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Old 11-13-2015, 11:14 PM   #9
71CHEVYSHORTBED402
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Join Date: Feb 2009
Location: Northern Nevada
Posts: 7,692
Re: Yellowing/stain removal for a coolant tank

Quote:
Originally Posted by leddzepp View Post
Muriatic (pool) acid. Wear gloves and a respirator (do not breathe the fumes)
Someone recently told me white vinegar is diluted Muriatic acid. I just looked it up, it's diluted acetic acid. Muriatic acid is diluted hydrochloric acid. That said, white vin. might work also, it's just not as strong. I have a bottle of each. Thanks.

Incidentally, from what I can tell, all stains and discolor are on the outside of this bottle.
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Tony 1971 C10 Custom Deluxe SWB 402/400TH A/C

I developed an assembly information kit for restoring my truck from nuts and bolts. It's written in Assy. order, short & simple, packed with all OEM hardware ID; castings; part ID; 100s of part numbers; wiring simple - Resource, and trivial too.

Much info. applies to all 67-72 GM, A/C vehicles, esp. trucks W/O saying. Full search ability, including to 700+ images of illus., parts, charts, Assy., points of interest, cab, bed, & front clip cart plans- Specials and cores were serviced out and R excluded e.g. front/rear glass, body/paint, engine core, rebuilt hinges, steering box, trans, etc.

The project was in-line with long former professions developing process, policy, specs, demo, written for novices, admin., policy, engineers, development, systems & test - Public & govt 2, gross. Sell soft copy cheaply, PM if interested.
Build thread:https://67-72chevytrucks.com/vboard/...d.php?t=730025

Last edited by 71CHEVYSHORTBED402; 11-14-2015 at 10:19 AM.
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