Anybody else have a problem with your gas tank overfilling then draining out the overflow?  I've done the service bulletin with relocating the vent and drilling the hole in the top.

Every so often when I fill the tank it seems to overfill before the pump shuts off.  Like today, the pump shut off and there was no fuel running out the vent.  Drove a mile or two down the road and parked on the street with one side a but lower on the curb side and fuel is running out the vent.

Also the garage smells like fuel.  Anybody tried putting a charcoal filter over the vent or anything?

I try to avoid gas stations with fast pumps because that makes overfilling too easy.

Views: 24

Reply to This

Replies to This Discussion

If you already replaced the hose for the overflow vent and it is sound

I would extend that hose as to raise the vent tube  up some so it is placed a bit higher than it’s current location so the additional height will  prevents fuel from leaking out as the vent will  now be  up higher and over the fuel level in the tank when the tank is full 

I had exactly the same problem  with the smell issue and when I viewed the overflow vent hose( rubber part )  from under the car it looked good 

I only found the damage to the hose when I removed the hose and that was a  very big surprise  to me but solved my smell issues 

Enjoy 

So are you saying to remove that short chunk of hose coming out of tank (about 3") that attaches the vent and extend it?  I think the vent pipe is as high up against the floorboard as I can get it.  I will replace the hose just to be safe.

Thanks!

Yes 

Remove the vent tube and the rubber hose and inspect the rubber hose for damage -  Could be dry and cracked ( that was my problem and fix )

Do replace the rubber hose for ethanol fuel from the gas tank to the carb 

Do get the vent tube up as high as is possible where it is located if it means making the rubber hose a bit longer if necessary 


The higher you can get the vent tube over the top of the tank the less chance of it leaking fuel out of the tank when full 

Best to do with a half tank or less of fuel to not be loosing any fuel when jacking the rear of the car up that changes the angle of the gas in the tank towards the rear of the tank 

Enjoy 

RSS

Photos

  • Add Photos
  • View All

Forum

Fuel gauge access

Started by Tosh Dickenson in 1963/64 Cadillac Specific Discussion. Last reply by Tosh Dickenson 4 hours ago. 2 Replies

Do I really have to remove the dash pad to access the back of the instrument panel..specifically the fuel gauge.  1964 DevilleContinue

Convertible Top Pump Leak

Started by Lee Martin in 1963/64 Cadillac Specific Discussion. Last reply by Lee Martin 10 hours ago. 5 Replies

Does anyone have experience with leaky pump or connections to pump?  I have a slow one and it's driving me crazy trying to see where the fluid is coming out.  It is definitely from the pump area (not…Continue

Fuel Gage

Started by Dominic Salemi in General Discussion. Last reply by Dominic Salemi 10 hours ago. 5 Replies

Any help on this 1964 Cadillac. My fuel gage is pegged over the full line. Is there a way I can tell without pulling everything apart to figure out if it is the gage or fuel unit. I disconnected the…Continue

ONLINE SERVICE MANUAL

Started by Kim K Kaiser in 1963/64 Cadillac Specific Discussion. Last reply by Jason Edge 16 hours ago. 2 Replies

I dont know if anyone has posted this, I stumbled on it and found most of the manual as a pdf.  kind of handy when i downloaded it onto the phone and am under car..anyway, here are the links that i…Continue

Blog Posts

63 Caddy Horn

Posted by Robert Alan Shannon on May 27, 2020 at 9:25am 10 Comments

 Just noticed a 1963  Caddy trumpet horn on Ebay. No part # given but some of his other items are 1963 specific, just throwin this out there, I have no connection to this listing .

Wiring connection help.

Posted by Jimmy Davis on May 24, 2020 at 9:15pm 2 Comments

Can someone help me figure where these connections go? I have a 64 60 special if it matters.…



Continue

Wood grain finally done.

Posted by Jimmy Davis on May 20, 2020 at 4:57pm 3 Comments

After years of wanting to, I finally redid my wood dash paneling on my 64 60s. Not too hard to do either.…

Continue

390 engine replacement needed

Posted by Jason on May 18, 2020 at 7:54pm 1 Comment

I’m looking for a 1963 Cadillac 390 engine that runs. 

Videos

  • Add Videos
  • View All

© 2020   Created by Jason Edge.   Powered by

Badges  |  Report an Issue  |  Terms of Service