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.
  #11  
Old 02-04-2009, 07:25 PM
Richard D. Hord Richard D. Hord is offline
Super-Experienced and Proud Kentuckian who bleeds Ford Blue.
 
Join Date: Dec 16 2008
Posts: 2,868
Richard D. Hord is on a distinguished road
Default Generator light on

I read my shop manual a little more in depth last night, about checking things over and that the voltage regulator may need to be adjusted. I played with her this evening and I think with a little more tinkering I may get the problem taken care of. I got to checking the voltage from the ALT post at the voltage regulator and it was low as some one had stated in a previous thread. I got to tinkering with the contact in the regulator and voltage went up and generator light went out. After you guys post, reading shop manual and thinking about the two together, the voltage system is rather simple. THANKS GUYS!!! I will keep you posted on what I find out. Also if you guys have any other info you would like to share, I would appreciate it.
Reply With Quote
  #12  
Old 02-04-2009, 09:20 PM
JohnG's Avatar
JohnG JohnG is offline
John
 
Join Date: Jul 28 2003
Posts: 2,228
JohnG is on a distinguished road
Default

Having a volt meter in the car that you can watch might be good, at least for awhile. You can see that it neither goes too low or too high. The "too high" part is important so you don't boil the battery dry or burn out bulbs (something like 13.5 volts comes to mind).

SunPro makes a nice one with a white face that you can mount under the dash above your right leg. It's lit so it kind of looks cool at night...

A year or so ago I had a new voltage regulator that did not work. I remembered something an old electrical whiz once told me and ran a business card in between the points. It's worked fine ever since!

John

Last edited by JohnG : 02-04-2009 at 09:28 PM.
Reply With Quote
  #13  
Old 02-06-2009, 11:27 PM
byersmtrco's Avatar
byersmtrco byersmtrco is offline
Administrator
 
Join Date: Sep 28 2004
Posts: 1,610
byersmtrco is on a distinguished road
Default

As I recall, last time I tested mine, it was 13.2 @ idle & 13.8 @ 2500 rpm.
__________________
John Byers
1960 Convertible (Orig owner)
Pic of car with my son Justin (15 Y/O 6'1")
Poss 3rd Gen T/B owner
Reply With Quote
  #14  
Old 02-07-2009, 09:30 AM
JohnG's Avatar
JohnG JohnG is offline
John
 
Join Date: Jul 28 2003
Posts: 2,228
JohnG is on a distinguished road
Default

that sounds pretty good!

The shop manual tells us that the max current actually occurs at only 1225 rpm, realistic for a car not turning high rpm much of the time. (anyone know how fast in Drive you are going at 1225 rpm?). The max current is 30A, which ain't all that bad when you realize it translates into about 375 Watts (not so hot if you put a 500W boom box in your trunk though...)

Interestingly, the voltage regulator is temperature sensitive and purposely allows a higher voltage to be maintained during colder temps.

Also, and I had long forgotten this, there is one coil devoted to disconnecting the generator when the car is not running. This is of note for someone who is finding their battery mysteriously going flat while they are not using the car. This could be one of the causes and would be easily checked by disconnecting that lead to the regulator (to the so-called "cut out relay").

All this stuff is in Part One of Group 7 in the '58 manual.

John
Reply With Quote
  #15  
Old 02-24-2009, 08:48 AM
Richard D. Hord Richard D. Hord is offline
Super-Experienced and Proud Kentuckian who bleeds Ford Blue.
 
Join Date: Dec 16 2008
Posts: 2,868
Richard D. Hord is on a distinguished road
Default Generator light on

After checking a little further. I found the new (or rebuilt) generator was only putting out 3.3 volts. I checked it at the back of the generator at the armature post. I called Thunderbird Headquarters and they said to send it back. I did got the new one (or rebuilt), installed it, light still on check volts at back of generator again and only 2.3 volts. When I race engine gen light will get dim but not go out. Does anyone know for sure how much voltage should be at that point on generator, before I call these people back? And would I be better off to install alternator instead?
Reply With Quote
  #16  
Old 02-24-2009, 10:04 AM
JohnG's Avatar
JohnG JohnG is offline
John
 
Join Date: Jul 28 2003
Posts: 2,228
JohnG is on a distinguished road
Default

Two suggestions:

1) get the Shop Manual out

2) look in the Yellow Pages in your area. Find a place under "automotive electric" or something similar. Take both the generator and the voltage regulator to them and ask them to check them out thoroughly. They work as a tandem. This is good money spent and you will be able to put the problem behind you.

john
Reply With Quote
  #17  
Old 02-24-2009, 12:51 PM
Howard Prout's Avatar
Howard Prout Howard Prout is offline
Tinkerer
 
Join Date: Feb 11 2009
Posts: 435
Howard Prout is on a distinguished road
Default

The "Gen" light on my '59 has always had a dim glow, but only visible at night. I haven't tried the fixes mentioned in previous posts, but it hasn't caused me a problem. I am attaching a couple of photos of my gauge readings, one at fast idle (because the car was very cold) and the other at 2000 rpm.
Attached Images
File Type: jpg Electric Gauges @ idle 640px.jpg (60.7 KB, 74 views)
File Type: jpg Electric Gauges @ 2000 rpm 640px.jpg (66.0 KB, 74 views)
__________________
"Old Betsy" - my '59 convertible J9YJ116209 Thunderbird Registry #33341
Reply With Quote
  #18  
Old 02-24-2009, 06:50 PM
tbirds8 tbirds8 is offline
Super-Experienced
 
Join Date: Nov 6 2006
Posts: 907
tbirds8 is on a distinguished road
Default

Those gauges look right on the money to me. And that's great with a gen.
Reply With Quote
  #19  
Old 02-25-2009, 12:04 AM
YellowRose's Avatar
YellowRose YellowRose is offline
Super-Experienced and a HELLOFA nice guy
 
Join Date: Jan 21 2008
Posts: 11,819
YellowRose is on a distinguished road
Default Generator Woes !!!

In answer to your question about whether or not you would be better off with an alternator, in my opinion, you would be. However, if you want to keep the car original, the answer would be no. If you want to do what I have done with my Tbird, make it a better running car then it used to be, then go for it.

However, in converting from a generator to an alternator, you are going to have to either modify the generator mounting bracket to accommodate the alternator, or find an alternator bracket that will bolt up to your engine. We went the modify the generator bracket route. That meant changing the belt out also. It took awhile to get the bracket modified and mounted right, but it has been working well ever since.
__________________

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
  #20  
Old 02-25-2009, 04:05 PM
Petrolhead Petrolhead is offline
Experienced
 
Join Date: Jul 2 2007
Posts: 403
Petrolhead is on a distinguished road
Default

Thanks Ray, that's good advice

I've been driving my '62 a bit over the last week without too much trouble, but yesterday I had the stereo going, air, and had been playing with air bags a bit so the two compressors were running intermittently. This flattened my battery to the extent that car stalled in traffic, and wouldn't restart due to a totally flat (brand new) battery.

The gen light glows faintly at idle, but is fine the rest of the time - I believe that it simply can't keep up with the draw of the extra electronics.

I'll check out the voltage regulator/generator as posted on this forum, but gut feeling is I need an alternator and originality isn't an issue. I'll let you know how it goes.

Cheers

Alistair
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 08:59 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.