« previous next »
Pages: [1]   Go Down

Author Topic: New tank, inside surface rust from wet sanding?  (Read 1640 times)

0 Members and 2 Guests are viewing this topic.

Offline seanhawk

  • Full Member
  • *
  • Posts: 58
New tank, inside surface rust from wet sanding?
« on: January 21, 2013, 09:32:35 AM »
Hey guys I have a couple small spots of surface rust inside my tank from the painting process, what should I do to stop it and correct it from getting worse?

Thanks
Logged

Offline ekpent

  • Really Old Timer ...
  • *******
  • Posts: 13,512
  • To many bikes-but lookin' for more
Re: New tank, inside surface rust from wet sanding?
« Reply #1 on: January 21, 2013, 09:58:08 AM »
Put some gas in it with a small dash of 2 stroke oil and swish it around.How long till you will be using it,this spring ?
« Last Edit: January 21, 2013, 11:26:34 AM by ekpent »
Logged

Offline iron_worker

  • Master
  • *****
  • Posts: 2,081
Re: New tank, inside surface rust from wet sanding?
« Reply #2 on: January 21, 2013, 10:32:43 AM »
I would fill it with vinegar to actually reverse the rust. Then you'll want to neutralize the acidity with some baking soda and water rinsed through. And then finally some transmission oil (or something reasonably viscous) to coat the surfaces until spring. Or just fill it with gas/stabilizer.

IW
Logged

Offline seanhawk

  • Full Member
  • *
  • Posts: 58
Re: New tank, inside surface rust from wet sanding?
« Reply #3 on: January 21, 2013, 10:33:20 AM »
I plan to start it in the next few weeks and see if I need to clean my carbs.
Logged

Offline ekpent

  • Really Old Timer ...
  • *******
  • Posts: 13,512
  • To many bikes-but lookin' for more
Re: New tank, inside surface rust from wet sanding?
« Reply #4 on: January 21, 2013, 11:27:58 AM »
What kind of bike is it. Can you pop a bowl off the carb to take a peek to see what it looks like in there?
Logged

Offline madmtnmotors

  • When did I get to be a
  • Really Old Timer ...
  • *******
  • Posts: 6,110
  • Sunny Central Florida
Re: New tank, inside surface rust from wet sanding?
« Reply #5 on: January 21, 2013, 02:19:55 PM »
Man, the inside of that tank is beeeautiful! Most of us wish our tanks looked that good. Vinegar treatment might get the spots out but could invite more flash rust. I would recommend swishing some oil around in there if it's going to sit a spell, or top it off with fuel and run it if you're ready to ride!
Logged
TAMTF...


Wilbur



Projects:
"Evolution": http://forums.sohc4.net/index.php?topic=100352.0
"P.O. Debacle": http://forums.sohc4.net/index.php/topic,126692.msg1441661.html#msg1441661
F2/F3 O-rings: http://forums.sohc4.net/index.php?topic=113672.msg1300721#msg1300721
Cam Tower Studs: https://www.mcmaster.com/#93210a017/=t19sgp
Clean up that nasty harness: http://forums.sohc4.net/index.php?topic=137351.msg1549191#msg1549191
http://forums.sohc4.net/index.php/topic,148188.msg1688494.html#msg1688494
http://forums.sohc4.net/index.php/topic,139544.msg1579364.html#msg1579364
                                          
Charging system diagnosis: http://forums.sohc4.net/index.php?topic=1012.msg8345#msg8345
Get the manuals: http://manuals.sohc4.net/cb750k/
The Dragon: http://forums.sohc4.net/index.php?topic=45183.msg1571675#msg1571675
Headlight Switch: http://forums.sohc4.net/index.php?topic=113986.msg1283236#msg1283236
Branden's leak free top end thread: http://forums.sohc4.net/index.php?topic=107040.0
Engine Lifting Made Easy: http://forums.sohc4.net/index.php/topic,58210.msg1684742.html#msg1684742
                                      http://forums.sohc4.net/index.php/topic,100352.msg1675840.html#msg1675840
Static and Dynamic Timing: http://www.hondachopper.com/garage/carb_info/timing/timing1.html
Airbox Gasket Replacement: http://forums.sohc4.net/index.php/topic,114485.msg1290000.html#msg1290000
"Café" : http://forums.sohc4.net/index.php/topic,84697.msg953814.html#msg953814
PD Carb Choke Linkage: http://forums.sohc4.net/index.php/topic,100352.msg1669248.html#msg1669248
                                    http://forums.sohc4.net/index.php/topic,110931.msg1248354.html#msg1248354
                                    http://forums.sohc4.net/index.php/topic,48858.msg515204.html#msg515204
Follow up on your damn posts: http://forums.sohc4.net/index.php/topic,144305.msg1791605.html#msg1791605
Taiwanese Cam Chain Tensioners:  http://forums.sohc4.net/index.php/topic,155043.msg1774841.html#msg1774841
Gumtwo Seat Cover: http://forums.sohc4.net/index.php/topic,164440.msg1897366.html#msg1897366
Primary Drive: http://forums.sohc4.net/index.php/topic,166063.msg1919278.html#msg1919278
Tank Latch: http://forums.sohc4.net/index.php/topic,165975.msg1919495.html#msg1919495
Shorten your forks: http://vintage-and-classic-honda-s.456789.n3.nabble.com/How-to-shorten-forks-td4042465.html DO NOT CUT THE SPRINGS!
Clutch How To: http://vintage-and-classic-honda-s.456789.n3.nabble.com/How-to-change-and-adjust-a-clutch-SOHC-td4040391.html
Late model K7/K8/F2/F3 front sprocket cover removal: http://forums.sohc4.net/index.php/topic,178428.msg2072279.html#msg2072279
630 to 530 conversion: http://forums.sohc4.net/index.php/topic,180710.msg2094423.html#msg2094423

Sent from my Tandy TRS-80!

Offline seanbarney41

  • not really that much younger than an
  • Really Old Timer ...
  • *******
  • Posts: 10,849
Re: New tank, inside surface rust from wet sanding?
« Reply #6 on: January 21, 2013, 06:33:46 PM »
+1, just get some oil in there...
Logged
If it works good, it looks good...

Offline seanhawk

  • Full Member
  • *
  • Posts: 58
Re: New tank, inside surface rust from wet sanding?
« Reply #7 on: January 21, 2013, 10:40:52 PM »
It's a brand new sportster tank I purchased from tc bros. I just ordered the Kreem kit so that should take care of the rust and seal it.
Logged

Offline 750K

  • Expert
  • ****
  • Posts: 1,392
Re: New tank, inside surface rust from wet sanding?
« Reply #8 on: January 21, 2013, 11:15:06 PM »
If its a brand new tank the last thing I'd do would be to line it, I'd try and hit it with a bit of sand paper wrapped around a dowel to remove the spot and flush with gas. Once it and any debris is gone I'd get some 2stroke oil inside or fill it with gas and get it one the bike.
Logged
77 Cb750, 78 Kz1000

Offline Retro Rocket

  • Eggs are hard due too a
  • Really Old Timer ...
  • *******
  • Posts: 19,279
  • ROCK & ROLL
Re: New tank, inside surface rust from wet sanding?
« Reply #9 on: January 21, 2013, 11:20:51 PM »
You are over reacting on that tiny bit of surface rust, DO NOT LINE IT, it is fine, as soon as you put gas in there your problem is solved.
Seriously mate, that tiny amount of rust is almost laughable compared to some of the tanks on the forum that have been cleaned {rust all over the inside} and NOT LINED...... You are worrying about nothing.....    I NEVER line tanks, no matter what anyone tells you, once you have seen and tried to deal with a failed liner you would never touch one again.....  Did i say to NOT LINE THAT TANK..... ;D
Logged
750 K2 1000cc
750 F1 970cc
750 Bitsa 900cc
If You can't fix it with a hammer, You've got an electrical problem.

Offline BLUE71TURBO

  • Master
  • *****
  • Posts: 1,849
Re: New tank, inside surface rust from wet sanding?
« Reply #10 on: January 22, 2013, 12:21:25 AM »
Quote from: Retro Rocket on January 21, 2013, 11:20:51 PM
You are over reacting on that tiny bit of surface rust, DO NOT LINE IT, it is fine, as soon as you put gas in there your problem is solved.
Seriously mate, that tiny amount of rust is almost laughable compared to some of the tanks on the forum that have been cleaned {rust all over the inside} and NOT LINED...... You are worrying about nothing.....    I NEVER line tanks, no matter what anyone tells you, once you have seen and tried to deal with a failed liner you would never touch one again.....  Did i say to NOT LINE THAT TANK..... ;D

                     X 1000 !!   ;)    Apple cider vinegar + some new nuts or washers.  Pour about 1 quart of the vinegar and a hand full of washers or nuts and shake it around off and on for a while. Then let it sit for about 1/2 hour. Empty it and fill with gas. your good to go.  As Retro stated that little bit of rust isn't sh1t. You will be hating yourself if you try to coat the inside. DON'T DO IT !!   ;)   ::)
Logged
Remember; Before you can be old and wise, you must first be young and stupid !

Offline killersoundz

  • Hot Shot
  • ***
  • Posts: 608
Re: New tank, inside surface rust from wet sanding?
« Reply #11 on: January 22, 2013, 01:30:19 AM »
Yeah buddy I've put some real rust turds to use. Wash them out and put a filter on the line.
Logged
My project thread:

http://forums.sohc4.net/index.php?topic=107447.0

My CB750K4 Starting up for the first time after a seized motor and rebuild!

Offline madmtnmotors

  • When did I get to be a
  • Really Old Timer ...
  • *******
  • Posts: 6,110
  • Sunny Central Florida
Re: New tank, inside surface rust from wet sanding?
« Reply #12 on: January 22, 2013, 03:54:19 AM »
Quote from: Retro Rocket on January 21, 2013, 11:20:51 PM
You are over reacting on that tiny bit of surface rust, DO NOT LINE IT, it is fine, as soon as you put gas in there your problem is solved.

Ditto

Quote from: Retro Rocket on January 21, 2013, 11:20:51 PM
Seriously mate, that tiny amount of rust is almost laughable compared to some of the tanks on the forum that have been cleaned {rust all over the inside} and NOT LINED......

Ditto

Quote from: Retro Rocket on January 21, 2013, 11:20:51 PM
You are worrying about nothing.....    I NEVER line tanks, no matter what anyone tells you, once you have seen and tried to deal with a failed liner you would never touch one again..... 

Ditto

Quote from: Retro Rocket on January 21, 2013, 11:20:51 PM
Did i say to NOT LINE THAT TANK..... ;D

and......... Ditto



Save the liner kit for a tank that actually NEEDS it.
Logged
TAMTF...


Wilbur



Projects:
"Evolution": http://forums.sohc4.net/index.php?topic=100352.0
"P.O. Debacle": http://forums.sohc4.net/index.php/topic,126692.msg1441661.html#msg1441661
F2/F3 O-rings: http://forums.sohc4.net/index.php?topic=113672.msg1300721#msg1300721
Cam Tower Studs: https://www.mcmaster.com/#93210a017/=t19sgp
Clean up that nasty harness: http://forums.sohc4.net/index.php?topic=137351.msg1549191#msg1549191
http://forums.sohc4.net/index.php/topic,148188.msg1688494.html#msg1688494
http://forums.sohc4.net/index.php/topic,139544.msg1579364.html#msg1579364
                                          
Charging system diagnosis: http://forums.sohc4.net/index.php?topic=1012.msg8345#msg8345
Get the manuals: http://manuals.sohc4.net/cb750k/
The Dragon: http://forums.sohc4.net/index.php?topic=45183.msg1571675#msg1571675
Headlight Switch: http://forums.sohc4.net/index.php?topic=113986.msg1283236#msg1283236
Branden's leak free top end thread: http://forums.sohc4.net/index.php?topic=107040.0
Engine Lifting Made Easy: http://forums.sohc4.net/index.php/topic,58210.msg1684742.html#msg1684742
                                      http://forums.sohc4.net/index.php/topic,100352.msg1675840.html#msg1675840
Static and Dynamic Timing: http://www.hondachopper.com/garage/carb_info/timing/timing1.html
Airbox Gasket Replacement: http://forums.sohc4.net/index.php/topic,114485.msg1290000.html#msg1290000
"Café" : http://forums.sohc4.net/index.php/topic,84697.msg953814.html#msg953814
PD Carb Choke Linkage: http://forums.sohc4.net/index.php/topic,100352.msg1669248.html#msg1669248
                                    http://forums.sohc4.net/index.php/topic,110931.msg1248354.html#msg1248354
                                    http://forums.sohc4.net/index.php/topic,48858.msg515204.html#msg515204
Follow up on your damn posts: http://forums.sohc4.net/index.php/topic,144305.msg1791605.html#msg1791605
Taiwanese Cam Chain Tensioners:  http://forums.sohc4.net/index.php/topic,155043.msg1774841.html#msg1774841
Gumtwo Seat Cover: http://forums.sohc4.net/index.php/topic,164440.msg1897366.html#msg1897366
Primary Drive: http://forums.sohc4.net/index.php/topic,166063.msg1919278.html#msg1919278
Tank Latch: http://forums.sohc4.net/index.php/topic,165975.msg1919495.html#msg1919495
Shorten your forks: http://vintage-and-classic-honda-s.456789.n3.nabble.com/How-to-shorten-forks-td4042465.html DO NOT CUT THE SPRINGS!
Clutch How To: http://vintage-and-classic-honda-s.456789.n3.nabble.com/How-to-change-and-adjust-a-clutch-SOHC-td4040391.html
Late model K7/K8/F2/F3 front sprocket cover removal: http://forums.sohc4.net/index.php/topic,178428.msg2072279.html#msg2072279
630 to 530 conversion: http://forums.sohc4.net/index.php/topic,180710.msg2094423.html#msg2094423

Sent from my Tandy TRS-80!

Offline ekpent

  • Really Old Timer ...
  • *******
  • Posts: 13,512
  • To many bikes-but lookin' for more
Re: New tank, inside surface rust from wet sanding?
« Reply #13 on: January 22, 2013, 05:01:51 AM »
Liners are for a very last option or pinhole problems and not to start a war but I have seen to many Kreeme jobs fail,no fun taking that stuff back out  ;)
Logged

Offline seanhawk

  • Full Member
  • *
  • Posts: 58
Re: New tank, inside surface rust from wet sanding?
« Reply #14 on: January 22, 2013, 07:38:22 PM »
Holy hell, well I guess I wont be lining it!!!! ha, I did have a little dent in the tank from it falling on my welding table which had to be pulled out with a stud gun. I welded the spot up to be sure the tank wasn't weak in that spot and sprayed it with water/soap and applied air to make sure there wasn't any kind of leak, so I'm assuming all is good. I REALLY appreciate all the info. So do I need to coat it with anything or can I just fill it with gas in a week or so when I'm ready to fire it up?
Logged

Offline 750K

  • Expert
  • ****
  • Posts: 1,392
Re: New tank, inside surface rust from wet sanding?
« Reply #15 on: January 22, 2013, 08:00:11 PM »
Pour a bit of two stroke oil in it, roll it around till the inside is coated then drain the excess. You'll just burn the oil out when you run through the first tank of gas.
Logged
77 Cb750, 78 Kz1000

Offline Retro Rocket

  • Eggs are hard due too a
  • Really Old Timer ...
  • *******
  • Posts: 19,279
  • ROCK & ROLL
Re: New tank, inside surface rust from wet sanding?
« Reply #16 on: January 22, 2013, 08:01:53 PM »
I never leave them completely empty, just spray in a liberal amount of WD40 or similar , or put a bit of Kerosene or diesel, something oily, and swish it around to give the bare metal some protection until you want to use it.... ;)
Logged
750 K2 1000cc
750 F1 970cc
750 Bitsa 900cc
If You can't fix it with a hammer, You've got an electrical problem.

Offline Bankerdanny

  • Eventually I will be old enough in reality to be
  • Really Old Timer ...
  • *******
  • Posts: 7,626
  • Endeavor to persevere
Re: New tank, inside surface rust from wet sanding?
« Reply #17 on: January 23, 2013, 01:22:30 PM »
Marvel Mystery Oil is also good for coating the tank to prevent rust until you're ready to use it.
Logged
"The problem with quotes on the Internet is that you never know if they're true" - Abraham Lincoln

Current: '76 CB750F. Previous:  '75 CB550F, 2007 Yamaha Vino 125 Scooter, '75 Harley FXE Superglide, '77 GL1000, '77 CB550k, '68 Suzuki K10 80, '68 Yamaha YR2, '69 BMW R69S, '71 Honda SL175, '02 Royal Enfield Bullet 500, '89 Yamaha FJ1200
Pages: [1]   Go Up
« previous next »