To much rust?

[lcm0027]

I’ve been detailing my Cummins and came across parts that are rusty a little more than I am sure of. What do you guys think. To much rust or is it okay? What should I spray on it?

[lcm0027]

Another angle

[Zork]

Originally Posted by lcm0027

Attachment 62568Another angle

These are pictures of the engine block?

[o1marc]

The scaling on that block looks like it's been under water, for a long time.

[lcm0027]

Runs like a champ. Only 99k miles. I’ve got some POR15 on the way.

[Zork]

Originally Posted by lcm0027

Runs like a champ. Only 99k miles. I’ve got some POR15 on the way.

You'll get the same protection using liberal, regular applications of WD-40. That is its purpose, preventing corrosion (and not lubrication). And you'll keep more of your money.

[lcm0027]

Originally Posted by Zork

You'll get the same protection using liberal, regular applications of WD-40. That is its purpose, preventing corrosion (and not lubrication). And you'll keep more of your money.

So you’d recommend spraying it down with WD40? Should I continue to chip away at all that rust?

[Zork]

Originally Posted by lcm0027

So you’d recommend spraying it down with WD40? Should I continue to chip away at all that rust?

Chip??? No, use a wire brush. And spray it down regularly and copiously with WD-40, then let it dry. The film it leaves behind is what protects from corrosion, it's what the product is designed to do (WD = Water Displacement). Works wonders as well on aircraft in places close to the ocean, and on boats. Just don't put it where you don't want any dust to accumulate. The film attracts it and gums everything up.

[lcm0027]

I’ve heard WD40 is widely misunderstood as a lube and not for water displacement like you stated. I still think I’m going to use the 3 step POR15 rust stuff on these really bad spots but I will use WD40 on these other parts around the bus that has minor rust that I don’t want to do a 3step process.

[ewo1]

Originally Posted by lcm0027

I’ve heard WD40 is widely misunderstood as a lube and not for water displacement like you stated. I still think I’m going to use the 3 step POR15 rust stuff on these really bad spots but I will use WD40 on these other parts around the bus that has minor rust that I don’t want to do a 3step process.

Wire brush, Ospho then paint!
That’s what I do on my bus.