| Author | Message | ||
     Austinrider |
Hey gang, some of you may be really good at this and Im hoping to get some knowledge from you. I have some air in the front brake line that I can not get rid of, no matter how I try. I started by getting one of those vaccum pump things to help get the brakes a bit tighter/better responding. Well, the darn hose just doesnt do what I want it to, and leaks air into the line when I try to vaccum it out. So, I tried the old fashion way. Open the bleeder, squeeze handle, close bleeder, release handle. Am I doing something wrong? I've gone through and entire bottle of DOT 4 and havent really improved my brakes much. The brake pads are pretty new, so I know thats not the problem. Any help or suggestions is appreciated. Thanks | ||
| Skeenix |
This may seem obvious, but try using a hose clamp to secure the vacuum hose to the zerk fitting. I just use a section of hose and my mouth to *ahem* suck. When the fluid/air fills up the tube, tighten the zerk fitting and empty the hose. Works great for me. YMMV. | ||
| Josh_ |
or try a small ziptie. Do a search on here for Henrik's method using a syringe to inject brake fluid from the caliper on up. Works great. | ||
| Wyckedflesh |
Austin, the BEST thing you can do is pull all the fittings and wrap them in teflon tape. After using Henrik's method with the syringe which is in the KV, I can now do a quick bleed with my mighty vac after changing and or scuffing my pads. You no longer see those little tiny streams of airbubbles when you pump the vaccum pressure up. You also don't loose the vaccum pressure as quickly as when you didn't have them teflon taped. | ||
| Bomber |
also, try zip-tying the the brake lever back and leave it over night -- sometimes, opening the reservoir to the line will allow bubbles to find their way up to the reservoir (works about 2 outa 5 times for me) | ||
| Hippo888 |
>Open the bleeder, squeeze handle, close bleeder, release handle. It's squeeze (pump several times) handle, THEN open bleeder, hold handle, close bleeder, release handle. I'm not sure if it was a typo, but the way you worded it would not purge any air from the brake system | ||
| Henrik |
This is what I've been doing for awhile. Works well for me: http://www.badweatherbikers.com/cgibin/discus/show.cgi?tpc=3842&post=115988#POST 115988 I have since read in RRW, and like the added safety, not to use a box wrench on the bleeder nipple. It's easy, but you run the risk of forgetting and leaving the wrench there after you're done. Although tiny, the wrench could cause some "moments" if it spun and got jammed in the wheel (would most likely just snap the nipple, but still). It could also get shot off in any direction, and on track, parts bouncing off bikes are frowned upon  Henrik |
