I'm in need of a bit of help/advice

 

Yesturday/today I have been doing the front wheel bearings and top mounts on my car. While I had everything apart I decided to give my front brakes a clean as they were covered in brake dust and would squeak from time to time.

 

So I cleaned them up, checked the pistons were free by carefully pushing them back, built them back up and pumped the brake pedal till it felt good.

 

Finished putting the car back together and when for a drive to check everything and the brake pedal nearly hits the floors before they work. If I pump the pedal the brakes get better but then go rubbish again after a drive and I push the brakes.

 

Does it sound like the brakes need bleeding or could it be something else?

Did you disconnect the brake pipe that goes to the caliper?

Master cylinder seal inverted when you pumped them at a guess 

Did you take the cap off the brake reservoir before pushing the piston back? Possibly trapped air?

I didnt disconnect any brake pipes,

 

Yes I did take the cap off the brake fluid reservior  before I pushed the piston back,

try bleeding one more time,otherwise a caliper piston is seized

Both front calipers are not seized as the pistons moved back freely and easly, I havent tryed bleeding the braked yet as time was getting on.

 

I will try bleeding them tomorrow.

 

As I have only done the front brakes do I only need to bleed them or do I need to bleed all the brakes? and is there a certain way of doing this?

So you haven't actually bled the brakes at all? Get bleeding and hopefully that should be the cure.

Started to get ready to bleed the brakes, started by bleed nipple caps off and wire brushing and wding the bleed nipples.

Noticed that when I took the cap off the drivers side front bleed nipple it was wet inside as if it has been leaking, none of the others were like this just the drivers side front.

I' m guessing that if it a damaged bleed nipple the it could be sucking in air as well as leaking a bit of fluid

Think I may have found the problem or part of it, the drivers side rear wheel cylinder is leaking quite badly

ok then

Think I may have found the problem or part of it, the drivers side rear wheel cylinder is leaking quite badly

 

I would leave it on your drive if I was you.

Replaced the D/S rear wheel cylinder and also had to replace the rear brake pipe at the same time, bled the brakes up and now they work perfectly, even better than before.

better as they are now not broken.... Glad you found and fixed it!!!