[Roadsters] Not Datsun-specific, but relevant to the subject of reviving older vehicles

[Graeme S.]

A very good product that I can recommend is the KBS Tank clean and seal 
process.

I used it on my SP310 tank which I admit was in pretty good shape to 
begin with.

Anyhoo, have a looks at their web site: -

kbs-coatings.com.au/product-category/fuel-tank-protection/

*Regards,*

*Graeme Suckling*

*My Restoration Projects* <http://www.nissanman.shutterfly.com/>

On 1/02/2018 10:10, joey via Datsun-roadsters wrote:
> I used LUCAS, Chevron, and a high end expensive rust inhibitor meant 
> to go in the gas tank after cleaning it. None of them helped a bit in 
> my case.
> So I had it cleaned and sealed at a local shop.   the seal is dark red 
> in color.   Worth the $175.  No issues anymore.
>
> On Wednesday, January 31, 2018, 12:11:18 PM EST, Stephen Holst 
> <stephen.holst at randrglobal.com> wrote:
>
>
> Hi:
> Lots of people use gasoline stabilizers in their old cars.  The major 
> active ingredient in these products are light mineral oils (so called 
> Pale oils –kerosene some are diesel fuel) these oils tend to coat 
> metals and inhibit corrosion-indeed gasoline is really a very very 
> light mineral oil.  Methyl Alcohol will strip the oil coatings from 
> metal products.  Without these protective films and with the current 
> composition of gasoline 10 percent ethanol (ethanol contain at least 5 
> % water and is hydroscopic so will attract more) rust is the 
> inevitable consequence.  So beware.  Use Ave gas or gas without 
> ethanol in any case if the protective oil film has been removed recoat 
> with something like gas stabilizer, kerosene or Diesel.  Diesel is a 
> good substitute for stabilizers and also offers a cleaning agent 
> (since it has an automotive detergent built in)  for the SU carbs and 
> float systems.
> Steve
> SRL 2000
>
>
> On 1/30/18, 9:25 PM, "joey via Datsun-roadsters" 
> <datsun-roadsters at autox.team.net> wrote:
>
>
>     I did something similar but there was an unfortunate side effect.
>      Once I was done cleaning it out and switched to gas, it somehow
>     accelerated the rusting/corrosioin inside the tank.  For ex:  My
>     fuel sending unit was pretty clean.  After I was done and switched
>     to gas, I went from gunk in the tank to rust.  I pulled the fuel
>     sender a few weeks later and it was rusting terribly.  it rusted
>     more in a month than it had for several years in a dirty gas tank.
>       I'm not sure why that happened but it did.
>     So I pulled the tank back out and took it to get sealed.  That is
>     what you should do so you don't have to worry about it anymore.
>
>
>
>
>      On Tuesday, January 30, 2018, 8:50:12 PM EST, Gary McCormick via
>     Datsun-roadsters <datsun-roadsters at autox.team.net> wrote:
>
>
>
>
>
>     Has anyone used denatured alcohol to clean the varnish out of an
>     old gas
>     tank that hadn't been drained before being left to sit? I have been
>     using it on a motorcycle gas tank and it seems to work pretty well.
>
>     First I sloshed some mineral spirits around in the tank, which
>     seemed to
>     clean it up a bit, then I switched to denatured alcohol. After
>     soaking
>     overnight with about half a quart of alcohol in the two-gallon gas
>     tank,
>     the alcohol looked like Guinness when I poured it out. I've gone
>     through
>     two more iterations, and it has come out cleaner and clearer each
>     time.
>     Once the alcohol comes out clear, I'll dry the tank out really
>     well with
>     compressed air and switch to gasoline. With any luck I'll be
>     firing up
>     the little beastie before the weekend.
>
>     Gary McCormick
>     1970 2000 Roadster SRL311-13291
>     San Jose, CA
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