Posted by casebro on Friday, July 09, 2004 at 3:25PM :
In Reply to: Gas Tank Renewal posted by Hal on Friday, July 09, 2004 at 2:46PM :
Do you even know if you have a dirty tank? Lots of cars get crap in the gas when they fill up- wishful thinking with a 50 year old tank though. First drain the tank into an open topped bucket, you can pour the old gas into you daily driver, it will burn. 10% old gas will smell at shutdown, but what else you gonna do with it? Just don't transfer the sludge into the other tank. Remove sender for access as well as to look inside. I washed mine with detergent and water, rinsed out with a garden hose, dried with shop vac on blow,then slushed it with a coumpound. Look for Tank 'slushing' or 'sloshing' conpound, pour it in, roll it around to coat all sides, leave it on each side for a few minutes, pour the excess out the filler. Let it dry several days- I ran my shop vac on blow into the filler (duct tape it) , with tank upside down so heavy fumes blow out the sender hole on the bottom. The slushing goo will glue down any loose stuff as well as seal. A very rusted tank probably needs some abrasive action inside- use a piece of chain, clean gravel, nuts and bolts, whatever, and shake tank w/ detergent for a few hours, then proceed with rinsing, drying, slushing. Nothing you can't do in you own backyard.