Brake issues again
Thread Starter
Instructor
Joined: May 2018
Posts: 248
Likes: 11
Brake issues again
1977 350 4 speed power brakes. I gravity bled all 4 corners till I couldn't see anymore bubbles and continued to bleed for quite a while. The pedal was very firm. I cranked up the car was backing out of the garage and the pedal went almost to the floor.
I did have the flrx lines clamped shut because I had to onstall the newly rebuilt calipers so maybe I will have to replace the ones that are 6 yrs. old. Any comments would be appreciated
I did have the flrx lines clamped shut because I had to onstall the newly rebuilt calipers so maybe I will have to replace the ones that are 6 yrs. old. Any comments would be appreciated
Melting Slicks
Joined: Apr 2021
Posts: 2,580
Likes: 2,037
From: Minnesota
Have you ensured the master cylinder is completely bled, like what is outlined in this thread?
I use a motive pressure bleeder to put air pressure on the master cylinder. Even then I have to use a rubber mallet to tap the calipers to get all the air bubbles out. It may take a lot of gravity bleeding to get the same results. I’ve heard of people using reverse bleeders with good results too.
I would avoid clamping the flex lines. If you do end up replacing them I would go with braided stainless steel. They have no rubber to expand and deteriorate over time.
I use a motive pressure bleeder to put air pressure on the master cylinder. Even then I have to use a rubber mallet to tap the calipers to get all the air bubbles out. It may take a lot of gravity bleeding to get the same results. I’ve heard of people using reverse bleeders with good results too.
I would avoid clamping the flex lines. If you do end up replacing them I would go with braided stainless steel. They have no rubber to expand and deteriorate over time.
