how do you install a new choke tube in manifold where can I get one, or do you make one,.How do you get old one out. I'm aware of twisted heat piece in manifold. Any help appreciated.

Views: 1175

Reply to This

Replies to This Discussion

Nice illustrations. Added to Help page under - Intake Manifold - Choke Tube Replacement

Jason i accidentally deleted this while viewing it on my smart phone at night. Is there a way to restore the pictures?

Jeff, No there is no way I can restore once you have deleted. Why not post another stand alone article and we can link to it instead of a reply within the article. Be sure to group all pictures together in the main post. The only other things I would add would be your source for the stainless tube and the dimensions. I bought like a 3' section of it off eBay way back but cannot find the info or dimension specs.  There are also a couple of grades of stainless, one is more corrosion resistant and that would be good info to post also.  We can also run it in the next newsletter under Tech Tips. So... please repost while still fresh up in the grey matter... and stay away from that delete button!

hi, I'd be very interested in your step-by-step on replacing that internal heat tube.  did you ever restore the pictures that you deleted?  thanks, Nile

A slightly better picture of the finished installation.

So when your done you should see the choke tube like in this pic ?

The choke tube should be visible and with no cracks.  I pressure check mine when I take an intake off.  Fire up the compressor and put the rubber nipple to the blower on one end, and plug the other with my finger. You will hear a leak in the tube if it is cracked.  After 50 years, it is just best to replace the choke tube.

This first picture shows the old cracked tube inside the manifold passageway. The last picture (bottom) shows the new tube in the same location.
The twist baffle sits inside the tube and creates air flow turbulence to increase efficiency of heat transfer. Once you start to drill out the old tube the baffle should slide out but it may be stuck with csrbn deposits hence the liberal use of penetrating oil.

The main reason to replace is to prevent an unferhood fire from hot exhaust gas getting into the carburetor housing.
Thank you Jeff, I am suspicious that mine is leaking because I replace my intake manifold gasket and I'm still hearing a leak when accelerating
My manifold also had the beginning of a hairline crack underneath so I decided to replace it and wound up doing this job twice!
In fact if look at the first (top) picture you can see this hairline just below the manifold heat passage opening.

Couldn't tell if it was a casting mark or impending fracture so decided to replace.



  • Add Photos
  • View All


vacuum canister

Started by Walt Timmerman in General Discussion. Last reply by Rob Shatsnider 46 minutes ago. 15 Replies

what is the vacuum canister for that is behind the drivers front fender?After removing my fender I see its got a hole in the top but nothing is hooked to it and no line is laying there.Any help would…Continue

New Batch of Embroidered Iron-On 1963/64 Cadillac Chapter Patches - $4 each

Started by Jason Edge in Chapter Discussion. Last reply by mark zimmerman 5 hours ago. 10 Replies

As noted in our August 1963/64 Cadillac Chapter Newsletter:Around 6 years…Continue

Tags: Available, Patches, Chapter, Cadillac, 1963/64

63 coupedebille fuel pump issues

Started by Daniel Grande in 1963/64 Cadillac Specific Discussion. Last reply by Daniel Grande 14 hours ago. 9 Replies

I have a 63 cadillac and I took it to a mechanic for a motor tune up long story short the fuel pump gave out and hes tried twice to order it and he says it didnt fit the original pump is smaller on…Continue

64 deville choke heat tube

Started by Thomas Yarri in 1963/64 Cadillac Specific Discussion. Last reply by Thomas Yarri 15 hours ago. 2 Replies

Hey guys hope you’re having a great day. I have a question about the choke heater tube. Mine is loose at the intake and seems to be causing a vacuum leak. Any thoughts on how to seal this up?

Blog Posts

New vehicle in the club

Posted by Patrick Westphal on June 17, 2021 at 4:00pm 1 Comment

I was successful in getting a vehicle from the New York contact I talked about at the last club meeting. I am still trying to figure out how to post a picture of the vehicle that is tied with this comment so if you see a random picture of a black convertible in a yard, that's me haha.  …


Torque converter grab when idling in Drive

Posted by Cliff Johnston on June 14, 2021 at 8:47pm 2 Comments

Hi Everyone, been quite a while since i have been on here.

I have had an issue with the idle on my 64 Coupe Deville ever since i have had it.

With the Idle set high enough that it is smooth, but still a nice idle, the RPM seems only slightly too high for the stall of the Torque Converter. And therefore it tends to sit there and grab and lunge a bit. So until now, i have been putting the car in Neutral at the lights to stop this happening.

I've had the car dyno tuned and…


Can you help? Driveshaft Question....

Posted by Chris on May 30, 2021 at 8:55am 1 Comment


Newbie to the group here - we have already found tons of invaluable information on the board, so thanks! We are restoring a 1963 Series 62 Convertible. We are wondering if anyone knows of a source to buy the propellor yoke flange (that bolts to the pinion flange) for the driveshaft? One of our ears partially broke off. Not sure if we can buy just the yoke flange as an aftermarket part, or if it has to be rebuilt by a welder/fab guy? Maybe a salvage yard for a source? Again, any…


Thank you Kurt re: VIN location

Posted by Robert Pellow on April 19, 2021 at 1:07pm 0 Comments

I just wanted to say a thank you to Kurt for steering me to the tech tips page on V.I.N. locations.  Excellent information.  Thanks a bundle.

Robert Pellow


  • Add Videos
  • View All

© 2021   Created by Jason Edge.   Powered by

Badges  |  Report an Issue  |  Terms of Service