The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 01-03-2017, 11:41 PM   #1
KyleSeal
Senior Member
 
KyleSeal's Avatar
 
Join Date: Mar 2014
Location: Toano, VA
Posts: 884
Cleaning out gas tank?

I have a stock gas tank for my 70 and its got some rust in it (no holes just a bit messy), how do I clean this up? Or do I just get the dust from storage out and run it?
__________________
"Sometimes I do serve as a good bad example. Glad to be of service."

My Build Thread (1967 C10, lowered, EFI, daily truck): http://67-72chevytrucks.com/vboard/s...d.php?t=830809
KyleSeal is offline   Reply With Quote
Old 01-03-2017, 11:50 PM   #2
brad_man_72
the boat guy
 
brad_man_72's Avatar
 
Join Date: Jul 2007
Location: springfield mo
Posts: 2,339
Re: Cleaning out gas tank?

Remove pickup and sening unit. A chain and vinegar will take care of the loose rust and then some. Seal with red kote.
brad_man_72 is offline   Reply With Quote
Old 01-04-2017, 12:13 AM   #3
KyleSeal
Senior Member
 
KyleSeal's Avatar
 
Join Date: Mar 2014
Location: Toano, VA
Posts: 884
Re: Cleaning out gas tank?

Quote:
Originally Posted by brad_man_72 View Post
Remove pickup and sening unit. A chain and vinegar will take care of the loose rust and then some. Seal with red kote.
Can you elaborate? Also if you recommend a product that would be very beneficial.
__________________
"Sometimes I do serve as a good bad example. Glad to be of service."

My Build Thread (1967 C10, lowered, EFI, daily truck): http://67-72chevytrucks.com/vboard/s...d.php?t=830809
KyleSeal is offline   Reply With Quote
Old 01-04-2017, 01:04 AM   #4
DarkFlounder
Registered User
 
Join Date: Nov 2014
Location: Austin, TX
Posts: 281
Re: Cleaning out gas tank?

Take a look at POR-15 Fuel Tank Sealer.
__________________
72 K2500 Sierra Longbed Wideside 350/TH350/NP205
66 Plymouth Barracuda 225 Slant6
DarkFlounder is offline   Reply With Quote
Old 01-04-2017, 02:48 AM   #5
Denzille
Registered User
 
Join Date: Jan 2017
Location: Seattle
Posts: 1
Re: Cleaning out gas tank?

Quote:
Originally Posted by brad_man_72 View Post
Remove pickup and sening unit. A chain and vinegar will take care of the loose rust and then some. Seal with red kote.
Good advice, vinegar is the best and I love the smell.
Denzille is offline   Reply With Quote
Old 01-04-2017, 06:39 AM   #6
scooterpimp
Registered User
 
scooterpimp's Avatar
 
Join Date: Dec 2015
Location: Newark ,Delaware
Posts: 158
Re: Cleaning out gas tank?

Wouldnt spend too much time cleaning , & tank sealing can be a gamble. New tanks arent that expensive if tank is scetchy?
scooterpimp is offline   Reply With Quote
Old 01-04-2017, 07:41 AM   #7
brad_man_72
the boat guy
 
brad_man_72's Avatar
 
Join Date: Jul 2007
Location: springfield mo
Posts: 2,339
Re: Cleaning out gas tank?

Remove fuel tank, remove sending unit, add chain and a gallon of vinegar. Agitate, let sit for an hour, agitate repeat for a day or so to let te vinegar work at dissolving the rust. remove vinegar, rinse with water agitating occasionally. Remov chain and water, let dry perferably with heat so theirs less chance of rust. Seal tank with red kote following instructions. Let cure for several days. Reinstall sending unit and pickup. Reinstall gas tank. Fill with fuel. Drive repeat.
brad_man_72 is offline   Reply With Quote
Old 01-04-2017, 07:43 AM   #8
brad_man_72
the boat guy
 
brad_man_72's Avatar
 
Join Date: Jul 2007
Location: springfield mo
Posts: 2,339
Re: Cleaning out gas tank?

If you're in some kind of rush. Replace vinegar with muratic acid. Will work in minutes instead of overnight. Rinse, dry, add a bunch of 2 stroke oil to your first fill up.
brad_man_72 is offline   Reply With Quote
Old 01-04-2017, 10:15 AM   #9
jocko
Senior Member
 
jocko's Avatar
 
Join Date: Oct 2009
Location: Godley, TX
Posts: 17,976
Re: Cleaning out gas tank?

Then again vinegar won't singe your nose hair. If you choose muratic acid, make sure to take all the precautions. It will eat through blacktop and is harmful if inhaled too much. I'd just go with the vinegar personally - then you don't have to worry about disposal either. Muratic acid is a different story, can be a major pain to get rid of it (properly). I've used it, probably won't again except for derusting small hardware - but there are many non-toxic products on the market now to choose from. I'm no tree hugger by any stretch, but I would not dump it on the ground or down the drain (not that anyone is suggesting that - but rinsing the tank will produce a large mix of water and muratic acid with nowhere to go).
jocko is offline   Reply With Quote
Old 01-04-2017, 11:04 AM   #10
randy500
Account Suspended
 
Join Date: Jul 2016
Location: Tacoma, WA
Posts: 6,873
Re: Cleaning out gas tank?

Post a want to buy ad in the parts section and buy a used tank, cleaning and sealing is silly when the tank is readily available used.
randy500 is offline   Reply With Quote
Reply

Bookmarks

Tags
70 c10, gas tank, rust


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 01:38 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com