how to clean corroded fuel tank
#1 _Ozzie Picker_
Posted 18 May 2011 - 08:36 PM
need some ideas on how to clean the inside of a fuel tank that has alot of corrosion,rust and white looking shit,its very poxy inside.
i was thinking hydrocloric acid mixed with water,and maybe after washing out dose up with wd40 till fuel added to stop it corroding again.
what do you people think,its a Porshe 911 tank,and has a swerl pot looking thing inside,so i don,t want to damage it,i,ve heard of pebbles and put on a vibrator,but this tank you would never get all the rocks out of it.
thanks for any ideas.
#2 _bathurst-racer_
Posted 18 May 2011 - 08:45 PM
I hope this helps.
#3
Posted 18 May 2011 - 08:47 PM
You will be able to wash it out with water and it will eat most of the corrosion.
Final wash with metho or acetone to dry any left over water out.
Swirl a coating into it to finish it off and it will be good til you need to work on it.
Grant..
#4 _Ozzie Picker_
Posted 18 May 2011 - 08:53 PM
There is a very good article on this subject in the latest Old Bike Australasia magazine. It involves a battery charger, a 12v headlight and soda crystals.
I hope this helps.
will look into to it,sounds interesting
thanks for your help,
hi grant,
what do you mean with the electrodes?i,ve heard molasses is good forgot about it.
#5
Posted 18 May 2011 - 09:23 PM
Soda is good, but it leaves a coating that you need to remove before doing anything else - so you can leave the thing until you want to use it but then you need to hit it with acid and then seal it.
With the molasses, you just get a clean fresh surface and you seal it then and there. Saves playing around later.
Both good, we just like molasses - it's easier for the big stuff, and most hotrod stuff is big stuff.
Grant..
#6
Posted 18 May 2011 - 11:00 PM
#7
Posted 19 May 2011 - 09:10 AM
#8 _Ozzie Picker_
Posted 19 May 2011 - 06:17 PM
so what do you think i should use for electrodes?and do they need to be at opposite ends of tank?
roughly how long with the molasses?
and who makes POR 15?and where should i buy POR or KBS?
this forum is the BEST.
#9 _Quagmire_
Posted 19 May 2011 - 08:34 PM
he will have some or should advise who does
auto pro over here has it not sure of over there but
#10 _Ozzie Picker_
Posted 19 May 2011 - 09:17 PM
ask your local friendly (or arrogent fat prick of a ) paint suppilier
he will have some or should advise who does
auto pro over here has it not sure of over there but
thanks al,
my paint supplier,is the tamworth holden dealer,and luckly they are great friendly guy,s and do me special prices.
cheers
#11
Posted 20 May 2011 - 08:39 AM
http://www.kbs-coatings.com.au/
http://ppcco.com.au/
Connect a piece of stainless to the positive terminal, hang it in the liquid(not touching the fuel tank)& the negative terminal to the fuel tank.
Edited by warrenm, 20 May 2011 - 08:49 AM.
#12
Posted 20 May 2011 - 09:25 AM
#13
Posted 21 May 2011 - 05:20 PM
Check the sealer you use. The POR15 stuff we use needs to be primed reasonably soon after - it seals the surface against corrosion but is still porous. If you can make sure you use a sealer that doesn't need another coat AND is resistant to fuel, it's a one shot and you're home and hosed.
Grant..
#14 _Ozzie Picker_
Posted 21 May 2011 - 06:06 PM
its soaking ATM,
with the POR15,how do you use that?
this has a swirl pot in side,so how do you move the POR15 about?the corrosion is almost up to the top,so i hope the POR15 is runny stuff.
#15
Posted 22 May 2011 - 07:45 AM
#16 _Ozzie Picker_
Posted 22 May 2011 - 08:43 AM
KBS has a similar product for sealing inside fuel tanks, they have a good video of how to do it on their website, just google KBS coatings.
cheers mate,
i,ll have a look now.
#17
Posted 23 May 2011 - 08:46 AM
The 911 tank has a plastic swirlpot inside as you know. These swirlpots are made from 2 differnt types of plastic. Only 1 of which will survive the POR process. Do you want to take the gamble?
Even POR don't recommend their products for 911 tanks!
Alternatively, Pelican parts [who are the cheapest supplier of 911 parts on the planet] sell a replacement fueltank for around $500. Subject to availiability.
My advise m8.... don't bother trying to fix it! The little aircooled wonders are extremely finicky when it comes to fuel supply.
#18 _Ozzie Picker_
Posted 23 May 2011 - 06:21 PM
had no idea the swirl pot was plastic,thought it looked strange,you saved my ass.
actually its coming up real nice with the mollasses,we might just give it a go,as the shit coming of looks like a build up ontop of the oridginal coating,which still looks silver.
if it doesn,t work,i,ll definatly look at replacing it,thanks for the tip mate.
i might need some more help yet,as i,m helping a friend, he got an import cheap,and it is a pritty good thing.
#19
Posted 23 May 2011 - 06:31 PM
Let me know if i can help m8.
#20
Posted 23 May 2011 - 07:12 PM
Good luck, and I hope the plastic survives the process.
Grant..
#21 _thorley_
#22 _Ozzie Picker_
Posted 04 February 2013 - 07:58 PM
That was a Blast !!
I now have a 44 gallon drum full of molasses,throw all sorts of things in,the fungus on to is foul,have to keep it covered.
Edited by 73BATHXU1HTBATH350, 04 February 2013 - 08:01 PM.
#23 _walkinshaw_
Posted 05 February 2013 - 08:20 AM
Thorley very well done. Who the hell thought up molasses as a rust eater is as far as Im concerned thinking well outside the square.
Thats one to have a go at.
#24 _thorley_
Posted 05 February 2013 - 09:29 AM
Be sure to keep it covered or you might find dead rats floating in it.
And don't seal it , it will need to breath.
#25
Posted 05 February 2013 - 10:15 AM
Did he do one rim in Molasses mixed with what, water? and another in just white viniger?
or did he mix molasses and viniger?
4 user(s) are reading this topic
0 members, 4 guests, 0 anonymous users