Any way to treat spots like these or leave em?

 

 

 

 

12/70 2.6 block E88 heads Mallory DCOE40 3/2 Twice pipes Tokico 1, 3/4 in sways, ext oil cooler

The stuff I've used has to have rust worse than that to adhere to.

Ospho (phosphoric acid)  may creep into the cracks.

 

The problem is the metal under that paint was not treated properly. It is rusting under the paint.

Thank you. Will look into it. Is it dark in color like POR15? I know I have a few worse spots hidden elsewhere (back of tail lights etc).


12/70 2.6 block E88 heads Mallory DCOE40 3/2 Twice pipes Tokico 1, 3/4 in sways, ext oil cooler

8 minutes ago, 240260280 said:

Ospho (phosphoric acid)  may creep into the cracks.
 
The problem is the metal under that paint was not treated properly. It is rusting under the paint.

 

Guess I'll start sanding to expose all rust then treat, let dry completely, reapply matching paint. This sounds OK?


12/70 2.6 block E88 heads Mallory DCOE40 3/2 Twice pipes Tokico 1, 3/4 in sways, ext oil cooler

 

Edited March 30, 20187 yr by wil84911

I worry about the rest of the car.

 

If it is just the fuel filler, do this:

1. Remove it.

2. Remove paint with paint remover.

3. Soak part for 6 hours in phosphoric acid

4. Blow dry.

6. Degrease with Lacquer Thinner

8. Prime with etching primer.

9. Paint

 

If your are thoroughly cautious and have a chemistry kit like some of us... add a step 3.5

3.5. Zinc Plate

Wow that’s a lot of work for me. Let me see if I decide to keep this car longer. Thank you for the info guys [emoji4].


12/70 2.6 block E88 heads Mallory DCOE40 3/2 Twice pipes Tokico 1, 3/4 in sways, ext oil cooler