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burnt clutch Samba Member
Joined: January 28, 2005 Posts: 193
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Posted: Mon Jun 18, 2007 7:07 pm Post subject: Easy Splitty brake bleeding |
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Is there a easy 1 person way to get the air of of the brakes on a Splitty? I'm replacing a dead Brazillian M.C. with a new German one, and was wondering if I jacked the front end up, if I could work out the air bubbles just by pumping the brakes? What methods do you all use for getting the air purged out of your brakes?
-Karl |
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CarlSpackler Samba Member
Joined: December 12, 2005 Posts: 666 Location: Mason, Ohio
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Posted: Mon Jun 18, 2007 7:53 pm Post subject: |
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The suggestions I got from here for this was to either: a) using an old MC cap, connect an air inlet to the cap, then connect compressed air from a source where you can set it to 10 or so psi. Just enough to push the brake fluid through the lines, then bleed each brake. Or b) remove the MC cap, cut a bike intertube, attach the tube to the top of the MC, fill it with air, and bleed the brakes. I used option b, and though it wasn't fast, it worked. Just make sure you don't run the MC dry or you'll be starting all over again. _________________ '67 Micro Bus
'73 Thing
'91 Westy |
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arthurnugen Samba Member

Joined: January 11, 2005 Posts: 3082 Location: The PNW, where "going green" means rolling with moss.
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Posted: Mon Jun 18, 2007 7:56 pm Post subject: |
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Haven't tried it yet, but I remember someone on her mentioned using a plastic syringe at the bleeder valve and pushing fluid back to the reservoir. Sounds like a cool idea.  _________________
| cdennisg wrote: |
| Lawyers don't deserve buses. |
| zozo wrote: |
| Don't worry too much. You can always trust a lawyer. |
ALWAYS WEAR STEEL-TOE BOOTS IN THE GARAGE!
1965 Bus (Riviera camper)
1972 Bug 'vert
1967 Bug sunroof
1961 Ghia 'vert
1957 DKW 3=6: 3 cylinder 2 stroke! |
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LittleThunder Samba Member
Joined: May 21, 2006 Posts: 1015
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Posted: Mon Jun 18, 2007 8:42 pm Post subject: |
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| arthurnugen wrote: |
Haven't tried it yet, but I remember someone on her mentioned using a plastic syringe at the bleeder valve and pushing fluid back to the reservoir. Sounds like a cool idea.  |
Yeah that was me. I did it once in France with a friend but haven't been able to find a large enough plastic syringe here. Just to review, you fill the syringe with fluid, short hose to the bleeder valve, open the valve and push the fluid in. You'll be pushing fluid through the system the opposite direction, a better way I think cause the air naturally wants to rise in the system. You have to use the syringe first to draw the fluid out of the MC res. otherwise it will overflow. It worked like a charm the one time I tried it. |
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diy570 Samba Member

Joined: September 19, 2003 Posts: 1062 Location: Maggie Valley, NC
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Posted: Mon Jun 18, 2007 8:53 pm Post subject: |
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it's faster with two people, but you can just do it the old way by yourself. fill the res, pump the pedal 30 or so times, go to the right rear, crack the bleeder and let the air out. repeat that process on the same wheel til no more air, move to the left rear, same deal, then the fronts. make sure to keep the res topped off throughout.
i rarely use a second person to bleed brakes, and have no troubles. |
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Aaron Samba Luddite

Joined: November 20, 2002 Posts: 1839 Location: WA
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Posted: Mon Jun 18, 2007 10:07 pm Post subject: |
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I've done my bus brakes the same way I've done all my other cars, am I missing something?
-fill the mc. res.
-put some extra fluid in a jar
- put a section of tube on the bleeder (rear pass, rear driver, front pass, front driver)
submerge the tube in the fluid in the jar, open the bleeder.
-pump the pedal with your hand while watching for the bubbles to stop running thru the tube. Don't let the mc. go dry. Rear pass side is the hardest to monitor.
-when the bubbles stop close the bleeder while keeping the end of the tube submerged in the jar so no air can get in.
The above method is simple, clean and has worked fine for me. I don't think brakes are a thing to rush thru anyway. |
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Campy Samba Member
Joined: January 10, 2005 Posts: 4933 Location: Chico, CA
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Posted: Mon Jun 18, 2007 11:14 pm Post subject: |
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For many years, I bled my buses brakes the same whay that 570GRAG described, which is the same way that it is described in the Floyd Clymer's transporter manual.
I got tired of having to have someone push down on the brake pedal while I opened a bleeder valve so I bought one of those cheap ass little brake bleeders, the one with the tiny plastic bottle with the magnet on it, at Kragen's and it has worked good.  |
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space junkie Samba Member

Joined: July 15, 2006 Posts: 51 Location: WA
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Posted: Mon Jun 18, 2007 11:30 pm Post subject: |
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| I use the glass jar filled with brake fluid method. |
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crass camper Samba Member

Joined: May 02, 2007 Posts: 74 Location: sheep farming in the falklands
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Posted: Tue Jun 19, 2007 7:00 am Post subject: |
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| Just buy an easy bleed kit from a good motor store they have a valve in them that lets air out but not in |
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incynr8 Samba Member

Joined: September 23, 2003 Posts: 822 Location: Soylent Green is PEOPLE!
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Posted: Tue Jun 19, 2007 7:20 am Post subject: |
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you can use a spare cc syringe for it.
I want a postive fluid pressure bleeder than rams in fresh fluid under mild pressure into the MC and down the pipes, I am seriously considering one of those, gets fluid changed out fast. _________________ ..........
Do it right, or don't bother. |
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Wayland Samba Member
Joined: December 29, 2005 Posts: 500 Location: Lasqueti Island B.C.
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Posted: Fri Jun 22, 2007 8:30 pm Post subject: |
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| The method I use for bleeding brakes by myself on my Vws and all other cars is to pump the pedal 6 or so times, then insert a length of 2x4 or whatever between the seat and the pedal. Then you can go under and crack the bleeder screw, then repeat the pump-and-block procedure. This is by far the fastest and easiest way to bleed brakes by yourself. |
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cosmo Samba Member
Joined: February 07, 2004 Posts: 179 Location: FWB, FL
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Posted: Fri Jun 22, 2007 8:36 pm Post subject: |
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| I use the bleeder valves. They let the fluid out but have check valve inside to prevent air from returning. Use just crack the valve and start pumping the pedal. You can get them from any auto parts store. |
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burnt clutch Samba Member
Joined: January 28, 2005 Posts: 193
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Posted: Sun Jun 24, 2007 7:33 am Post subject: bleeder valves |
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Thanks much for the replies! Does anyone have a brand and size of the bleeder valves that they're using? I remember trying to get some for my Scirocco a few years ago, but the FLAPS only stocked domestic SAE valve sizes.
-Karl |
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Kevin T Samba Member
Joined: February 06, 2006 Posts: 123 Location: Sandwich Islands
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Culito 11010101

Joined: December 07, 2006 Posts: 5882 Location: Columbia Missourah
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Posted: Sun Jun 24, 2007 7:25 pm Post subject: |
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$70?!
With a helper, tube and clear bottle, it takes like 15 minutes.... _________________ © CJ Industries, Inc.
'64 standard w/2.0L type 4
'62 bug
| johnnypan wrote: |
| ...dont pay no attention to Culito,he's a cornhole.. |
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cdennisg Samba Member

Joined: November 02, 2004 Posts: 20968 Location: Sandpoint, ID
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Posted: Mon Jun 25, 2007 10:25 pm Post subject: |
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The only problem I see with having the hose in the bottom of a bottle of fluid and pumping away at the pedal is this; when the pedal is released some fluid will be drawn back into the system. The point in bleeding brakes is to either clear out old dirty fluid or to replace water contaminated fluid. Either way I wouldn't want to draw the old stuff back into the system. I use two people and only have the valve open when the pedal is being pushed or held down. If the whole system is new, then none of this matters, I guess.
I like the idea of the one-way valves in the bleeders or a pressure system, but as long as I can do things the old way for no extra expense, thats what I'll do.
I've bled the fronts by myself by laying under the bus and pulling on the lever between the brake pedal and the MC while opening and closing the bleeders, but that is tough to do for the rears. |
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Ian Samba Moderator

Joined: August 28, 2002 Posts: 4961 Location: 713
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Posted: Tue Jun 26, 2007 8:09 am Post subject: |
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| cdennisg wrote: |
| The only problem I see with having the hose in the bottom of a bottle of fluid and pumping away at the pedal is this; when the pedal is released some fluid will be drawn back into the system. The point in bleeding brakes is to either clear out old dirty fluid or to replace water contaminated fluid. Either way I wouldn't want to draw the old stuff back into the system. I use two people and only have the valve open when the pedal is being pushed or held down. If the whole system is new, then none of this matters, I guess. |
I thought the point of bleeding the brakes was to get air out of the system??  _________________ All your Buses are belong to us.
Love and good roads!
IN LOVING MEMORY OF ROB CRESS 1968-2012 & KEN CRIMMINS 1957-2024 |
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Campy Samba Member
Joined: January 10, 2005 Posts: 4933 Location: Chico, CA
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Posted: Tue Jun 26, 2007 11:36 am Post subject: |
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| Cdennisg is right: when using the hose from the bleeder valve into a jar of brake fluid method, the bleeder valve should only be opened while the brake pedal is being pushed down. It then needs to be closed when the pedal is near the floor (before it is let up) so air doesn't go back into the system. The only other thing is that the whole point of letting fluid out of the bleeder valve, besides replacing the brake fluid, is to get the air out of the system. Also, brake fluid attracks water and should be replaced every few years. |
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Yustrn JHC Controla

Joined: August 01, 2000 Posts: 5492 Location: Ovaland, CA
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Posted: Tue Jun 26, 2007 12:28 pm Post subject: |
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I just did this last weekend myself.
A. 1 empty Corona Bottle
B. 1 line of clear hose
C. New brake Fluid.
Pumped about 30 times, used the end of a broom stick to hold down the pedal, pour some brake fluid into the bottom of the bottle insert clear hose, put the other end of the hose on the bleeder valve, released and watched for air bubbles...did it again as necessary, follow the above steps till you've done all four..and you should be golden. Mine work great. _________________ I own a copy of "The Car of the Century" by Garwood. This means I am authorized to act like a twat in thesamba forums. |
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Culito 11010101

Joined: December 07, 2006 Posts: 5882 Location: Columbia Missourah
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Posted: Tue Jun 26, 2007 5:18 pm Post subject: |
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Just don't mistake the brake fluid for Corona later. _________________ © CJ Industries, Inc.
'64 standard w/2.0L type 4
'62 bug
| johnnypan wrote: |
| ...dont pay no attention to Culito,he's a cornhole.. |
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