When I drive my 63 after about a hour it will shut of and the gas bowl will be somewhat empty and the car will not start until cools down. I have changed the fuel pump and remove the Thermostat. Changed the coil and condenser. I have asked around and people tell me so much things that my head is spinning. They said my gas may be vaporizing or it may be electrical or something in the tank. Any suggestion. I left a message AAron JHONSTON and TONY AND GINN 429 I sent you guys messages in your inbox for you guys could contact me I saw you guys commenting on this earlier or you guys could call me at 786-314-1360 I would truly appreciate it

Views: 250

Comment

You need to be a member of 63/64 Cadillac Website to add comments!

Join 63/64 Cadillac Website

Comment by Tony and Ginny 429 on July 18, 2013 at 10:09pm
Looks like slowly we are getting to the bottom of James and Aaron's difficult problem to diagnose
As the problem is unique to the 63-64 engines intake manifold design
James feed back should help confirm the issue they may both be having
Comment by Aaron Johnston on July 18, 2013 at 8:32pm
I called him today to tell him what was going on with mine, sounded like he may be having the same problems? Advised him to pull the intake for inspection
Comment by Tony and Ginny 429 on July 18, 2013 at 3:13pm

James

If you are watching this site ,you will see that one of the people on here has just found a tube in his intake manifold broken ( the choke tube ), causing his intake manifold to get very hot ,and preventing his carb from working as it should, as the tube is a direct connection to the very hot exhaust gases in the exhaust manifold

This heat build up will evaporate the gas in the carb ,once it gets hot enough

A strong possibility you are having the same issue ,as your cars carb  will take about a half hour to get hot enough ,and cause the car to stop running as it should, until the carb gets a chance to cool down again, hold fuel as it should ,and start again

The 390 and 429 motors hold heat for very long periods of time before they will cool down ,unlike many other cars made,which adds to the problem you are having regardng getting it started again

If the car stops after a half hour again , do what you can to see if your intake manifold is very very hot ,that would be a good clue

Do not burn yourself, could be 4-500 degrees, as it is 3-350 degrees when working correctly

This item gives many here problems as the cars are old ,and this  design does not hold up in many cases due to age and wear

Comment by Jason Edge on July 13, 2013 at 5:39pm

Tony could be on to something about the heat riser. Aaron, had posted about their intake heating up to 500 degrees and vaporizing the gas. He was going to check the heatriser and get back with us but never did (I will reply on that thread also)..

Anyway, check to make sure it is opening up. If it is stuck closed almost ALL Left/driver side fire hot exhaust gas will continue to push across the intake causing the intake to over heat.

Here is a link to a picture showing the heat riser open and some discussion below:

http://6364cadillac.ning.com/profiles/blogs/heat-riser

Here is the other message thread from Aaron:

http://6364cadillac.ning.com/profiles/blogs/advise-please-intake-ho...

Comment by Tony and Ginny 429 on July 13, 2013 at 4:01pm
Feels like something is heating up and stopping the car after the half hour interval
Do you know if you have the correct gaskets and the spacer under your carb ,that s/b there depending on the carb you have
If the issue was fuel only the car would not run for the half hour interval ,over and over as it is
Comment by Tony and Ginny 429 on July 13, 2013 at 3:48pm
Could this be a stuck closedv exhaust heat riser , getting the carb so warm the fuel is evaporating ?
This was just suggested a short time ago on another post --I think
Comment by Tony and Ginny 429 on July 13, 2013 at 3:27pm
Do not disregard the fellow in the last post that said ,he had the problem and it was more a ground strap problem for him, that he solved
Comment by Russ Austin on July 13, 2013 at 1:41pm

The empty fuel bolw is the sign of fuel problems. As listed above, start at the gas tank.   Change the sending unit filter, clean out the tank, and make sure the vent tube is not blocked.  Change all the rubber fuel lines.

Flush out the main fuel line(s) with compressed air.

The new fuel pumps comming out are getting a bad rep for the rubber diaphrams going bad quickly.

If after you do all that, and it still stalls, replace the fuel pump again, as its whats bad.  I am in the process of installing an electric fuel pump. I'm tired of playing the fuel pump game.  

Comment by Jason Edge on July 13, 2013 at 6:05am

Just a tip on the website, if you click on someone's name it shows their last few posts, replies, etc. The Ning site is much more interactive and intuitive than the old MSN and Yahoo sites. I'm still finding features where I say to myself "Cool!".  I clicked on James' name and "latest activity" showed this post, the previous "wiring" post, and the 'Car Trouble" post.  I actually use it to find stuff I've posted myself all the time! LOL 

Also, as a general note, typed words can sometimes seem cold and harsh. I know I'm probably more guilty of this than anyone, but  we are all here to help each other. I get tons of praise for the incredible amount of support 63 & 64 owners get at our site, so do appreciate everyone keeping everything civil and encourage everyone to learn more about these cars in a positive helpful manner.

Comment by David Thomas on July 12, 2013 at 4:12pm

James, I don't remember your original post as Tony refers to, so I don't know what has been suggested so far.

From your description in this post, I would drain the fuel tank and drop it from the car for inspection to see if it is full of rust scale or dirt. Pull the sending unit from the top and inspect the pick up tube and filter to be sure they are clear and serviceable, it wouldn't hurt to replace the filter while you have it out.

Before you pull the tank, if you can, rig a 5 gallon can of fuel safely in the car, run a pick up tube from the fuel pump to it. Take the car for a drive to see if the symptom repeats itself. If it does not, your problem is in the fuel line to the tank or debris in the tank. One other possibility would be a clogged tank vent. You can check this by crawling under the rear drivers side of the car to inspect the vent tube at the front of the tank. Put a piece of hose over the vent tube and blow air into the tank to see if it is open. If it is not open your fuel pump will eventually draw a vacuum on the tank and fuel will not flow. Another way to check this would be to remove the gas cap when the engine stalls. If you hear a rush of air entering the tank, the vent is stopped up.

HTH, David

Photos

  • Add Photos
  • View All

Forum

Trivia Question 17 - Item You COULD NOT Delete Because of Cars Heater

Started by Jason Edge in Trivia. Last reply by Tony and Ginny 429 5 hours ago. 6 Replies

OK. We had so much fun with the last Trivia regarding the car's heater, I thought we should post another heater related question.  So here goes:What item does the spec manual go out of its way to…Continue

Tags: Question, Trivia

Good Sources for Parts?

Started by Bob Ricks in 1963/64 Cadillac Specific Discussion. Last reply by Russ Austin 11 hours ago. 1 Reply

New member here so be patient with me.  New owner of what I would consider a rat-rod 63 caddy.  Previous owner painted everything flat black, in an obvious attempt in covering up body deficiencies. …Continue

Trivia Question 16 - Standard Item You could Delete for Reduced Cost?

Started by Jason Edge in Trivia. Last reply by Tony and Ginny 429 17 hours ago. 21 Replies

OK. Here's a new trivia. There is at least one main standard (non-option) item that one could "delete" on a new 1963 or 1964 Cadillac for a reduced cost.  What is it?  For extra cigars, what is the…Continue

Custom '64 Eldorado on Bitchin' Rides Last Night

Started by Ian Osborne in 1963/64 Cadillac Specific Discussion. Last reply by Cees de Bunje yesterday. 1 Reply

If anyone here is familiar with the show "Bitchin' Rides" they started work on a '64 Eldo on the episode that aired last night (12/5). I really like the show and they build some amazing custom…Continue

Blog Posts

still need a driveshaft

Posted by wayne weaver on November 26, 2019 at 11:53am 2 Comments

well thank you UPS for losing the driveshaft that Russ Austin shipped me. 

however i still need a rear driveshaft section for my 63. mine has a vibration due to the bushing inside of it. its a shame because the ball and sockets in the cardian joints are perfect but it has a woble on the balancing machine. so .  still need the rear section. anyone have a good one ? is there driveshaft alternatives to use ? i am really considering an LS swap and since im fighting the driveshaft search…

Continue

63 guidematic issues

Posted by maurice lapoiinte on November 24, 2019 at 3:10pm 0 Comments

 So my 63 guide matic headlamps stay on low beam all the time. I have so far bypassed the system and everything works normal. I have been thru the trouble shooting in the manual but this is where the confusion begins.on my car when the power relay is powered I have low beam and when its not powered I have highbeam, this appears to be opposite what the diagnosis says should be correct.The wiring is all original and no wires have been mixed up.has anyone ever unplugged the 2 wire connector…

Continue

Another advantage of the Pertronix III

Posted by Doug Scarrow on November 23, 2019 at 11:12am 1 Comment

   Having tried both the II and III I can say the multispark feature of the III offers a smoother idle . It is also easier to install .Does not require removal of the distributor

Stuck at two red (dash) lights!

Posted by Jeff Kinzler on November 3, 2019 at 10:00pm 9 Comments

I hope someone can help solve these two electrical problems that appeared one after the other.

By way of background: The car, a '64 Eldorado has very limited use. It was at a restoration shop for 15 months until last January-  that supposedly did a bunch of wiring repairs including rebuilding the gas gauge that still hasn't worked properly, and the clock that hasn't worked, and re-soldering the broken wires in the drive door. All window and seat controls appear to be…

Continue

Videos

  • Add Videos
  • View All

© 2019   Created by Jason Edge.   Powered by

Badges  |  Report an Issue  |  Terms of Service