Fuel Tank Clensing

[SJ]

> From: "Shawn Manny" <shawn.manny at gmail.com>
> Subject: Fuel Tank Clensing
>
> OK, we've been rallycrossing the 4kq project for a few events now and are
> still struggling with some fuel tank issues.
<snip>
> After 5 runs yesterday (approx. 4 miles) the filter was
> yet again full of rustscale and debris (insert frustration here). Besides
> swapping over to a fuel cell is there ANY way to clean out the inside of
the
> tank to remove rust scale?

*****  To do the job right requires dropping the tank, cleaning it, removing
rust, and painting. It takes time to do it right.
Luckily, most of the work is done by chemicals and not brawn.
Here is one story of how to do it >
http://jasonf-blog.blogspot.com/2006/05/gas-tank-repair-take-1.html
another story >
http://www.mail-archive.com/old-chevy-truck@yahoogroups.com/msg08008.html
http://www.popularmechanics.com/how_to_central/automotive/1266991.html

http://groups.google.com/group/alt.motorcycles/browse_frm/thread/d5a71ee87890f11f/c73cc7e75af65b6a%23c73cc7e75af65b6a

http://www.motorcycleanchor.com/motorcycle/how_to/mc_tankrust.html

You can find many other stories using Google with appropriate search words.

Basically, you clean first. Then you use Phosphoric acid to get rid of the
rust and prep the metal surface. Then you Paint.

Por-15 makes kits for doing gas tank restores. Give them a call and ask
them.
http://www.por15.com/PRODUCTS/COMPLETEKITS/tabid/62/Default.aspx
http://www.por15.com/PRODUCTS/FUELSYSTEMRESTORATION/USSTANDARDFUELTANKSEALER/tabid/112/Default.aspx

I've had success on variuos projects with electrolytic rust removal. You can
fill the tank with electrolytic solution and insert an electrode. Leave it
for 24 to 48 hours and all of the rust will be gone.
I'll be writing a post on this method in the near future.

SJ
85 Dodge PU, D-250, 318, auto
85 Audi 4k - - sold but still on the road
88 Audi 5kq
90 Audi 100q



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