Brake Bleeding Problems

I have a Wilwood dual master pedal ***embly. The directions say to have three people bleeding brakes, one on front circuit bleeding, one rear circuit bleeding, and one to push the pedal. Worked great to bleed the rear brakes but I can not get the fronts bleed down.

I have 72 Camaro front calipers and a 7/8 bore Wilwood master cylinder, all brand new, with new pads. Ive resorted to removing the rear master from the pedal ***embly so I can work on just the front brakes.

Hard brake lines are new and have no loops in them where air can get caught, but it does have a T fitting to branch to each wheel. Flex lines are new.

If I pump the brakes 10 to 15 times I get good pedal halfway down the stroke. As soon as I release it and push the pedal again it goes to the floor.

Ive went threw 3 bottles of fluid but have yet to get a good stiff pedal. Including re bench bleeding master, and using a mallet while bleeding to try and knock any air bubbles loose.

I am seriously overly frustrated because I just cant seem to figure out whats going on.

Any advice would be appreciated, as I am all out of ideas.

 

Check your mail box.

 

Can you gravity bleed this type of systems?

That's how I do it. Works good, but it takes a while.

 

try a power bleeder [called easy bleed in the uk] you fit it to the master cylinder and to your wheel air valve and it forces the fluid through, i've used them and they are a good bit of kit.

 

I'm glad that worked my friend, appreciate the PM and thanks for letting me know, TR

 

why not share the info for the board?

 

TR suggested to have someone watch the master cylinder while bleeding. When bubbles stop coming out of the master cylinder to stop pushing the pedal and close the bleeders off. Seemed to work in my case.

The only thing I could add from my experience is that with the wilwood setup i found it easier to bleed one master at a time by taking the pushrod out of one master. Also, speed bleeders made life a lot easier.

 

Everytime I do with the same type scenario, and I have several times in the last few months, it ends up in some ******* match, and frankly sir I'm sick of it. I go out of my way to help sometimes, just for someone to want to start a fight. I know from helping pottsie in the past he is a gentleman and respectful of others and I'm always glad to help him, thank you sir for the question, TR

 

I have always had great luck by having someone pump the pedal and bleeding the brakes over the past 45 years with the exception of one nameless 2-1/2 ton truck that sat for 10 months out of the year every year and got driven during harvest for two months or less than sat in the shed again.

then I did some brake work and changed a few parts on my wife's OT van. After fighting with it getting air in the brakes for almost two months and having to bleed them who knows how many times I took it apart Saturday and replaced a steel line from the wheel to the equalizer valve. Before it had an adapter fitting at the equalizer valve and I had cut and flared the line to change fittings. Either the flare was off a bit or the adapter fitting wasn't seating in the equalizer valve correctly.

Is there a chance that you have a fitting that isn't matching up to the fitting that it is going into correctly even though it seems to be designed to do it right?

Is there any flare fitting that may have a suspect flare?

The fitting that was giving me problems wasn't visibly leaking fluid but it would let air in the system. Everything was tight according to being checked several times.

Give that some thought and check over that part of the system to see if there is any fitting that may be suspect.