This will take you to the main site where there is history, technical information and other information on these cars.
This takes you back to the main page of the forums.
This is the control panel to change your password, information and preferences on this message board.
Click here if your lost your password or need to register on this message board. You must be a registered user to post. Registration is free.
Search this board for information you need.
Click here to buy cool Squarebirds mechandise.
Click here to support Squarebirds.org. For $20 annually receive 20mBytes webspace, a Squarebirds e-mail address and member's icon on the message board.
  #1  
Old 06-23-2015, 11:32 AM
YellowRose's Avatar
YellowRose YellowRose is offline
Super-Experienced and a HELLOFA nice guy
 
Join Date: Jan 21 2008
Posts: 11,935
YellowRose is on a distinguished road
Default '60 Stop Light Problem

Mike ~ mpwhd, new to the Forum, has a problem with his stop lights on his '60 Squarebird. Here is what he said.

"I have a 1960 Tbird hardtop and after driving then parking it, about 1/2 hour later the stop lights come on and stay on untill I pull up on the brake pedal !! I have replaced the stop light switch but still have this problem. Can anyone here help ? Thanks in advance !! Mike"
__________________

Ray Clark - Squarebirds Administrator
'59 Tbird "The Yellow Rose Of Texas" aka "Tweety Bird"
"It's Hip To Be Square"
Thunderbird Registry #33025 VTCI #11178

rayclark07"at"att.net (Home) 210-674-5781 (Cell) 210-875-1411
http://www.squarebirds.org/picture_gallery/TechnicalResourceLibrary/trl.htm
Reply With Quote
  #2  
Old 06-23-2015, 01:49 PM
simplyconnected's Avatar
simplyconnected simplyconnected is offline
Slow Typist
 
Join Date: May 26 2009
Posts: 7,157
simplyconnected is on a distinguished road
Default

Not much information to go on. Is this manual or power brakes? How long ago were the brakes bled? Were the master cylinder or booster changed recently?

If power brakes, the setup procedures are covered in your Shop Manual on pages 10-12 and 10-15. - Dave
__________________
My latest project:
CLICK HERE to see my custom hydraulic roller 390 FE build.

"We've got to pause and ask ourselves: How much clean air do we need?"
--Lee Iacocca
Reply With Quote
  #3  
Old 06-23-2015, 04:18 PM
Nicolas Nicolas is offline
Apprentice
 
Join Date: Apr 22 2014
Posts: 57
Nicolas is on a distinguished road
Default

Could it be the master cylinder piston not coming back to its original position due to the pedal not coming all the way and after a while, the return springs from the drums applying back pressure to the sensor ?
__________________
_______________________
Your ego is not your amigo !
Reply With Quote
  #4  
Old 06-24-2015, 01:31 AM
simplyconnected's Avatar
simplyconnected simplyconnected is offline
Slow Typist
 
Join Date: May 26 2009
Posts: 7,157
simplyconnected is on a distinguished road
Default

Nicolas, your thinking is on the right track.
When the M/C piston returns, it opens the ports to all the wheel cylinders. That allows fluid to go back into the reservoir.

If the piston does not return, that port is closed and no more brake fluid can return. Is that such a big problem? There's more...

DOT-3 brake fluid is glycol based like antifreeze. It sucks up water faster than Scotch, which makes it a 'rust inhibitor' until saturation sets in (usually after a few years). Now that the brake fluid has water, the boiling point lowers and the freezing point raises. Water also promotes rust from the INSIDE, causing that redish-brown color. New brake fluid is always water-clear.

Now we have brake shoes that are lightly scraping because fluid cannot return. The friction causes excessive heat which expands the brake fluid even more, causing a lot more heat which causes more brake friction. If the car continues, too much heat will ruin the springs and the shoes will glaze, fail and stink badly. It's a snowball effect.

Notice that much of this depends on the condition of the brake fluid. Your brake system only holds about a cup. Doesn't it make sense to change it every few years?

Folks get all worked up about brake fluid 'eating the paint off their car'. DOT-3 dissolves in plain water. If it gets on anything, rinse it off. There is nothing harmful to the environment in DOT-3 but keep your pets away from any spills until you rinse it off.

Never mix DOT-3 with DOT-5 because it turns to gum inside your brake lines. How can you tell which kind you have? Take a few drops from your reservoir and put it in a dish of plain water. If it dissolves, you have DOT-3. If it stays together in a ball you have DOT-5 which is silicone-based. - Dave
__________________
My latest project:
CLICK HERE to see my custom hydraulic roller 390 FE build.

"We've got to pause and ask ourselves: How much clean air do we need?"
--Lee Iacocca
Reply With Quote
  #5  
Old 06-24-2015, 01:48 AM
YellowRose's Avatar
YellowRose YellowRose is offline
Super-Experienced and a HELLOFA nice guy
 
Join Date: Jan 21 2008
Posts: 11,935
YellowRose is on a distinguished road
Thumbs up '60 Stop Light Problem

I wanna tell you that since I have been on this Forum, I have been (and you have also) getting a Masters Degree in Automotive Repair! From people like Dave ~ simplyconnected, our illustrious webmaster, John Pizzi ~ jopizz, and soooo many more, to numerous to list! What an education one can get by just reading all the posts. As your Administrator, every day I READ every post made on this Forum, in EVERY sub-Forum, from top to bottom. If you are just sticking to reading the sub-Forum for the year of your Tbird, you are missing an education for sure! Read everything posted regardless of the sub-Forum! I never knew how to test to see if you have Dot-3 or Dot-5 brake fluid in your MC. Until Dave just told us how to do a very simple check to find out!
__________________

Ray Clark - Squarebirds Administrator
'59 Tbird "The Yellow Rose Of Texas" aka "Tweety Bird"
"It's Hip To Be Square"
Thunderbird Registry #33025 VTCI #11178

rayclark07"at"att.net (Home) 210-674-5781 (Cell) 210-875-1411
http://www.squarebirds.org/picture_gallery/TechnicalResourceLibrary/trl.htm
Reply With Quote
  #6  
Old 06-24-2015, 02:18 AM
Tbird1044 Tbird1044 is offline
Super-Experienced
 
Join Date: Jul 31 2012
Posts: 1,050
Tbird1044 is on a distinguished road
Default

Mike:
We still don't know if you manual or power brakes, and if you do have power brakes, does your car have factory AC? Ford used a different booster on AC cars.
Now, without knowing your brake setup, there is a spring on the brake pedal that is common to power and manual systems. I will attach a picture. The spring reference number is 2472. If this spring is broken or has become disconnected, the brake pedal will NOT return to its full position. On a friends car, this spring had somehow become disconnected, so we just needed to reattach it properly.
More to come when we know what brake setup you have.
Nyles
Attached Images
File Type: jpg IMG_4513.jpg (343.7 KB, 83 views)
Reply With Quote
  #7  
Old 06-25-2015, 01:42 AM
simplyconnected's Avatar
simplyconnected simplyconnected is offline
Slow Typist
 
Join Date: May 26 2009
Posts: 7,157
simplyconnected is on a distinguished road
Default

Nyles, God love you. You are a great help to many on this forum. The picture you posted is a great hellp too. But, until we know what kind of system he has and until he follows the procedure in the Shop Manual we could be guessing until we're blue.

Another 'thing' that happens with (countless) newcomers is, they join, ask a question, then we never hear from them again. Meanwhile, you dig through your references and post great suggestions to help out.

Ray kindly posted for the new man but he may not know how to look up our answers or suggestions. I've found where someone asked the same question on a few sites, which is alright but he may not return here, especially if his problem is solved elsewhere. - Dave
__________________
My latest project:
CLICK HERE to see my custom hydraulic roller 390 FE build.

"We've got to pause and ask ourselves: How much clean air do we need?"
--Lee Iacocca
Reply With Quote
  #8  
Old 06-25-2015, 09:42 AM
Dan Leavens's Avatar
Dan Leavens Dan Leavens is offline
Moderator / Administrator
 
Join Date: Oct 4 2006
Posts: 4,575
Dan Leavens is on a distinguished road
Cool

Ray I agree. The wealth of knowledge that our members continue to share on this site simply amazes me. I too, read all forums and have learned several things about our beloved TBirds and the people that support it. Like I always say, who will listen, this is the best TBird site on the planet
__________________
Dano Calgary,Alberta Canada
Thunderbird Registry
58HT #33317
Reply With Quote
  #9  
Old 06-25-2015, 03:34 PM
Tbird1044 Tbird1044 is offline
Super-Experienced
 
Join Date: Jul 31 2012
Posts: 1,050
Tbird1044 is on a distinguished road
Default

Dave:
No probs as I had the pic saved from a previous post. If he does have p/b, I think you know where I was headed with that one.
Nyles
Reply With Quote
  #10  
Old 06-26-2015, 11:21 AM
mpwhd mpwhd is offline
Newbie
 
Join Date: Jun 23 2015
Posts: 2
mpwhd is on a distinguished road
Default '60 Stop Light Problem

Sorry for not enough info in my first post !! It's power brakes without A/C. Complete system has all new parts except Power Booster. Car has 55K original miles. Thanks, Mike
Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -4. The time now is 04:35 AM.

Driving, racing or working on cars can be hazardous. The procedures and advice on this website including the message board are opinion only. Squarebirds.org and its webmasters and contributors do not guarantee the correctness of the advice and procedures. The Squarebirds.org and its webmasters assume no liability for any damage, fines, punishment, injury or death resulting from following these procedures or advice. If you do not have the skills or tools to repair your car, please consult a professional. By using this site you agree to hold harmless the Squarebirds.org, its authors and its webmasters from any resulting claim and costs that may occur from using the information found on this site.

Powered by vBulletin® Version 3.6.8
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Any submissions to this site and any post on this site becomes property of Squarebirds.org . The webmasters reserve the right to edit and modify any submissions to this site. All material on this is site is copyrighted by the Squarebirds.org. Reproduction by any means other than for personal use is strictly prohibited. Permission to use material on this site can be obtained by contacting the webmasters. Copyright 2002-2016 by Squarebirds.org.