AFB Adjustment
Greetings everyone and Happy Easter to all! I finally got the rebuilt heads on my 63. Thanks Jason for the heads and Jason and Russ for the head bolts. I started her yesterday and went for a nice cruise today. Man, this ole' girl knows how to scoot! Now I have a carb question. I found several issues with carb and intake gaskets during the teardown that indicated why the engine was running lean. Now that everything has been corrected I am getting a very slight black smoke from the tail pipes at idle with the mixture screws closed completely. I set the timing and idle speed to factory specs with the vacuum line disconnected. Before the heads were replaced the mixture screws were turned out about 1 1/2 turns each. From the part # on my carb it is from a 65 429. Could that be the problem? I have a 600 cfm Edelbrock carb that I considered using but am not sure how to make it work the throttle and Jetaway linkage. Any reputable carb rebuilders out there? I have watched many videos from Carburetors and More but their reviews do not speak highly. Thanks to all.
Replies to This Discussion
-
Permalink Reply by John Cason Fudala on
-
Ok, I just had a brainstorm thought. I did replace the original phenolic carp spacer with a reproduction unit from OPGI. The 3/8" connection on the original for the PCV connection had a very large hole for the vacuum inlet. The aftermarket spacer had a very small hole, about 1/8" ID but still accepted the 3/8" ID hose. Maybe, just maybe, I am not drawing enough air through the PCV Valve which would cause the slight overly rich mixture. Hmm, I have a plan. I will repost after I do some further testing. Stay tuned boys and girls. Happy Easter to all!
-
-
The carter adjustments are 3 turns for the air mixture screw, a 1 1/2 for the idle mixture screws.
The car should stall out with the fuel mixture screws turned in. That is telling me you have a vacuum leak somewhere. As Tony mentioned, are you capping the vac line to the distrib?
Turning the air mix screw out is going to lean out the fuel mixture. It is difficult for me to get the mixture correct, so I installed a air/fuel mixture monitor to get it spot on.
Members
Forum
1963/64 Cadillac Chapter March 2025 Newsletter Posted
Started by Jason Edge in Newsletters. Last reply by Matti Roth on Monday. 2 Replies 0 Likes
I have just completed and posted the March 2025, 1963/64 Cadillac Chapter Newsletter to our…Continue
Dino Diaries - Feb 28, 2025: What's Good for the Convertible is Good for the Coupe!
Started by Jason Edge in General Discussion. Last reply by Jason Edge on Monday. 6 Replies 1 Like
I have made some "factory" upgrades to my 64 Coupe de Ville by installing some options available to my Coupe de Ville such as power vent windows, tilt steering column, am/fm, 3 way rearview mirror,…Continue
Sabre Spoke Wheels
Started by Alan Grst in 1963/64 Cadillac Specific Discussion Feb 28. 0 Replies 0 Likes
Greetings, I have a set of Kelsy Hayes Sabre Wheels # 38612. Will these fit my '64 sedan? Do I need to make any modifications?Thanks!AlanContinue
Blog Posts
New old stock seat material
Posted by Ray Schick on August 22, 2024 at 6:25pm 2 Comments 0 Likes
I bought this seat material thinking that it’s…
Loud air moving sound within carb with cleaner removed
Posted by Dave Fehrle on March 23, 2024 at 3:23pm 8 Comments 1 Like
While checking my Carter carb with engine running, I took the air cleaner off and there was a very loud hissing sound of air. I placed a piece of paper over the carb and it didn’t move up or down, is this normal?
Vintage Air AC
Posted by Chase on March 21, 2024 at 5:55am 0 Comments 1 Like
Hey everyone, has anybody done a Vintage Air AC/Heat setup in their car? I want to bypass the old vacuum setup and go with a Vintage Air Gen 2 model. Before I get started, does anyone have any experience with this? (Which model to go with, do’s and dont’s, etc.) It looks pretty involved. Any and all info/pics would be greatly appreciated. Thanks!
Events
© 2025 Created by Jason Edge.
Powered by
