10 replies to this topic

[neet street]

Hi all, went to bleed the brakes yesterday and after going all the way round (furthest away from master working round to nearest) the tested the brakes to find the fronts work well, but the rears dont work? brought a pair of new cylinders thinking this may solve the issue, but no!  Bleed through again and still no back brakes (when pushing the brake peddle down on bleeding, it will not go all the way down on the rears, but does on the front if that helps diagnose the issue)

thank you in advance for any help.

[ADRay]

what mark is your mini? to clarify, you are getting a good flow of fluid from the rears when bleeding?

[neet street]

Thank you for your reply

Its a 1984 Mini mayfair, and I do get some flow when trying to bleed, but the peddle def does not go to the floor?

Edited by neet street, 19 June 2026 - 11:20 AM.

[smurfomatic]

Have the rear brakes been properly adjusted?

[neet street]

Yes, all ajusted correctly... did fit a new master cylinder fitted last year, but car not used sinse. It was bleed at the time, but not tested, so maybe the problem goes further back to then?

Edited by neet street, 19 June 2026 - 12:42 PM.

[neet street]

Could the issue be with the presure reducing valve?

[weef]

Rear brakes can be a pain to bleed when using the "pump pedal" method.

Either employ the use of a pressure or vacuum bleeding device to successfully bleed the rears.

[neet street]

Thanks for the advise, I will give it a go tomorrow

[absx2]

Possibly the flexi hoses have swelled up inside so the fluid can`t get out

 

https://www.theminif...-unusual-issue/

[neet street]

Possibly the flexi hoses have swelled up inside so the fluid can`t get out

 

https://www.theminif...-unusual-issue/

Good call, Is this likely to happen to both hoses at the same time? bleeding the fronts the peddle goes straight to the floor, the rears it goes down, but not all the way... guess I will get some rear hoses as well, worth changing just in case.

[neet street]

Problem found There was an air lock between the master cylinder and the valve, so now sorted. thanks for all your input, and yes, the Gunson easybleed is great!