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Re: [GMCnet] Gas tank cleaning up date. [message #323075 is a reply to message #322901] Thu, 31 August 2017 22:47 Go to previous messageGo to previous message
BobDunahugh is currently offline  BobDunahugh   United States
Messages: 2465
Registered: October 2010
Location: Cedar Rapids, IA
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________________________________
From: Bob Dunahugh
Sent: Thursday, August 31, 2017 10:39 PM
To: Emery Stora
Subject: RE: [GMCnet] Gas tank cleaning up date.


I asked Ken to put this in order. As I wasn't there all the time. I posted the photos on the EFI list. If interested. E-mail me privately. Bob Dunahugh


________________________________
From: Ken Shaffer
Sent: Thursday, August 31, 2017 1:15 PM
To: Bob Dunahugh
Subject: Fwd: [GMCnet] Gas tank cleaning up date.


---------- Forwarded message ----------
From: Ken Shaffer
Date: Wed, Aug 30, 2017 at 11:21 AM
Subject: Re: [GMCnet] Gas tank cleaning up date.
To: gmclist@list.gmcnet.org


This was kind of an experiment for me but it worked out very well. I saw a video online about tank cleaning with electrolysis and thought it was interesting.....so i tried it. I first power washed the tanks with a Hotey to get the first layer off. they were pretty bad.
1) Dissolve washing soda (Walmart laundry detergent isle) 2oz / gallon of water in plastic 5g bucket.
2) With tanks on ground and fill hole slightly lifted, pour water into sending unit opening. Fill tank.
3) put metal anode into sending unit opening. I made anode from 1/8"x 1" x 24" steel strap bent into S patterns to zig zag into tank.
4) important to make sure anode does not rest on any part of the tank when hooked up to battery charger. I cut a chunk of 3/4" plywood approx 18"x18" to lay flat on top of tank. Then I screwed anode into plywood to hold it into place and hang in tank.
5) clamp positive clamp of 30amp battery charger to anode, clamp neg to outside of tank to ground it.
6) let run for 8 hours. It will generate some rusty/crusty gunk and it will collect onto anode
7) remove anode, clean it off with wire brush and repeat. (same water)
8) I did this process for approx 24 hours / tank
9) dump water and gunk out of tanks, rinse well with power washer. pour in a couple bottles of isopropyl heat (red bottle) to help remove remaining water. fan dry.
10) install tanks and put gas into tanks as soon as possible to deter bare metal tanks from rusting again.

again, this was an experiment for me that worked pretty well. I have included a few pics for you to see process.
Hope this helps and good luck.

Ken Shaffer



On Wed, Aug 30, 2017 at 10:21 AM, John Phillips wrote:
A friend who likes old cars told me that shaking a tank with washed crushed
rock chips inside will remove scale/rust from inside the tank. I have not
tried it but he claims to have done it successfully.

On Wed, Aug 30, 2017 at 12:01 AM, Ken Burton wrote:

> I am very interested in what you did. What kind of liquid was in the tank
> while you did this? Please forward pictures.
>
> --
> Ken Burton - N9KB
> 76 Palm Beach
> Hebron, Indiana
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
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>



--

*John Phillips*
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