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 08-28-2013, 04:38 PM
bearbowman bearbowman is offline
Newbie
 
Join Date: Aug 28 2013
Posts: 1
bearbowman is on a distinguished road
Default 63 T-Bird engine problem

I have a 63 hardtop with an edelbrock carb. I had a tune up done and the car starts perfectly and runs great, after 20 minutes or so the car shuts down and won't start like starving for gas. When car cools down she starts perfectly again!! Brought it to a mechanic he advise to buy new carb said gas dumping into carb. Spoke to another mechanic he advise to change points and gas pump? Has anyone else had a similar problem and if so what remedy worked? Thanks
Reply With Quote
  #2  
Old 08-28-2013, 04:41 PM
jopizz's Avatar
jopizz jopizz is offline
Excellent Auto Mechanic for over 40 years.
 
Join Date: Nov 23 2009
Posts: 4,749
jopizz is on a distinguished road
Default

Are you sure that the choke is opening up all the way. If it's an Edelbrock it should have an electric choke rather than the heat activated choke that the Ford carburetor had.

John
__________________
John Pizzi - Squarebirds Administrator
1959 Convertible

Thunderbird Registry #36223
jopizz@verizon.net 856-779-9695

http://www.squarebirds.org/picture_gallery/TechnicalResourceLibrary/trl.htm
Reply With Quote
  #3  
Old 08-29-2013, 02:14 AM
simplyconnected's Avatar
simplyconnected simplyconnected is offline
Slow Typist
 
Join Date: May 26 2009
Posts: 7,068
simplyconnected is on a distinguished road
Default

Raymond, these engines are very easy to troubleshoot. There are no sensors that will stop the engine from working.

So, let's take this one step at a time...
Fire needs three elements; heat (spark), air, and fuel.

After prolonged cranking can you smell raw gasoline? (Can you see gas squirting down the carb when you manually pull the throttle lever back?) Are the spark plugs showing a pretty blue spark? I assume your air cleaner is clean.

Now, you have to go to work and supply us with more information before we can suggest different causes. I would like to know what the TEMP gauge reads when the engine stops. - 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
  #4  
Old 08-29-2013, 08:22 AM
Yadkin Yadkin is offline
Banned
 
Join Date: Aug 11 2012
Posts: 1,910
Yadkin is on a distinguished road
Default

Unless they are at least 55 years old, stop talking to a mechanic about carburetors.

The choke would be my first guess. It probably isn't opening.

These things are easy to adjust, re-build, and fix. Get yourself a repair sheet from Mr. Edelbrock.
Reply With Quote
  #5  
Old 08-29-2013, 08:56 AM
Joe Johnston Joe Johnston is offline
Super-Experienced
 
Join Date: Dec 23 2008
Posts: 661
Joe Johnston is on a distinguished road
Default

A friend has 2 signs in his shop - one each on opposite walls of his shop office.

#1 - 95% of the time, problems thought to be fuel related are electrical issues.

#2 - 95% of the time, problems thought to be electrical related are fuel issues.

I agree this sounds fuel related, but don't rule out a coil or condenser breaking down from normal heat buildup. Even though you just had a tune-up, the possibility exists you have a defective condenser (assuming you still have points and condenser ignition).

A bit of methodical investigating should lead you to the source of the problem before just buying a lot of new parts to put on it.
Reply With Quote
  #6  
Old 08-29-2013, 04:57 PM
simplyconnected's Avatar
simplyconnected simplyconnected is offline
Slow Typist
 
Join Date: May 26 2009
Posts: 7,068
simplyconnected is on a distinguished road
Default

Quote:
Originally Posted by Joe Johnston View Post
...A bit of methodical investigating should lead you to the source of the problem before just buying a lot of new parts to put on it.
That's why we need accurate feedback before we can continue.

"It could be..." covers a host of possibilities but good troubleshooting separates Mechanics from Parts Changers. Both may end up with good results but Parts Changers usually cost more because they end up with a basket full of good parts they cannot use.

Gentlemen, what carb causes an engine to shut down after 20 min? And, what choke closes up when hot???
Quote:
Originally Posted by bearbowman View Post
...the car starts perfectly and runs great, after 20 minutes or so the car shuts down and won't start like starving for gas. When car cools down she starts perfectly again!!..
- 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
  #7  
Old 08-29-2013, 05:13 PM
jopizz's Avatar
jopizz jopizz is offline
Excellent Auto Mechanic for over 40 years.
 
Join Date: Nov 23 2009
Posts: 4,749
jopizz is on a distinguished road
Default

Quote:
Originally Posted by simplyconnected View Post

Gentlemen, what carb causes an engine to shut down after 20 min? And, what choke closes up when hot???
- Dave
A car that has an electric choke that has no power will shut down as the engine warms up and will not start with a choke that's closed until it cools off. That's my personal experience with electric chokes.

John
__________________
John Pizzi - Squarebirds Administrator
1959 Convertible

Thunderbird Registry #36223
jopizz@verizon.net 856-779-9695

http://www.squarebirds.org/picture_gallery/TechnicalResourceLibrary/trl.htm
Reply With Quote
  #8  
Old 08-29-2013, 08:45 PM
Yadkin Yadkin is offline
Banned
 
Join Date: Aug 11 2012
Posts: 1,910
Yadkin is on a distinguished road
Default

John's guess is my guess as well.

Bearbowman, an electric choke has a heater in it that warms up a metal coil. As the coil expands it turns the choke plate. These cars did not come with these, so you should have a retrofit electrical connection somewhere. The circuit should be switched on with ignition so it comes on with start up, and stays on until you stop the engine (double check this with Mr. Edlebrock).

I don't know how many amps the choke uses, but I'm guessing it's substantial, and therefore shouldn't just be wired into to the ignition circuit. Instead it should be wired to a relay powered by the battery circuit, and the relay switched on by the ignition circuit. If you tie into the positive battery cable, be sure to put a fuse in that line.

The guy that tossed your old 4100 because he couldn't figure how to rebuild it probably didn't think through this minor electrical issue either.
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 03:11 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.