same info i would give you, but i will add a few things as well.
my cutters are mount vertical and i had to install a residual valve, and i also had to depress cutters while bleeding brakes. also if you use a small hose that will fit over the bleeder, and have that run into bottle with some brake fluid already in it. this way it will keep from sucking air back into the line from your bleeders. also it will keep you work area free of brake fluid. for some reason these things can be a pain in the arse , but you will eventually get it.
good luck!!

:D
Author:  frankenbuggy06 [ Fri Aug 22, 2014 10:41 pm ]
Post subject:  Re: bleedind brakes
Ill be honest, never had luck with rebuilding. Have you tried a "power bleeder?"

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