Gas tank flush and seal

[cantflip]

I told Gary to let it dry as long as he felt it need with the one caveat that there's a hurricane bearing down on the east coast & Gary is a lot closer to the coast than I. So keeping any eye on things & leaving the possibility on the table that I may pic the car up Saturday & bring it inland. Other than that I'm in no real hurry. Too early to make that call right now.

Strap her tight to the trailer and don't park under trees... you'll be fine

 

[C Body Bob]

Strap her tight to the trailer and don't park under trees... you'll be fine

I usually park my jaloppys in the front yard & hope for the best

 

[cantflip]

I usually park my jaloppys in the front yard & hope for the best

If it looks bad, I'll have the burb broad side in front of the garage door... kill the green truck, not the door.

 

[Big_John]

I wonder if Evapo-Rust would have been a better alternative to the vinegar in this case? Although expensive, I've had excellent results with E-R in the past even with heavily rusted metal, and it wont dissolve the zinc like vinegar will.

Another thought is that POR-15 will adhere better to lightly rusted metal. I'm wondering if the POR-15 prep was supposed to flash rust the surface by design to enhance adhesion? A side note, in my experience with the regular POR-15 coating, I have never used the metal prep and have had excellent results with the encapsulation, even leaving treated metal out side for years, with no further rust occurring. It was interesting to note that when I would grind off a section of the POR-15, the rust that I had left on was still there, but it was dry and lighter colored, again, encapsulated and stopped by design, not converted.

I'm assuming all of these processes work towards one goal, to stop the rust flakes from getting into the fuel system, and that we are just looking at different methods to that point, one not necessarily being better or worse than the other. It will be interesting to see how long the Red Kote will take to dry and if these "strings" form to get into the system. I'm hoping this works out and that we are just over-thinking the solution.

The vinegar should etch the metal slightly. I don't believe the Evapo-Rust would do that.

The Evapo-Rust does work very well though. It's a little too expensive.

Another option would be oxalic acid, which as wood bleach. Tech: Using Oxalic acid to remove rust

Oxalic acid in powder form is dirt cheap. I've tried it, but I think the local water had something in it that neutralized it, so my results weren't that great.

As I understand it, both oxalic acid and Evapo-Rust just attack the rust and don't affect the bare metal.