Rear Brake Problem

[dunny29er]

so when i press my Back Brake down it stays down i have to push it back up to release the break it doesn't come back by itself iv tried spaying it with WD40 but no luck not sure what to do

thanks Dunny

 

[mattbombers]

Put the spring back on, or if ya lost it buy a new one

 

[dunny29er]

the spring is on always has been

 

[westy465]

piston probably seizing up. dismantle, clean, reassemble.

 

[DHZ_XR8cing]

Brake arm is possibly hitting on the engine case??
Brake arm needs removing and shaft greasing??

 

[dunny29er]

nar its not hitting and what do u mean by shaft?

 

[motodevo]

the shaft the rear brake lever pivots on i'd assume

 

[dunny29er]

oh ok i got ya ok well ill clean the piston and remove the the lever and clean and oil the shaft

let u know tomorrow how it goes thanks guys

 

[dunny29er]

i went to take it off but the thing wont budge, i know it can come off coz i did it before but its like its glued on

 

[my67xr]

its rusted on then.
let it soak with some wd40/crc and try again later.
otherwise you could try and pry it off with a screwdriver etc, but be careful u dont slip and scratch the frame or gouge yourself

 

[dunny29er]

if it was rusted wouldnt it move at all?

 

[DHZ_XR8cing]

Do you mean rusted on the shaft or the piston is stuck in?

 

[dunny29er]

i dont know if it rusted it must just be dirt in it but the the brake arm its self no the piston or the reseviour thing coz i took all that off and it still gets stuck even with no bake attached to it but i cant get the brake arm off its stuck on iv tried WD40 but no luck

 

[my67xr]

can you move the pedal up and down?
spray some more wd on it and keep wiggling it up and down, eventually it will come free.
or at least loose enough to be able to put a thin flat blade screw driver in between the pedal and the frame and pry them apart whilst wiggling the pedal

 

[dunny29er]

yer i can already fit a screw driver but it didn't do much good it just bent the metal

 

[my67xr]

yer i can already fit a screw driver but it didn't do much good it just bent the metal

lol, get a better screwdriver...

you might be able to try the hook end of a claw hammer?

 

[dunny29er]

no i ment bend the metal of the brake arm

 

[matt771]

if its nothing outside of the brake, there is a small bar that rotate and expands the drum. it sometime seizes when the brake is fully applied. you should be able to see it move when you take the wheel off. take a look at it maybe clean it up

 

[Georgalis]

if its nothing outside of the brake, there is a small bar that rotate and expands the drum. it sometime seizes when the brake is fully applied. you should be able to see it move when you take the wheel off. take a look at it maybe clean it up

spot on Matty , whenever mine sticks thats what I do , I dab some grease on screwdriver & place it on either side of that bar that moves & its all good again