I'm trying to get my brakes blead. I purchased everything new about 5 years ago. I bench blead the master cylinder, hooked up to the lines and opened the bleeder on the right rear wheel and pumped and pumped and can't get any fluid to the wheel. Checked the proportioning valve to make sure it was centered, checks okay. Still nothing. Disconected the line at the proportioning valve and had the wife pump pedal, there is fluid. How much pressure should there be here. I don't have the truck running yet as it isn't wired yet. I would like to have brakes so when I unload it off the trailer at the muffler shop I can control the roll. Can anyone offer some help because I need it.

 

If you just opened the bleeder and pump the pedal by your self you are sucking air back into the system bleeding brakes with the pedal reallly is a two person job. Also if its all brand new lines and such it can seem like for ever to get fluid back there.

 

I have a bleeder tube with a check valve that is supposed to make it a one man operation and I have tried doing it with the wife pumping then holding the pedal down while I open and close the bleeder with no luck. I have ordered a new kit with a vacuum pump.

 

Did you put new rubber hoses on?

 

Rent or borrow a pressure bleeder if ya got an air compressor. It really does take Murphy of Murphys Law out of the picture.

 

Any chance you've got something that could have plugged up a line?

If you have fluid at the proportioning valve outlet then I'd pull the line at the rear wheel cylinder or caliper where you aren't getting any fluid at the bleeder. If you are getting fluid then you might have a blockage in the wheel cylinder/caliper.

 

I had a similar problem with front brakes. The question about replacing the rubber hoses was on target. My flex hose had collapsed internally and no fluid could pass. Pull that rubber hose and see if that is the problem,

 

keep pumping, it will sometimes take awhile with new lines. What I do is kind of a waste of fluid but it works with 1 person. Get a glass jar (small mayo or something), fill 1/4 to 1/2 full with new brake fluid, get a clear plastic tube and hook it to bleeder, put the other end in the fluid, open the bleeder and slowly pump the pedal. You need to check the master level A LOT so it won't run dry. Once you get fluid to all the wheels you get another person and bleed the system regular style.

 

Just finished my brakes 49 F1 original brakes with new parts.

Does the petal go to the floor?

If yes it has a leak, could be a hole in line or just the bleeder being open or bad master cylinder look for fluid leak.

If it is hard as a rock and will only go down a little bit you have a blockage or your brakes are hard against the drums or bad master cylinder.

My last problem was bad rubber hose and one new wheel cylinder was leaking.

 

I'll try this approach by removing the line and attaching my bleeder hose directly to it to see if that's the problem, if not I'll continue forward. Do you know how much fluid should squirt out with a pump of the pedal?

 

Yes, the whole system is new front to back right from the pedal

P.S. obviously I don't know how to multi quote,lol

 

Hello again, I finally got the brakes working. The unit it was from CPP and the problem was the rod on the booster was too short and not making contact with the master cylinder, once this was figured out we had the brakes bleed in 15 minutes. Phoned CPP and told them I bought the unit 5 years ago but just getting it ready to hit the road, they said the part would be in the mail the next day meanwhile I have a piece of hardwood dowel doing the job so I can safely load and unload onto a trailer.

 

That is awesome customer service! I had the same level of service, which is why I will continue to deal with them.