Rust prevention in the engine room.

[serpa4]

I need to wire brush a few fittings and bolts in the engine room.
After removing the corrosion rust or oxidation, what would you put on the various metal pieces to prevent future corrosion?

 

[Levitation]

MRO Chem Black Star rust convertor. (Amazon) Used on oil rigs. I use it on the farm. Then spray color of choice over the cured convertor.

 

[BB marine]

For years as a marine technician I carried CRC marine 6-56. I purchase it by the gallon and use a spray bottle to apply. When I finished working on an engine I would give it a spray. Light mist would coat the surfaces and help prevent rust and corrosion. The wet lubricant dries and leaves a protective coat. Works good on electrical connections for moisture removal.

This is a great application for outboard power heads and components along with inboards. I have been using a form of this CRC product for 40 years and have a positive review.


https://www.amazon.com/gp/product/B0000 ... UTF8&psc=1

 

[B95054]

I have used wd30 for over 30 years. A light coating to the entire engine. It just works and is always on hand!

 

[knotflying]

I use Sta-bil Rust stopper on any exposed metal. If you are going to paint I would follow Levitation's instructions.