the best way is with steam. i have welded on a gas tank after a steam
clean. how's that for clean! actually you can do a good job by adding 2 or
3 handful of pea gravel and a quart of Zep brand calcium lime and
rust/stain remover. Its in the commercial cleaning isle at Home Depot then
get a friend to help you rock the tank around to swish the gravel and the
rust remover around. This stuff is for bathroom use but derusts brackets,
bolts, nuts. It is some work, but this stuff really works and its about 5
or 6 bucks for a gallon and it can be cut several times. Don't dump the
stuff out when done, put it in a 5 gallon bucket and save it for other
stuff that has to soak to get the rust off.
WILHELM GORDON wrote:
> The gas tank in my '51 GMC pickup has a fair bit of surface scale/rust
> on the inside. This results in some frustrating and unpredictable
> breakdowns when some crud gets sucked into the fuel pickup plugs up the
> system. I am planning on pulling the tank and removing as much of the
> scale/rust as I can but I would then like to coat the inside with
> something to prevent this from happening again.
> Any ideas or suggestions as to how to properly (safely) clean and cot
> the inside of the tank?
> oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959