What would be the correct placement of the throttle spring on my '63 30? I can't seem to get the engine to go back to idle unless I push up on the gas pedal. Pics would be great. Many thanks.

Views: 1434

Reply to This

Replies to This Discussion

Do lube the hindge of the gas peddle ,at its base
Floor rust or dirt can be preventing the peddle from moving as freely as it might
Rust buster type spray works and a vacuum
Be sure the flooring is not starting to fail there ,and is still solid
Sure you will have the pictures of the throttle spring you need up soon ,from the boy here

thanks

The throttle return spring attaches to a bracket off the left rear intake bolt as seen below. The spring in the pictures is a stronger than factory spring I had run on mine for some time. I believe I am not running the factory spring that is a bit weaker.  I often see this bracket missing on parts cars that have went through intake replacement and someone forgot to replace the bracket or lost it and have attached the spring to something else. Check to see if you have your return spring setup in this  manner. If you need that bracket, I have a ton of them... for $5 + s/h. I also have an assortment of springs.

Thanks again Jason, I do have the bracket on the intake but the one on the carb is different.

That's an Edelbrock carb you see there so ignore it. On both the Edelbrock, and stock Carter AFB and Rochester 4GC carbs, the throttle rod goes through the throttle plate on side of carb, and the spring simply goes through a hole through the rod. That is there is no additional bracket.

Here is a stock setup on a Carter AFB showing how the return spring looks through the end of the throttle rod where it comes trough the carb throttle plate:

I added those last two pictures to our Carb Help Article at http://6364cadillac.ning.com/profiles/blogs/carburtors-used-in-1963...

Also on AC equipped cars check that the idle speed-up control on right side of carb is working properly. When the AC is on, it shuts off vacuum to the actuator, allowing the plunger to extend out and push the throttle lever causing idle to increase to 900 to 950 rpm (if set to factory specs).   When the AC is off, you should have full vacuum to the actuator pulling it back in. If you simply disconnect that vacuum line it will allow the plunger to push the idle up as if the AC were on. I remember way, way back on a 64 SDV I owned it took me some time to figure out that the AC Speed-up control was making my car idle very fast all the time.  

I have the Rochester carb which also has the TV rod connected to the carb linkage

Make sure the throttle dash pot is not causing the throttle to stay above idle. It may be rusted or not working at all.

ok

RSS

Photos

  • Add Photos
  • View All

Forum

Convertible Top Cylinder Removal

Started by Brian Wiseman in 1963/64 Cadillac Specific Discussion. Last reply by Chris Codd 16 hours ago. 7 Replies

Just wanted to check before removing my 1964 convertible top cylinders.  I have the instructions from the 1964 shop manual.  I have identified, in Red #s, the bolts in the procedure with the images. …Continue

Input appreciated on a transmission issue

Started by Tosh Dickenson in General Discussion. Last reply by Tony and Ginny 429 17 hours ago. 11 Replies

Finally a sunny day to drive the Caddy into work!Alas when I set off down the road, I realized she wasn't shifting from first to any higher range.  I just drove it on Saturday and it was shifting…Continue

Mirror Passenger Side

Started by Bob Ricks in Wanted to Buy. Last reply by Bob Ricks 19 hours ago. 2 Replies

Seeking a Passenger Side Exterior Door Mirror.   Doesn't need to be perfect.1963 Caddy Coupe DevilleContinue

Headliner insulation

Started by Robert Alan Shannon in 1963/64 Cadillac Specific Discussion. Last reply by Robert Alan Shannon 20 hours ago. 4 Replies

 I have a question about the padding  used between the  headliner and  interior roof of hardtops . It's abt 1/8" thick and  I  want to remove this from my parts car because I use it for storage ;…Continue

Tags: padding, Headliner

Blog Posts

Looking for 63 Convertible / Coupe rear side trim

Posted by Gene McIlroy on January 24, 2020 at 12:18pm 0 Comments

Want to find a good straight dent free rear side trim for my 1963 Convertible.  I have both sides but they do not match.  Wanting to get them to match.  I am attaching a photo of the two trim sided that I have really wanting the squared off trim if I can get it.  Let's see what you have,…

Continue

Road Trip

Posted by Ray Schick on January 21, 2020 at 9:00pm 7 Comments

Got a little cabin fever this morning,decided to take a road trip to Hickory Corners Michigan, The Gilmore Museum. It’s about 2 1/2 hours from my home . Place is awesome,I was really impressed.

9A648CFF-E965-4CE0-8E91-8E194AC70DED.jpeg…



Continue

1964 429 Aluminum Front Cover For Sale!

Posted by Jeff Kinzler on January 12, 2020 at 3:30pm 1 Comment

  • I wound up with an extra front cover for my '64 and offering it for sale.

Purchased from a knowledgable part supplier with thorough hands-on knowledge of 63-64 Cadillac engines, who checked the part before sending it to me. The oil pump driven gearSee S bore and the pressure relief piston bore are both .002 over and within the .005…

Continue

Looking for the Rochester Choke Tube ...

Posted by Mack on January 10, 2020 at 1:14am 3 Comments

37E244B6-71C7-4857-8D50-1BD8C48077A4.jpeg

Looking to buy the choke tube for my Rochester... anybody have one for Sale???

Videos

  • Add Videos
  • View All

© 2020   Created by Jason Edge.   Powered by

Badges  |  Report an Issue  |  Terms of Service