Seal All - Pin Hole

Binderson · Apr 29, 2020

I am planning to do a quick fix on a pinhole leak that I have on my F20 gas tank leak. It's a very slow leak. You can leave a bowl under it and it won't have any a week later but the paint is bubbled under the tank and it is damp with gas. I was planning to scrape the paint off and use some Seal All on there for a quick fix for this summer. During the winter I plan to pull the tank and have it coated on the inside.

My question is does the tank need to be empty or what do I need to do for prep work? Will it be fine to scrape the paint off dry it off some with a towel and use the Seal All?

Happy restorations to you all!

Thanks!

Ray(MO) · Apr 29, 2020

I put it on while my tank was leaking. No problems.

leroy in ne · Apr 30, 2020

Your choice but when you start cleaning the paint from your leak area you may find your leak hole is considerably larger. Personally I would empty the tank.

Oregon Tractor Jack · Apr 30, 2020

I put some on a diesel tank on one of my tractors with a full tank and it seal it up fine. You might have to make several applications.

Ultradog MN · Apr 30, 2020

I don't understand why people won't learn
to solder.

Case Nutty 1660 · Apr 30, 2020

I used Seals All on a Jeep gas tank some 40 years ago,, I had ran over a unseen metal stake and it had a hole I could fit my thumb in,, gas was dripping out still when I started the repair,, as the gas would hit the product it made it start setting up,, in ten min I had the hole filled easy,, it still is holding without a drip today,, a heck of a lot easier than removing the tank cleaning it and the trying to soldier in my opinion,, if I had not done it myself I would not have thought it would hold for a day let alone over 40 years now,, the puncture was about a inch above the bottom of the tank and was over a inch in diameter which was the stakes size,, this was long before the corn syrup was being added to fuel here,, I do not know if it will hold up as well with it or not but I still use it today as I refuse to buy any gas with it in it anyway,, lucky for me I can still get Premium gas which is all I buy anyway with that nasty stuff in it,,

JWA · Apr 30, 2020

fusion · Apr 30, 2020

A small metal screw and a fiber washer inserted into the hole don't over tighten
worked good on my TO-30

showcrop · Apr 30, 2020

Binderson, I have noticed that the product gets good reviews whenever the topic comes up, and that it usually works without draining the tank. I would not hesitate to use it as you propose, and then remove and solder the tank when it comes up on your list of jobs to do. Though people don't like to admit it everyone has a list of projects that they have to prioritize and work their way through.

fastfarmall · Apr 30, 2020

I am the same way, our local dealer, still sells 91 octane,at about 50cents a gallon over unleaded, but i pay the the price, for the loader, mower, and weedeater, just 5 gallons at a time !

Determined · Apr 30, 2020

Seal All is great stuff, been using it for decades.

Best results if you cut a piece of old blue jeans and thoroughly saturate it before putting it on.
Disposable gloves come in handy.

Gives it more area to stick to and as others have said it will last a long long time.

Blackhole49 · Apr 30, 2020

I put seal all on a pin hole on my first 8n 36 years ago. I used it on a small round piece of tin and wedged it in
place overnight with a 2x4. It was still the only repair the tank needed until I sold the tractor 20 years later.
Sometimes the easiest solution is the best. And yes, I have the equipment and know how to solder.

teddy52food · Apr 30, 2020

Rub a bar of soap on that spot & the leak will stop.

BarnyardEngineering · Apr 30, 2020

(quoted from post at 03:02:02 04/30/20) I don't understand why people won't learn to solder.

Because it's not something you can do successfully/well on your first try, and fixing something like this tank is a one-shot deal. A little too much heat and you've burned a 1" hole in your tank.

A couple of practice runs on some scrap does not an expert make.

Bob Harvey · Apr 30, 2020

Just out of Hi school, I had a '38 Pontiac sedan. It developed a pinhole in the gas tank. My dad had the solution. A sheet metal screw, a leather washer (hand cut) and Seal all. Well by the time I sold the car there were probably 25 'patches' - non ever leaked ! Got to be a routine - every morning before starting the car I would duck under to inspect the gas tank.

rusty6 · Apr 30, 2020

JBweld is my go to for any patching job. I've successfully patched two IH truck gas tanks with a sheet metal screw with JB weld plastered over it. Drained the tank of course and had to give it a day to set. Its been over 20 years and they still don't leak a bit. I have little faith in seal all and my soldering abilities are not great.

Seal All - Pin Hole

Binderson

Member

Ray(MO)

Member

leroy in ne

Well-known Member

Oregon Tractor Jack

Member

Ultradog MN

Well-known Member

Case Nutty 1660

Well-known Member

JWA

Member

fusion

Member

showcrop

Well-known Member

fastfarmall

Well-known Member

Determined

Well-known Member

Blackhole49

Well-known Member

teddy52food

Well-known Member

BarnyardEngineering

Well-known Member

Bob Harvey

Well-known Member

rusty6

Well-known Member

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