Post by shaunthe2nd on Dec 28, 2019 10:25:56 GMT 1
I've used that DeoxC with good results. Also used vinegar and that works surprisingly well. I've also used the cleaners that come with the lining kits and they seem pretty good too. So a few options.
For heavy rusting put in some nuts and bolts and give it a good shake to loosen it up..
RD 350 LC - 1982 - white/blue like my bike in the 80's, finally got an original UK one. RD 350 LC -1981 project in planning stage 31K based hybrid - ex Yogi and Muttsnuts bike - recent acquisition and intro into hybrids for me Triumph Street Triple R (sorry!)
Hi , i have used citric acid and phosphoric acid on tanks with good results . The phosphoric acid puts a grey coating on the steel . I rinse the tanks out after with a mix of bicarb and water then blow dry them out with an air line . You can use a hair dryer /paint stripping hot air gun or even a vacuum cleaner.
I've used different size nuts that Way the different sizes can get into the corents 10mm 13m 17m 19mm (spanner size) if you count 20 nuts in as long as 20 come out you laughing, I used toilet cleaner with the nuts, then once washed out with hose pipe blow dry with compressor, put some petrol in with lots of 2 stroke oil, shake around and leave cap of for petrol to evaporat (no naked flames) then the oil should stop it flash rusting, that's what I did and it worked a treat, only caution is when shaking the tank about with the nuts try make them slide instead of bouncing about in there so you don't put little dints in the tank.
I’ve used electrolysis in the past with good results but my new ypvs has only slight rust inside the tank so I have just ordered a gallon of evapo-rust. I will report on its effectiveness as soon as I have tried it.... but it is supposed to be very good.. time will tell.
Post by midlifecrisisrd on Jan 3, 2020 15:27:07 GMT 1
Usually not too bad with deox but I personally shake as much water out as possible then if not lining dump a load of wd40 into it and shake around to disperse any water in the seems then leave somewhere warm for a couple of days
Personally I stick 50ml of 2 stroke in each tank full to keep it away
Thanks for the advice Steve. It took a month of white vinegar plus a blast of Phosphoric acid to get mine shiny...and that was after rattling around with some clean gravel. I wonder how much thinner it has become as a result.
That is one of the potential issues with using acid ( i say potential because i don’t know how fast it eats away the bare metal) but acid doesn’t discriminate between surfaces, it will attack anything that it comes into contact with. The rust removal products are different, they are intended to act against iron oxide only by breaking the iron out of the chemical bond with oxygen and thus destroying the rust....they are not powerful enough to break the iron out of the chemical bond with carbon so they don’t affect bare steel. Neither do they attack paint or plastic. But as I said earlier, i don’t know how well they work until i have tested it myself...its due to arrive soon.
Ok so the evaporust finally arrived, after the hermese delivery guys managed to split the first bottle and didn’t bother to report back to the supplier... So yesterday afternoon i rinsed the tank with fresh fuel, drained it off then refitted the fuel tap and poured the whole 5l of evaporust into the tank. The worst area was at the lower back end of the tank where it was quite rusty when you get a torch right into it.. So I sloshed it around and then left it in overnight. This morning I tilted the tank forward and left it until mid afternoon. It says on the bottle to leave the tanks for 3 or 4 hours, but it also says that rusty items can be left submerged for 24 hrs for best results.... so each end of the tank has had roughly 12 hrs of submersion. Looking into the tank you could still see debris but when poked with a stick it just wiped off. So I drained the fluid back into the bottle as it can be re used.... rinsed the tank 2 or 3 times and plenty of black sediment flushed out. Looking inside the tank afterwards and all the red rust is completely gone all that remains is a slightly grey slightly rough surface where it was rusty. So I dried it as best as i could with a hot air gun then sloshed a bit of premix around. Hopefully I have saved the tank. I can definitely recommend the evaporust, seems to work well and can be used over again on any rusty items...