Removed tank, stuff rolling around inside, how do i clean?

[icapture]

I removed my gas tank tonight in order to remove my right hand side rear bumper shock. When I move the tank back and fourth I can hear stuff moving around on the bottom of the tank. When I looked inside with a flashlight I could see that the bottom of the tank was rusting and flaking, so I am guessing the debris I hear moving around in there is rusted metal chips. There also sounds to be a coin moving around in there, im guessing.

 

So my question: Is it important that I remove the metal chips before I re-install the tank? Also, if I shake the tank back and fourth is there anything inside there I could damage? Maybe a fuel level sensor or something?

 

Thanks for the help. And I am pretty curious to see if it is in fact a coin inside there.

 

Im also gonna give it a quick coat of paint before I throw it back on. No reason not to clean her up a bit while she's out.

[cygnusx1]

I just cleaned and lined a 240Z tank with a KBS tank cleaning and sealing kit.

 

http://www.kbs-coatings.com/Auto-Fuel-Tank-Sealer-Kit_p_34.html

 

They have instructional videos. Make sure you don't leave any paint puddled in the tank after you coated it. The puddles will harden as chunks and not stick to the tank. I had to bust a hardened puddle out of the tank and then recoat the area where the puddle had been. It can all be avoided buy rotating the tank for at least a half hour, after you poured out as much left over paint as you can.

[DAW]

The things rolling around are supposed to be there, they stop sediment from forming.

DAW

[Oddmanout84]

What did you use to cover the sender hold and filler hole? I just remembered I still have a POR tank sealer kit and it might save some money while I bide time for my fuel cell install.

[cygnusx1]

What did you use to cover the sender hold and filler hole? I just remembered I still have a POR tank sealer kit and it might save some money while I bide time for my fuel cell install.

 

A log whittled to fit the holes, and duct tape!  LOL.

Edited April 14, 2010 by cygnusx1

[Lazeum]

To remove all the stuffs that might be peeling off, I'll advise using a chain (not too big though) and water. Then you shake as much as you can to use the chain inside the tank as a grinder. I've done that many times, it works quite well.

 

Obviously, you need to remove the fuel meter unit and be carefull with pipes before to proceed So you can use the hole left wide open as a window for the chain but also to remove water from there.

Edited April 14, 2010 by Lazeum

[z2go]

I'm in the process of doing the POR 15 sealer kit on my tank, I found that racquetball works really well to fit the hole! I tried a tennis ball in the filler neck without thinking about it, and of course it leaks because of the fuzz... I used plastic saran wrap and rubber bands to cover the vent holes, but it doesn't seem to work very well.