gas tank woes

[bigbrotherjohn]

I am nearing the end of an engine rebuild and I looked inside my gas tank today. It's not terrible but has some rust. The sides of the tank are clean but the bottom is rusty. Looks like just surface rust. No holes. What do I have to do before I can use it. I want to do it at home if possible. thanks

[irish green 68]

You have a few options here. I was in your same situation and I'm just now finishing solving this problem.
#1- Purchase a new tank. Aftermarket $275-$400, OEM $1200+
#2- Have a professional restore your tank. I looked into a franchise called "TANKRENU" and they wanted $400 for a complete restoration and offered a lifetime guarantee.
#3 Purchase a kit from POR-15. They have a tank kit that has tank sealer, Marine Clean and a metal prep. This kit cost around $40 and is the route I took. It takes a little time and the Marine Clean works good at cleaning it. I just poured in the tank sealer today and it takes 96 hours to cure. If you have the time and patience you can save a lot of $$$ by doing this yourself. If you can't find the kit, let me know and I'll try and find the website where I got it from.
Don't forget to buy a new tank filter also.
Good Luck,
Scott

[69 Soft Targa]

The easy at home method.

1. Remove tank.

2. Put a few handfuls of nuts and bolts in tank along with water or solvent if you choose.

3. Find a friend to help you shake, rattle and roll the hardware around.

4. Rinse the tank and watch in amazement at the rust washing away leaving a shiny surface.

Repeat process as needed. Remove hardware and dry tank.

I've heard tire chains can be substituted for the hardware and are easier to remove from the tank.

No, I'm not joking. I recently employed this process on a friends rusty, scaly 911 gas tank and we were both quite surprised to see a shining rust free tank.

[atlporsche]

I got the eastwood re-coating system for mine...it works GREAT!!!

sjd

[AirJose]

Did the POR myself. It came great, it has a ceramic feel and looks when cured. Just send you an email with more instructions. Take care, Jose

[Morrie]

We blew mine out with a sand blaster, then took it to a radiator shop. They boiled it out and pressure tested it. This made all the weak spots on the seams pop which allowed for the tank to be welded up solid. I have had no issues since and it has been a couple years.

Morrie

[69 Soft Targa]

See my post above.
It's DIY at home and costs nothing