TomTIII Posted May 22, 2021 Share Posted May 22, 2021 30 Ford, converted to hydraulic brakes...worked fine when I put it up on blocks for the winter...brake pedal went to the floor & it didn't stop... checked & topped off the reservoir (it was down 3/4)... still nothing...pedal goes to the floor:-( any ideas? in the past, with other vehicles, topping off took care of it in most cases braking was restored, although I sometimes have had to bleed air. but never no brakes Link to comment Share on other sites More sharing options...
zeke01 Posted May 22, 2021 Share Posted May 22, 2021 The first thing to do is find out where the brake fluid went. 3/4 of a master cylinder worth should leave a trail. The next step would be to fix the leak and bleed the system. Zeke 5 Link to comment Share on other sites More sharing options...
keiser31 Posted May 23, 2021 Share Posted May 23, 2021 Be certain to adjust the brakes prior to bleeding them again. Link to comment Share on other sites More sharing options...
Graham Man Posted May 23, 2021 Share Posted May 23, 2021 (edited) I have seen brake wear consume brake fluid. Park the car somewhere where you can check for leaks or put cardboard under the car. If the fluid level is up and the pedal is still going to the floor, with no leaks, it is the master cylinder, yes the seal can go bad over the winter. I am assuming it is a single master cylinder car, pre 1966ish? Edited May 25, 2021 by Graham Man (see edit history) Link to comment Share on other sites More sharing options...
Frank DuVal Posted May 24, 2021 Share Posted May 24, 2021 On 5/22/2021 at 9:48 PM, keiser31 said: Be certain to adjust the brakes prior to bleeding them again. While I agree that is a good first step usually, in this case they worked before it slept, so there was no wear of the linings in storage. Find the leak. If no leak, then the master cylinder is bad (internally bypassing, but, wait, there would have been no loss of fluid if that was the only failure). I'm with Zeke, that much fluid loss should be visible. 1 Link to comment Share on other sites More sharing options...
TomTIII Posted May 24, 2021 Author Share Posted May 24, 2021 I haven't found leaks... if I can figure out the correct bore, I will get a master cylinder kit... Link to comment Share on other sites More sharing options...
Flivverking Posted May 25, 2021 Share Posted May 25, 2021 I bet it just seeped and weep-ed out the master over storage and probably was all along ...Looks like wet drip hanging on each end of the master that just never did hit the floor. 2 Link to comment Share on other sites More sharing options...
EmTee Posted May 25, 2021 Share Posted May 25, 2021 That line of rust along the bottom of the master cylinder is evidence of a fluid leak that ate the paint and the moisture absorbed by the fluid rusted the iron. Repair or replace your master cylinder. 4 1 Link to comment Share on other sites More sharing options...
TomTIII Posted May 25, 2021 Author Share Posted May 25, 2021 ordered a 1 1/16" master cyl repair kit fm. C&G; hope it works out... p.s. I used to have a '56 Bel Air 4DHT... great car w/power pack etc. 1 Link to comment Share on other sites More sharing options...
Flivverking Posted May 25, 2021 Share Posted May 25, 2021 For me when it comes to these old Fords.. "Nothing will beat all steel from your foot to the wheel" for pure dependable safety. Link to comment Share on other sites More sharing options...
TomTIII Posted May 27, 2021 Author Share Posted May 27, 2021 is "stopped great when I bought it" close to "ran well when parked"?? 1 4 Link to comment Share on other sites More sharing options...
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