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| 63 Dart Brakes - disappearing fluid https://slantsix.org/forum/viewtopic.php?t=45044 |
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| Author: | Eatkinson [ Sat May 21, 2011 2:15 pm ] |
| Post subject: | 63 Dart Brakes - disappearing fluid |
My 63 dart wagon had been in a storage a long time with shot brake lines. 1 year before I pulled it out of storage, I got it out, ordered a new brake line kit, and had new lines installed, along with new front brake shoes. That was a couple years ago. Right after he replaced the brake lines and front shoes, cleaned rust from the rear drums, and put in new fluid, I put the car back into storage another year. Then, in Aug 2010, I pulled it out, trailered it home here to LA. I've been slowly going through the car piece by piece, as I Sunday drive it. The brake pedal keeps getting low, and the fluid in the master cylinder keeps disappearing. But I can't tell where. I've inspected the wheel cylinders, bleed valves, hoses, junctions, etc. for leaks and I'm coming up with nada. The master cylinder itself probably needs replacement (it's rusty on the outside, and I have noticed a "moist" appearance, + a small drip from the brass plug directly underneath where the line exits the cylinder). But I tightened the cap and plug, and that seemed to help with the leaks. Just to experiment, I keep putting new fluid in, bleeding the brakes, and the pedal always firms up again. The first time I had to do this, it wasn't a month and a half before I had to do it again. But the last time I bled the brakes and put in new fluid was December/January, and (with weekend driving) it's lasted until now before the pedal has lost it's height and firmness. After the first month and a half when I had to add fluid and bleed the brakes again, I thought I surely had to replace the MC, but this last time, I wondered, because I saw no drips, and the pedal stayed high/hard. But a week+ ago, it lost it again. I have never done a brake adjustment on the car: I figured my mechanic did that 2 years ago. I don't know how, or how often it should be done, but have a FSM and will go through the process if people think that's what I should do before replacing the MC. But I do know my brake pedal performance shouldn't be doing this, this frequently. What do people think I should check or adjust/replace, and in what order? THANKS FOR THE HELP! |
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| Author: | makapipi [ Sat May 21, 2011 3:13 pm ] |
| Post subject: | brake fluid loss |
try check under the dash by the brake pedal push rod for leaking fluid. |
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| Author: | Eatkinson [ Sat May 21, 2011 3:15 pm ] |
| Post subject: | |
I am a dunce. I totally forgot to mention that yes, I had noticed a large oily spot underneath the brake pedal on my carpet. So that must be where it's leaking from. Does that mean the MC must be replaced? |
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| Author: | SlantSixDan [ Sat May 21, 2011 3:36 pm ] |
| Post subject: | |
1. Yes, you need a new master cylinder pronto; you are flirting with death because sooner than later the master cylinder is going to fail the rest of the way, and then you will have no brakes at all, very suddenly. 2. Install a dual-chamber master cylinder, not the unsafe pre-'67 single-pot variety you have now. It will require a minor bit of replumbing. It is well worth it. 3. The default typeface is fine. Why do you keep messing with the font in your posts? :shrug: 
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| Author: | Eatkinson [ Sat May 21, 2011 3:54 pm ] |
| Post subject: | |
Thanks Dan. I will replace. Re: my font, I like writing bigger. So, I'm not messing with it, I'm just enjoying using a function of the board 
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| Author: | Eatkinson [ Sat May 21, 2011 4:27 pm ] |
| Post subject: | |
Is it necessary to bench bleed the master cylinder before replacing and installing? Alrighty, I just read up, and clearly, it is, so please disregard the question. |
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| Author: | wjajr [ Sun May 22, 2011 7:21 am ] |
| Post subject: | |
I as well prefer larger fonts when composing any dialog to be posted, and a more efficient, or rather, a spell check with a much better imagination than the one employed by the /6 board. The solution to being able to see which punctuation I have incorrectly used, and all misspellings is to copy & paste from MS Office Word into the gray /6 composition box. Those ever helpful red & green lines automatically supplied by MS Office as one hunts & pecks their way through an entry are invaluable. Your easy on the eyes MS font, when copied to /6, is automatically translated into its standard font. It is one thing reading a particular font, and another dealing with one that is hard to see while composing prose. Bill |
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