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.
  #21  
Old 01-05-2013, 07:42 PM
KULTULZ
 
Posts: n/a
Post

Quote:
Originally Posted by davidmij View Post

So, I changed out the top plate on my carb and YEEHAW, the secondaries open. I floored it in 1st gear and right about 3500 rpm I could feel them kick in. I pulled over and checked the grease blob trick and sure enough there was grease on the actuator arm.

Another thing I notice is it really pops and growls when I down shift - you know the sound, like little backfires. Is that probably caused by running too rich, or could it just be because of the little glass pack mufflers?

Hopefully tomorrow I will get warmer weather and I can go through adjustments and timing for a good hour and get it just right.

thx again, Dave J
It is normal for it to pop when gearing down (no fuel pressure applied) as the mixture is overly rich and is being fired late and maybe entering the exhaust system. Remember the NASCAR cars when backing out of the throttle and flames being shot?

It may be overly rich and the mufflers don't help much either... Have you done a spark plug reading?

As for the secondary check ball, it may not have been used on all models. You need the CARB I.D. NO and cross it to the MPC under Basic PN 9576. I would imagine most fall out at dis-assembly unnoticed.
Reply With Quote
  #22  
Old 01-06-2013, 02:13 AM
YellowRose's Avatar
YellowRose YellowRose is offline
Super-Experienced and a HELLOFA nice guy
 
Join Date: Jan 21 2008
Posts: 11,895
YellowRose is on a distinguished road
Default 4100 autolite help

Thanks to the posting by David ~ davidmij on the Autolite 4100 video by Mike's Carburetors, there are now 6 of his videos posted in the Technical Resource Library (TRL). Including the one on how to download the Autolite 4100 4 Barrel Carburetor Manual. Check them out in the Carburetor section. The TRL link is always part of my signature element. Just click on the link! Thanks, David!
__________________

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
  #23  
Old 01-06-2013, 11:19 AM
davidmij davidmij is offline
Super-Experienced
 
Join Date: Jan 17 2011
Posts: 660
davidmij is on a distinguished road
Default

No problem Ray, thx for organizing it, and making it easy to get to. I just saved that manual, it will come in handy.

Gary, it also pops just a little while idling once it's warmed up. Is that normal, or should I work on adjusting the mixture a little more lean?

Dave J
Reply With Quote
  #24  
Old 01-26-2013, 04:08 AM
KULTULZ
 
Posts: n/a
Unhappy

Quote:
Originally Posted by davidmij View Post

Gary, it also pops just a little while idling once it's warmed up. Is that normal, or should I work on adjusting the mixture a little more lean?

Dave J
I'm sorry Dave, I did not notice your post.

The occasional misfire may be due to the mechanical choke (your fully opening it too soon). Apply it very lightly during cold idle and see if the idle improves. The choke has to maintain a rich mixture until the heat riser feature takes over. A properly adjusted auto choke does this automatically.

I am also sending Ray a photo (within Shop Manual) showing secondary check valve (ball).

...mmm...

Let me try it this way-

http://www.tocmp.com/manuals/Ford/19...ice/index.html

Go To Page 2-61
Reply With Quote
  #25  
Old 01-26-2013, 11:06 AM
davidmij davidmij is offline
Super-Experienced
 
Join Date: Jan 17 2011
Posts: 660
davidmij is on a distinguished road
Default

Funny that you just posted this Gary. Just yesterday I went through the adjustments again. I didn't have a tachometer before and I realized I hadn't set the timing since installing it. I got the car good and warm, adjusted my idle to just above 600 rpm and reset the timing to about 8 or 9 degrees. (It was around 6 before) I them reconnected the vacuum advance line and adjusted the jets. Took it for a spin and it did much better. Still pops and growls when down shifting, especially when rolling down hill, but not so much while idling.

I'll tweak the jets some more today and see if I can get it even better. The choke seems pretty good now.

My carb is supposedly from a 68, and the old one was from a 67 LTD. I'm guessing the check ball, (and a few other things) changed over the years.

regards, Dave J
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 06:24 PM.

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.