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re-sealing gas tank
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Author:  jweston [ Sat Sep 24, 2005 3:55 pm ]
Post subject:  re-sealing gas tank
I am trying to get the rust out of my tank and re-seal it. The problem is the petcock. A friend told me to use muratic acid but when I take the petcock off there are two big holes in the bottom of the tank. Please help
Author:  mdlafferty [ Mon Sep 26, 2005 11:32 am ]
Post subject: 
Wrong acid. Use phosphoric acid to get rid of the rust.
Leave the petcock installed and switch it off.
Author:  frohrs [ Mon Sep 26, 2005 2:43 pm ]
Post subject:  petcock
If your going to leave the petcock on I would consider rebuilding it! There are O-Rings there that you will need to replace!

Personally wouldn't you want the petcock off? Try a radiator shop they can dip the tank for you & get rid of the rust! Hose the tank out good before you take it to them.

Good Luck
Author:  CR250Ryan [ Mon Sep 26, 2005 4:52 pm ]
Post subject: 
I recently restored a rusted tank on old yamaha enduro. There was a failed coating already in there, so I got the POR15 HD Cycle tank kit. Cost was around $30 or so I believe. The petcock was, shall we say, southern engineered, missing both screens and reservoir tube. I found a NOS petcock for $20. So for $50 or so you can have a functionally restored tank. I've ran about 3 tanks of 91 unleaded premix through it with no problems whatsoever. The instructions with the kit are plain and simple and playing with chemicals is always fun, too! :D

good luck
ryan
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