Author |
Message |
Dktechguy112
| Posted on Wednesday, April 21, 2010 - 11:26 pm: |
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I got a mityvac and i am going to try to bleed the clutch and front brake this weekend. I am reading the manual on the mityvac, and it talks about bench bleeding the master cylinder if it was removed, which mine was. I put on a high bar kit, so i had to change out the lines. the bench bleeding they talk about seems to apply for cars, as they are talking about multiple ports on the master cylinder. i have a few questions: 1. do i have to bench bleed the master cylinder? 2. I have attached the lines to the clutch cover and brake caliper, should i put some brake fluid in them before i attach the lines to the master cylinders? 3. once i attach the lines, the procedure for bleeding as i understand it: a. fill up the master cylinder. b. attach the mity vac to the bleeder screw. c. pump up the mityvac. d. open the bleeder screw . e. pump until the fluid comes out with no bubbles, making sure that the master cylinder does not get low. f. close the bleeder screw and remove the mityvac, did i miss anything? |
Luvriding
| Posted on Thursday, April 22, 2010 - 10:14 am: |
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I would reattach all cables and follow your directions after number 3. |
S1125r
| Posted on Thursday, April 22, 2010 - 11:38 am: |
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Make really sure that the seal is good between the Mityvac and the bleeder screw, otherwise it doesn't work very well. |
Dano_12s
| Posted on Thursday, April 22, 2010 - 01:26 pm: |
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Take the bleeder out,apply teflon tape to the threads-be careful not to cover up the bleed hole-install and that should seal the threads from allowing air passed while vacuum is used. |
1_mike
| Posted on Thursday, April 22, 2010 - 05:53 pm: |
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Teflon tape...someone still makes that crap..? That garbage should NEVER be used on anything with a liquid flowing thru it... Mike |
Dktechguy112
| Posted on Thursday, April 22, 2010 - 06:59 pm: |
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i have never used teflon tape, i was going to use plumbers tape, that white plastic stuff on the threads, would that work? |
Jdugger
| Posted on Thursday, April 22, 2010 - 07:10 pm: |
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All you need is an empty soda bottle, some vinyl tube and an 8mm wrench. Takes a bit of time, but bleeds better than an angry woman having her worst month. |
Usanigel
| Posted on Thursday, April 22, 2010 - 08:11 pm: |
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My way. tube over the bleed nipple with the end into a catchment bottle. Make sure the master cylinder is full. Open the bleed nipple and leave it open till fluid flows and it will due to gravity. Top up the master cylinder and put on the cap, screws not needed yet. Squeeze the brake lever, hold and close the nipple. Release the lever. Open the nipple and squeeze the lever. close the nipple, release the lever. Check fluid level. Replace cover and try the lever. If it not "solid" bleed again. you might need to pump the lever to move the pads into position before you get a solid feel to the lever. |
Thefleshrocket
| Posted on Thursday, April 22, 2010 - 08:38 pm: |
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What's wrong with Teflon tape? When my garden hoses leak, a little Teflon tape solves the problem. Many years ago when I installed steel brake lines on my 03 gsxr1000, I over tightened one of the bleeder screws and it wept ever so slightly. I ordered a new bleeder screw but since this was my only bike, I put a little Teflon tape around the bleeder threads and that fixed the leak. I never did install the replacement screw and the brake line is leak free to this day. (Message edited by Thefleshrocket on April 22, 2010) |
Froggy
| Posted on Thursday, April 22, 2010 - 08:45 pm: |
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Oh no, another Teflon tape thread! |
Thefleshrocket
| Posted on Thursday, April 22, 2010 - 09:04 pm: |
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Seriously? Is Teflon tape right up there with which oil to run as far as cliched discussion topics? |
Froggy
| Posted on Thursday, April 22, 2010 - 10:05 pm: |
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Yes! http://www.badweatherbikers.com/buell/messages/327 77/301679.html http://www.badweatherbikers.com/buell/messages/327 77/301724.html http://www.badweatherbikers.com/buell/messages/327 77/301663.html?1188111571 Basically do a search by author for Southsidebuellone. |
Dano_12s
| Posted on Friday, April 23, 2010 - 09:07 am: |
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Didn't mean to start a war!The tape is used to seal the thread area of the bleeder for the Mityvac to not suck air when vacuum is used. FYI: the fluid sealing is done on the tip of the bleeder not the threads. |
Ratbuell
| Posted on Friday, April 23, 2010 - 10:09 am: |
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One step that I usually add to Usanigel's process (and a note - make sure the hose goes into the catch bottle and IS SUBMERGED in fresh fluid so it doesn't suck air) is to pull the brake lever to the grip and strap/tape/zip tie it there overnight, with the master cylinder cap loose. This allows any trapped air to bubble up (with no master cylinder pressure) overnight and has always resulted in GREAT braking feel for me. It's also a quick tip for brakes that are "just a little" spongy. Most times I do this, and I don't even need to touch a bleeder screw |
Blake
| Posted on Friday, April 23, 2010 - 11:57 am: |
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By far the best method I've found for bleeding motorcycle brakes... Buell Brake Bleeding, The Syringe Way |
Zac4mac
| Posted on Friday, April 23, 2010 - 12:54 pm: |
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Spot on Blake. That's how I do mine, it's almost painless. Z |
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