Brakes, front and rear

[Mr wallace]

Cleaned my brake calipers front and back,now having problems bleeding them,any advice greatly appreciated ta john

[Kwikasfuki]

What problem exactly bleeding them?

[Mr wallace]

Won't seem to bleed, no fluid coming through tube , still no pressure in brakes

[Burchy]

Depends on how they have been looked after in the past, but the tiny hole at the bottom of the bleed nipple can get blocked with crud.  Take out the nipple and see if you can blow through it

[Lonewolf]

Did you drain them completely or did you try and flush them through?

[exBanditOwner]

A couple of things to try...
Reverse bleeding. Force the fluid in the bleed nipple on the caliper up to the reservoir.
Suction bleed. Use a mityvac (spelling? ) to pull the fluid down the pipe from the reservoir.
Pressure bleeding.  And old reservoir cap, a schrader valve and a bike pump pressurise the fluid down the pipes.

I've tried them all with various degrees of success.  Sometimes simply waggling the lever a few mm to prime it up before a full squeeze helps too.

[viper]

as you are having problems front and rear its unlikely there is a bike fault as they are independent systems, forgive me but have you bled bike brakes before, the first time I did mine and I had been doing car brakes for years I had similar problems, its a different process on bikes, its not the couple of pumps and let the air out like a car, its a continual pumping for ages with the nipple open but linked to a jar with fluid

[Mr wallace]

Thanks guys will get back to yous, plenty of options to try ta

[virginiajim]

Depends on how they have been looked after in the past, but the tiny hole at the bottom of the bleed nipple can get blocked with crud.  Take out the nipple and see if you can blow through it

Oh so many ways to respond to this...    still      I needed that shot of humour.

[Mr wallace]

Guys, see the front master cylender, the black rubber inside it is it supposed to be full of brake fluid or is that dry and the outside of it full ta

[exBanditOwner]

do you mean in the reservoir?
if you do then that needs to come out first and the fluid goes underneath.

[Mr wallace]

So there's no fluid inside that black bath ta

[exBanditOwner]

no. if it's what i think you mean (difficult without pictures).

I am describing the big rubbery thing that sits under the reservoir cap. it will pull out. if you are putting fluid on top of it, none will be entering the brake system at all.
pull it out and sort of flatten it back to shape. fill the reservoir up and try bleeding again.

if possible post a picture here so i am confident i am giving you the correct info.

[viper]

I wish I could help but I am struggling to understand his posts .
if you don't know exactly where you put the brake fluid you probably are not the best person to be working on your life saving braking system , id take it in somewhere .

[Lonewolf]

I can see this is all gonna end in tears when he cant stop!

Where's the disclaimer......

We need photos to appreciate which parts you are specifically referring to.