Leaking Fuel Tank
Thread Starter
Intermediate
Joined: Jun 2003
Posts: 40
Likes: 0
From: Long Beach Mississippi
Leaking Fuel Tank
I have a 73 copue that has a leaking gas tank. I was wondering if anyone has tried using any of the gas tank sealer kits with any success? Or would I be better off just getting a new tank?
Melting Slicks
Joined: Nov 2003
Posts: 2,362
Likes: 1
From: San Antonio TX
If the tank itself has a leak I would not mess with it just purchase a brand new one. A good company is quantaproducts.com
Good people to deal with. I purchased mine from them as well for my 73.
Good people to deal with. I purchased mine from them as well for my 73.
Race Director
Joined: Nov 1999
Posts: 10,643
Likes: 8
From: Foxfield CO 1970 Convertible
The POR gas tank sealer is excellent!
That said, since a new tank is only $199, and you have to remove it to put the sealer in it. It's your decision whether to repair or replace...
That said, since a new tank is only $199, and you have to remove it to put the sealer in it. It's your decision whether to repair or replace...
Drifting
Joined: Dec 2004
Posts: 1,714
Likes: 42
From: Austin Texas
i used the por-15 kit on mine but didnt have any holes. the tech guys at por-15 can give you tips on filling the small holes with their products.
the kit is around $50. i covered the tank straps with a bicycle tube. check out my pics if you are interested. it seems to work pretty good and i feel it should prevent any damage from the straps contacting the tank.
____________________
Corvette Lover and Supporter of Senior Home Care in Austin
the kit is around $50. i covered the tank straps with a bicycle tube. check out my pics if you are interested. it seems to work pretty good and i feel it should prevent any damage from the straps contacting the tank.
____________________
Corvette Lover and Supporter of Senior Home Care in Austin
Last edited by johnt365; Dec 7, 2010 at 06:25 AM.
Melting Slicks
Joined: Feb 2003
Posts: 2,529
Likes: 27
From: Auburndale Florida
2025 C2 of the Year ('64-'66) Finalist - Unmodified
St. Jude Donor '03-'05-'06-'07-'09
Originally Posted by big_G
Don't fool around...just replace it... 
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Race Director
Joined: Feb 1999
Posts: 19,659
Likes: 34
From: Lenoir City Tennessee
Ci 6, 8 & 10 Veteran
St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12-'13-'14-'15
I noticed mine had a small leak under the tank. I got under the car with a rag and wiped the gas away. I was going to try some tank sealer that I picked up. Well, after the rag, the leak got a little bigger. I crawled out from under the car and got a screwdriver to test the leak. I had a small bucket just in case. Good thing too. The screwdriver went straight into the tank and the tank emptied itself in no time. Good thing there was very little gas in the tank.
For my money I would go ahead and replace the tank rather than have to crawl under the car several times just to try and stop the leak again. My 2 cents
For my money I would go ahead and replace the tank rather than have to crawl under the car several times just to try and stop the leak again. My 2 cents
Burning Brakes
Joined: Sep 2005
Posts: 1,078
Likes: 0
From: Santee CA
Here's an excuse to buy a nice racing fuel cell...
POR is good if you're trying to clean/coat the inside to prevent rust, but if you've got a leak, just replace the tank. You'll be happier in the long run.
Plus, you won't have to try to drop a relatively full tank to replace it! (Did that with a Ford Aerostar that had a crack right near the top of the tank; it wouldn't stop leaking until the car had lost 2 gallons of gas).
POR is good if you're trying to clean/coat the inside to prevent rust, but if you've got a leak, just replace the tank. You'll be happier in the long run.
Plus, you won't have to try to drop a relatively full tank to replace it!
(Did that with a Ford Aerostar that had a crack right near the top of the tank; it wouldn't stop leaking until the car had lost 2 gallons of gas).
Racer
Joined: Oct 2004
Posts: 285
Likes: 0
From: Stockholm
Yes replace it!
I (thought I) had one small hole that was leaking, so I bought a sealer kit, removed the tank and cleaned it with my Heavy-Duty Presure Washer.
After the cleaning I suddenly had more than 20 small holes and a couple of big holes.
If you just have one hole your are lucky, but you will probable have a lot of holes that you are not aware of yet.
I found all my holes under the 2" black anti-squeak pad.
The pad is acting as a sealing but if cleaned/washed the sealing effect disapears!
I (thought I) had one small hole that was leaking, so I bought a sealer kit, removed the tank and cleaned it with my Heavy-Duty Presure Washer.
After the cleaning I suddenly had more than 20 small holes and a couple of big holes.
If you just have one hole your are lucky, but you will probable have a lot of holes that you are not aware of yet.
I found all my holes under the 2" black anti-squeak pad.
The pad is acting as a sealing but if cleaned/washed the sealing effect disapears!