HOOD HINGES SPRING

[Sauron327]

So is the consensus that the hinge is zinc, not manganese phosphate, and the spring is neither?

I plan on doing my hinges is a few weeks and have a NOS set of springs in the package that just need cleaned up.  Maybe just Evaporust and oil the springs?   

If the springs are new GM why do you want to treat virgin spring steel with Evaporust? Were they rusted when removed from the package? I have had many hood hinges rebuilt which were supplied with new GM springs. Treat the new springs with the many bare metal protective coatings available if that is your preference. REM oil or any preservative in the machine tool industry works well. For those who drive their cars, I duplicate the hue of the raw hinges and springs after proper prep with epoxy and topcoat. Use Deep Creep for lubrication, same for door hinges.

[bcmiller]

So is the consensus that the hinge is zinc, not manganese phosphate, and the spring is neither?

I plan on doing my hinges is a few weeks and have a NOS set of springs in the package that just need cleaned up.  Maybe just Evaporust and oil the springs?   

If the springs are new GM why do you want to treat virgin spring steel with Evaporust? Were they rusted when removed from the package? I have had many hood hinges rebuilt which were supplied with new GM springs. Treat the new springs with the many bare metal protective coatings available if that is your preference. REM oil or any preservative in the machine tool industry works well. For those who drive their cars, I duplicate the hue of the raw hinges and springs after proper prep with epoxy and topcoat. Use Deep Creep for lubrication.

Could you share the paint formula that you use?

[169INDY]

For a Driver (ALTERNATIVE METHOD); Blast hinges with glass beads, SEM Etching primer (Black) <SMS black etching primer, rattle can # 39673.> Top coat hinge with 270M Metallic Charcoal Dampney's stove paint is packaged in:12 oz. aerosol spray cans; Spring 270-70M Metallic Black.

[Sauron327]

So is the consensus that the hinge is zinc, not manganese phosphate, and the spring is neither?

I plan on doing my hinges is a few weeks and have a NOS set of springs in the package that just need cleaned up.  Maybe just Evaporust and oil the springs?   

If the springs are new GM why do you want to treat virgin spring steel with Evaporust? Were they rusted when removed from the package? I have had many hood hinges rebuilt which were supplied with new GM springs. Treat the new springs with the many bare metal protective coatings available if that is your preference. REM oil or any preservative in the machine tool industry works well. For those who drive their cars, I duplicate the hue of the raw hinges and springs after proper prep with epoxy and topcoat. Use Deep Creep for lubrication.

Could you share the paint formula that you use?

No formula. I use what I have in stock and mixed a batch to ahieve the color.

[Petes L48]

So is the consensus that the hinge is zinc, not manganese phosphate, and the spring is neither?

I plan on doing my hinges is a few weeks and have a NOS set of springs in the package that just need cleaned up.  Maybe just Evaporust and oil the springs?   

If the springs are new GM why do you want to treat virgin spring steel with Evaporust? Were they rusted when removed from the package? I have had many hood hinges rebuilt which were supplied with new GM springs. Treat the new springs with the many bare metal protective coatings available if that is your preference. REM oil or any preservative in the machine tool industry works well. For those who drive their cars, I duplicate the hue of the raw hinges and springs after proper prep with epoxy and topcoat. Use Deep Creep for lubrication, same for door hinges.

Upon closer inspection it appears they have an old grease or oily coating inside the original packaging that over time transferred to the clear plastic side.  I'll just clean them up and oil as recommended.  Thanks

[firstgenaddict]

Here are some unrestored original hood hinges and hood catch showing the color differences.

[68camaroz28]

Good info James as always! I found later service replacements utilized darker phosphate compared to originals. Here comparison from my original to later replacement #3910668. Post 269 dated 4/10/10
https://www.camaros.net/forums/133-build-projects/182584-time-another-68-z-28-restored-18.html

This shows our finished product and natural spring steel springs post 361
https://www.camaros.net/forums/133-build-projects/182584-time-another-68-z-28-restored-25.html