1940 Ford Brake Bleeding Problem
 

Just wanted to get back to everyone.....I took to my Buddy's Garage and bought all new lines and fittings, etc. I ran copies of everything you guys suggested and gave to him to review. 2 weeks later....I now have solid brakes !!!

Thx to all who sent me suggestions on a resolve !

Best regards, Mike

Re: 1940 Ford Brake Bleeding Problem
 

NO report as to the issue you were having???? Your experience could save another Barner down the road OR fill the knowledge bank of some of us here too. Glad you are back on the road and even happier that you are STOPPING!!!!!


Kind regards Rockfla

Re: 1940 Ford Brake Bleeding Problem
 

Here's his earlier thread. https://www.fordbarn.com/forum/showthread.php?t=296656
So what was the problem?

Re: 1940 Ford Brake Bleeding Problem
 

Guys.....all I can tell you was that there were some small leaks and by replacing the whole damn thing it closed the system. He told me once the system was air tight.....the bleeding took some time, but it went well. I think it was a combination of old lines, and with everything replaced it was okay.

Thx again.....Mike

Re: 1940 Ford Brake Bleeding Problem
 

Thanks for getting back to us.
Paul in CT

Re: 1940 Ford Brake Bleeding Problem
 

Good that you got it fixed and got back to us too.


Thanks

Re: 1940 Ford Brake Bleeding Problem
 

Brakes are a bit spongy and I have to press pedal down a lot to come to full stop, but a lot better. Need to do a bit more work to get a hard pedal with consistency. May need to be bled again.

I appreciate all the help that was given here !

Thx….Mike

Re: 1940 Ford Brake Bleeding Problem
 

Mine are the same on my 39 Mercury.......I am fixing to have it back on my lift and, like you, will bleed them one more time......BUT I believe mine is due to the use of Silicone fluid?

Re: 1940 Ford Brake Bleeding Problem
 

I'll bet there's still some air in there or they need to be adjusted. JMO
Paul in CT

Re: 1940 Ford Brake Bleeding Problem
 

I have the same problem with bleeding the brakes, on a 40 tudor also with Silicone fluid.


Drove me nuts last fall, and finally gave up for a while, had to get away from it.
So i'm going to try again, and its not easy for a kid 85 years young, still

playing with cars.
If its a no go , i'm going to start all over again with Dot #3 fluid, flushing the system with denatured alcohol....ect.. ect...

Re: 1940 Ford Brake Bleeding Problem
 

I put Dot-5 in my '68 Corvette about 25 years ago. It was very difficult to get bled. I had my girlfriend pumping the brakes for what seemed days until I finally got it right. We had several domestics over it. Once in was done, they brakes were great until I sold the car about 5 years ago. It was such a difficult experience, that I never used it again. I don't miss it at all.

One other thing to consider is that silicone fluid shouldn't be used with anti-lock brakes because of it air-entrapment properties. Since all cars these days have anti-lock brakes, I think it may be disappearing from the market in the future. It certainly will become more expensive. I'd stick with Dot-3 or Dot-4.

Re: 1940 Ford Brake Bleeding Problem
 

Morning guys.....

I used DOT 3 for the fluid and no silicone used. I just had to make sure that the lines didn't leak at all and that has been done. I bought and waiting for a Motive Products Pressure Bleeder and it should be here this week. I then have to make up a plug with air connect fitting to seal up the Master Cylinder. We'll see if that works better. I'm only going to do this once and don't plan on ever going through this again. Started last September !!!

Hope...I'm going on 80 years old next year, so this is my last brake rodeo on a '40 Ford.

I'll let you know how the Motive Unit works out. It may be a couple weeks though.

I have brakes, but too spongy to really feel comfortable.

Later...thx Mike

Re: 1940 Ford Brake Bleeding Problem
 

Hey Mike



Keep me posted, on how you're making out.



I'm "lazily" trying to figure out, how much the brake shoes come in contact with the drums.


Hope:confused: