Thanks David, I’ll get the supplies this week. By agitate, do you mean shake only?
Sent from my iPad > On May 23, 2021, at 3:09 PM, David Shevlin <[email protected]> wrote: > > > Graham.........I considered using a commercial rust-remover (“Evaporust”) but > opted for this approach instead: > > o Add undiluted vinegar (weak acid to solubilize rust) to the empty tank > and agitate; agitate more; keep agitating.........then drain after several > days. I used store-bought vinegar (5% acidity). I don’t believe it matters > whether it’s white vinegar or cider vinegar. I added 2 gallons of vinegar > and agitated the tank many times / day for several days. Between agitations, > I left the tank in various orientations such that all interior surfaces were > periodically bathed in vinegar over the days. Drain. > > o Add baking soda solution (weak base to neutralize any residual acid) to > the empty tank and agitate. For this step, I agitated the tank for a few > minutes. Drain. > > o Add water to the empty tank and agitate; agitate more; keep > agitating........then drain. For this step, I agitated / drained / filled > / agitated / drained through several cycles. I spent ~ 15 minutes on this > step > > o Add isopropyl alcohol (IPA; functions as a water-scavenger) to the empty > tank, agitate and drain. For this step, I used 70% IPA (16 oz.). Since > this was a small volume relative to the tank volume, I was careful in > agitating (several minutes) in an effort to ensure that IPA came in contact > with all tank-interior surfaces and to mix with any residual water from the > previous step. Drain. A very minor degree of “flash-rust” developed in some > areas following this step. > > o “Blow-dry” the tank interior. I used compressed air and a heat-gun (low > setting) on this step. The tank interior (as observable with a mirror and > flashlight) at this point was substantially rust-free. > > o Fill the tank with fresh gas. > > I’m happy with the outcome (including a functional fuel gauge) but sad that I > got myself in the situation to start with. Perhaps it’s a cautionary-tale > that will help others (don’t allow your tank to rust !). In any case, I’m > also happy to share the experience and to report that I am back on the road ! > After several years. Side note: I had forgotten how un-fun mounting tires > (front and back) is. One, two-foot iron broke in the process. > > David > > > Before / After Conditions: > > <image[3].png> > > > Bonus pics: > > Rust (and liquid) from the tank > > > > Current-status image > > > > From: Graham Rogers > Sent: Sunday, May 23, 2021 1:52 PM > To: [email protected] > Subject: Re: [Nighthawk Lovers] Gas Tank restoration > > Yes, tell me! > > On Sun, May 23, 2021 at 10:51 AM David Shevlin <[email protected]> wrote: >> Graham.......I had good success at removing rust from my 1986 NHS >> tank-innards. Happy to share if you’re interested. >> >> David >> >> From: Graham Rogers >> Sent: Sunday, May 23, 2021 8:57 AM >> To: Nighthawk Motorcycle Lovers! >> Subject: Re: [Nighthawk Lovers] Gas Tank restoration >> >> First local hardware store I walked into here had Methyl Ethyl Ketone. I set >> up the tank, had a pressure washer ready to go and every precaution not to >> get the stuff on the paint. The stuff really worked well. It softened the >> liner on contact and I got most of it out. It was messy and I did get a few >> streaks on the paint, not too bad. EMK is so strong it started to work on >> the plastic funnel I was using. Now To remove the rust in the tank, forget >> about lining it again. Thanks folks for the suggestions. >> >> On Wednesday, May 19, 2021 at 5:51:44 PM UTC-4 Graham Rogers wrote: >>> Thanks Nick, I’ve been trying to find a US supplier of the stuff >>> >>>> On Wed, May 19, 2021 at 5:04 AM 'Nick Tampsett' via Nighthawk Motorcycle >>>> Lovers! <[email protected]> wrote: >>>> Hi Graham, I had the same problem last year. There were various remedy’s >>>> suggested to me, but none of them worked. I then contacted a guy here in >>>> the UK who specialises in tank repairs. I bought a complete tank repair >>>> kit from him ( liner remover, rust preventative and new sealer etc ). The >>>> liner remover didn’t work (🤬🤬) but everything else did. I contacted the >>>> guy again and he suggested a product called Fertan Sealeater. I bought >>>> some and yes it did work. I then used the rest of kit to seal the tank and >>>> it’s been good ever since. >>>> One very important tip. DO NOT get any of the liquid on your paintwork, it >>>> will eat it. Ask me how I know. >>>> Hope this helps. >>>> >>>>> On 19 May 2021, at 01:24, Graham Rogers <[email protected]> wrote: >>>>> >>>>> Has Anyone had any experience removing a deteriorated liner out of a gas >>>>> tank. There is rust under the liner. I want to deal with the liner first. >>>>> I have already pressure washed a lot out of it. -- >>>>> You received this message because you are subscribed to the Google Groups >>>>> "Nighthawk Motorcycle Lovers!" group. >>>>> To unsubscribe from this group and stop receiving emails from it, send an >>>>> email to [email protected]. >>>>> To view this discussion on the web visit >>>>> https://groups.google.com/d/msgid/nighthawk_lovers/9dcc39a3-4d88-46b2-87ae-99458302e79en%40googlegroups.com. >>>> -- >>>> You received this message because you are subscribed to the Google Groups >>>> "Nighthawk Motorcycle Lovers!" group. >>>> To unsubscribe from this group and stop receiving emails from it, send an >>>> email to [email protected]. >>> >>>> To view this discussion on the web visit >>>> https://groups.google.com/d/msgid/nighthawk_lovers/3A9946D1-49DB-4BB8-A83F-2CE0997A59AD%40btinternet.com. >> -- >> You received this message because you are subscribed to the Google Groups >> "Nighthawk Motorcycle Lovers!" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/nighthawk_lovers/3243a8f5-ef2a-40c3-9b94-c533e93f7083n%40googlegroups.com. >> -- >> You received this message because you are subscribed to the Google Groups >> "Nighthawk Motorcycle Lovers!" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/nighthawk_lovers/83D116674A8645C0819AD03FDB7F288C%40DavesWootHP. > -- > You received this message because you are subscribed to the Google Groups > "Nighthawk Motorcycle Lovers!" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/nighthawk_lovers/CAGg-qp0D446tdHhap3ky4E_%2B8_%3D78hyo0Y3hBE8u2ZTbAFsy2g%40mail.gmail.com. > -- > You received this message because you are subscribed to the Google Groups > "Nighthawk Motorcycle Lovers!" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/nighthawk_lovers/3FFF984E1CE04202AC612292B38F2C0D%40DavesWootHP. -- You received this message because you are subscribed to the Google Groups "Nighthawk Motorcycle Lovers!" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/nighthawk_lovers/492E3AD8-3C1E-4B05-BE4C-2DAC02D825B1%40gmail.com.
