Bleed Brakes,

[chris-red]

Right, I'm fairly competant when it comes to the mechanicals I give myself a 4 spanner rating

One thing that has always never worked for me is bleeding brakes. I fucking hate it I have bought serveral kits which are meant to make the job easier none have worked. Currently I am trying with a one way valve jobbie but it is shit, so I am going to hack it off and go with the old tube in fluid method.

So could somebody run through the steps and give me tips on how to sort it? I really wanna get it nailed.
____________________
Well, you know what they say. If you want to save the world, you have to push a few old ladies down the stairs.
Skudd:- Perhaps she just thinks you are a window licker and is being nice just in case she becomes another Jill Dando.
WANTED:- Fujinon (Fuji) M42 (Screw on) lenses, let me know if you have anything.

[Phoenix]

Those one way tubes still seem to suck air back up even if you submerge them in fluid. The way I do it is put a ring spanner on the bleed nipple, then put the tube on, then pump the lever and hold and open the nipple slightly until the lever goes back to bar, then tighten nipple and repeat until you get no bubbles out.

If you just open the nipple and keep pumping fluid through you never get anywhere.

Friend has a mityvac which he used on another friends bike, yes it was quick to do but takes a lot longer to set it all up and the results weren't as good as the above method.

Never subscribed to all this tapping brakelines and calipers rubbish, tapping a solid metal caliper with a spanner isn't going to dislodge any air, moving steering side to side might, just do that before you last few 'pumps'.

[Dalemac]

Follow the steps above and you cant go wrong.

How long have you had the bike? might be a good idea to replace the fluid and even strip and clean the caliper(s).

i tend to change my fluid every year or 10kmiles, although you can easily get away with double that.
____________________
YBR125 -> GPZ500S -> SL1000

[Timmeh]

When doing mine I get some long flexible 7mm ID silicone hose from a aquatic centre (they use it in fish tanks) stuck one end over the nipple and the other end at the bottom of the resevoir. Pumping the lever causes air to to be expelled at both ends of the system and fluid gets sucked down the hose into the caliper. All you've got to do is keep topping the res up to stop it running dry.

By doing this you creating a closed system and the air can only come out and not get sucked back in.

Took me about 15 minutes from start to finish, and the best thing is you don't piss fluid all over your tyres and alloys. Once you've done, tighten the nipple back up then pour the unused fluid into the tin.

job done
____________________
GSXR400 x2 | '94 RVF400 | '93 TZR125 4DL (again)
20:22:30 BLUEX5: i would love to be forced to undergo a**l plugging with different sizes
20:48:18 Temeluchus: comp you hunk of smouldering homos3x you

[ms51ves3]

Tie the brake lever overnight, job done

[steven_191]

me and ben are coming round to sort you out.



prepare the lubrication!!

[Mark65]

Keep the hose higher than the caliper along with the fluid container and the air bubbles will rise away from the caliper.

Mark
____________________
07 Yamaha YBR125, 07 Honda CG125 , 15 CBR300R (Chocolate Crank, Deaded), 16 CB500FA, 19 Honda Forza 300, 70 Suzuki SV650

[Frost]

Definatly agreeing with the rubber hose option.
Opening and closing the bleed nipple and pumping works for getting a little bit of air out, but when the lines and caliper are empty it takes forever.

Suck on the hose and pull the lever in. Suck hard enough (lol) and pump 3 times and you should be about done!

Its alot easier to bleed if the caliper is off the bike so you can swerl it around a bit and make sure all the air can get up to the bleed nipple. Tapping the caliper against the fork leg also helps a fair bit.

[sickpup]

So two people in this thread use my method as posted before and neither have thanked me, I feel unloved.

[Valentino Mossy]

I use the "stick a pipe on the nipple and suck it" method... Just to get it started. It makes it alot easier.

(warning.. Brake fluid tastes bad,so stop as soon as you see it in the pipe !... Trust me !)
____________________
Ducati 916,white framed corse replica https://www.bikechatforums.com/viewtopic.php?t=239309
Ducati 160 monza jnr soon to be cafe racer
https://blauschatfroums.freeforums.net/

[MarJay]

[Flip]

I butchered some pipes 'n' things from Mrs Flips dialysis packs and took some 30ml syringes. Jobs a good'un.

[sickpup]

[stirlinggaz]

hi,
since i bought a couple of big syringes & a lenth of washer hose, i've never had a problem bleeding brakes.
used to hate it before.
suck out all the old fluid by opening up the bleed nipple,puting the hose over it & sucking it out with aa 75/100ml syringe.
even re-building a brake caliper is a doddle now.
just fill the syringe up with brake fluid & fill up via the bleed nipple.
expel any trapped air by opening the bleed nipple a couple of times.
tie the lever to the bar overnight.
& give it a last crack open of the bleed nipple & top up if neccessary..
done this a few times now, successfully.
i now tend to bleed brakes as a matter of course now when i buy a bike, whereas before i would put it off until i had to do it.
cheers,
GAZ

[MarJay]

[sickpup]

[MarJay]

[chris-red]