First time using Fertan tank sealer & rust converter - 1957 Douglas Dragonfly / ep137
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- Опубліковано 6 тра 2021
- Despite how it may look, we were not sponsored nor paid to make this video and we paid for the products. We'd been recommended to try the Fertan products so as we needed to treat this fuel tank it made for the perfect opportunity. Our opinion? It is a very good product and one that we'll definitely be using again.
Buy at www.fertan.co.uk/
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I recently de-rusted an old DKW fuel tank on a Honda CB 750.
Step 1- Two tablespoons of caustic soda, fill tank with cold tap water, leave overnight.
Step 2 - Pour out soda, fill tank with cleaning vinegar, let sit for several days.
Step 3 - Pour out at least half the vinegar, add two handfuls of small nuts, bolts, screws, etc., and shake well while tipping tank over and over, upside down, etc.
Step 4 - Pour out vinegar and screws, rinse tank well with demineralised water.
Step 5 - Heat tank with heat gun as soon as possible to avoid flash rust. Inspect with bright torch to make sure all water has evaporated.
Step 6 - Add rust converter, about 200 mil, and tip tank in all directions to ensure even coating.
Step 7 - Rinse tank with warm water and allow to dry. (the tank had no rust or converter residue by this stage, the metal was clean and bright).
Step 8 - Add tank sealer and tip tank in all directions to coat evenly.
The process took about two weeks, and cost about $60 AUD, but the tank is now clean, rust free, and sealed.
Great tip - thanks for posting!
Nice one, just got a 1990 BMW R80 and it needs doing. I'll be using this stuff, it comes highly recommended and you confirm that
Good info with this video. I have 2 Dragonflies, one I rebuilt and ran about 35 years ago, and one still all in bits, all parts painted/lined and ready to assemble - but sadly not by me. This classic biker is 75 next month, so all has to go but, if I (unlikely) or any buyer find the tank insides need treating (been garaged many years) this will be a good help, thanks. Like mine, it is missing the green stick-on, pimpled knee pads. Black were available and later, I think, the green ones I never got. I even have tank panels tracings (for my tank sprayer/hand-liner guy) from the original on clear plastic film somewhere that I hope someone can make use of one day.
By coincidence, having just watched your video about welding up the splitting Earls forks, I happen to have a spare set, minus dampers. Fair surface rust in places but, with that filler shown being used, I hope they may be useful to someone in need who cannot source any better ones.
I recall reading about that outfit (unless it is a copy) being built on the I.O.M by, I think, someone called Heatherington. There was also a 'DragonFour' special with another pair of cylinders/inverted crankcase placed on the top as a 700cc engine. Thanks for showing.
Good video
Thanks!
How did this treatment hold up?
Excellent!
No open flame or cigarettes.......Ash quits
Ha ha ha ha
yep looks like u were paid bad vid and who the hell was the voice in the back ground bad
It's hard to make a video like this without looking like it was paid for. But I can only promise you that it wasn't. And that's my voice (Stuart) behind the camera, thanks!