Frustrating Brake bleed

[kellydw]

I have a persistant problem with bleeding the brakes on my 1973 Cuda. Have installed new M/C , booster and also a new proportioning valve.The M/C was bench bleed before installation. I keep getting air bubbles from the bleeders which will not stop. I have checked every fitting in both front and rear brake loops for leaks and all seem tight and are not leaking. Am bleeding in the correct order starting from the rear right but cannot get the air bubbles to stop and the brake peddle keeps going close to the floor . Have been trying to solve this issue for some time with no luck. Any one have an idea what the problem could be ??????

 

[Katfish]

Had similar issue, my problem was air was getting in around the threads when the bleeders were cracked open. Read a tip to add sealant to the threads and it helped.

 

[kellydw]

Had similar issue, my problem was air was getting in around the threads when the bleeders were cracked open. Read a tip to add sealant to the threads and it hel

Had similar issue, my problem was air was getting in around the threads when the bleeders were cracked open. Read a tip to add sealant to the threads and it helped.

Hi there - wondering what kind of sealant was used

 

[Challenger RTA]

Brake Issues

https://www.forebodiesonly.com/forum/threads/brake-issues.34344/#post-199603 List of brake Questions here. Not in any order. Brake Bleeding Nightmare Long brake pedal travel 1970 Cuda Soft Brakes Power booster piston relation to master cylinder Rear brakes locking Brakes not working Help all new...

www.forebodiesonly.com

What you said above I did except the booster. It ended up being the rear wheel cylinder.
Rear wheel seal might not be sealing. Bad seal, Rust or debris.