Proper way to bleed the brakes??

[tuscan_al]

I have changed my fluid in my tuscans brakes, but am struggling to get the hard pedal feel back. Assume have air in the system still. So what is the correct way to bleed these AP calipers that have two nipples on the front ones?

[Boosted LS1]

Not sure about your calipers but I'd bleed the low valves first. I'd also use an easibleed tool They are pretty cool and well worth the investment.

HTH.

[Ballistic Banana]

Outers First and then Inners I believe one side at a time of course. They can be a pain keep at it will come good. sometimes takes a little patience...

BB

[rev-erend]

Were the brakes spongy to start off with.. or was you just changing the fluid ?

Assuming the latter - as the others have said and also do a final pressure blead.

Have the assistant tighten the bleed nut - you pump up the pedal (3 or 4 strokes) and hold the pedal down - now have them release the bleed nut - then hold the pedal down and tighten nut.

Did any air come out - if so repeat.

It's worth saying - undo the nut the minimum as this if its slack in the thread can induce air too.

[tuscan_al]

Think i have just undone the nut a little too much as one thing. The pedal was fine before. Just a little soft, now its very soft.

[rev-erend]

Reason I asked is that the master cylinder may be worn..

if bleeding does not get rid if it - that's where to look next.

Just look for evidence of fluid leakage (prise off the rubber).

[GreenV8S]

How did you change the fluid?

Usually you'd simply bleed them, but if you allowed the reservoir to get low while you were doing it you could have got air into the master cylinder. Depending on the geometry of the master cylinder this might be tricky to get rid of. If you bled the brakes by pumping the pedal, this uses a lot more travel than normal and can damage the seal if the bore is worn.

[tuscan_al]

I did pump the edal, but was careful not to push it all the way to the floor. I will be re doing the front calipers tomorrow day time and see how it goes...

[Number 7]

Better to use a pressure bleeder (runs from a tyre valve connection, using approx. 20psi, such as Easybleed). Start at the furthest point from the master cylinder, and work back to it.

7.