What would cause corrosion in engine bay?

Do you sell propane and propane accessories ?

 

Thanks for the wiki cut and paste. Maybe you can cut and paste that over to my boat engine bay so it knows not to corrode due to galvanic corrosion.

 

your blower is leaking oil, it has oil on it
it should be dry as a bone

the rest of the stuff is normal dirt

 

Your welcome

My point is that a bunch of crusty white spooge all over his engine bay is not galvanic corrosion... half his pics were of plastic parts amigo. He clearly has some sort of fluid or road crap leaving residue in his bay. Hell it's more likely that he used the soap wand at the car wash and did't rinse it off and it dried all crusty like that than having galvanic corrosion on every single surface under his hood or galvanic corrosion on plastic and rubber.

 

I wish I were that cool. Work for a natural gas utility company. Nothing as glamorous as propane accessories...lol

 

Ha. No you are right! That isnt galvanic corrosion that's for sure. Not sure why I initially thought it to be.

 

Is that a s/c I see?

 

Yep, I was there before that storm, during and after. Was epic riding conditions for three hours from the beach!

 

I live in Canada where there's snow on the ground 8 months out of the year you should see my engine bay / undercarriage. I wish mine was as clean as yours.

 

Whatcha thinking he'd need, a 1/2 pound high potential magnesium or maybe a zinc anode?

No joke, it'd sure protect your truck from corroding...but you'd have to park your truck in a pool or bury it for it to work!

- Jake, fellow natural gas worker, formaly edumicated in corrosion technology

But seriously OP; looks like there could be some issues with the supercharger being a big culprit to what you're noticing (and maybe some a sprinkle of salt/beach/road grime thrown in). Try searching the S/C leaking problem and see where you get.

 

make it a positive ground and corrosion slows a lot but good luck getting that done

some old tractors have a + ground and barely any rust after 50+ years

car makers wont change it, they want them to rust out

 

Sorry to burst your bubble sir, but that'd be 100% coincidence on the positive ground tractors being less corroded.

It's conventional current flow (vehicle electrical system principals) versus electron current flow (the principals at work in a corrosion cell).

Add to it the fact that the battery on the tractor/vehicle has nothing to do with how it corrodes. In the case of those two examples, its environment, contaminants, coating of the metal and cleanliness.

 

My dad lives in San Diego 5 blocks from the ocean. He once bought a brand new van, and after 20 years of parking it outside, the entire roof gutter and both front fender wells were completely rotted through. Even the smallest amount of salt will attack metal if it's not well-protected. Condensation that occurs near the ocean will have salt in it, most likely. That's where the white powdery marks are coming from. Also, much of the white powdery stuff in these pictures is on molded plastic (for example in the first and second photos) so of course you don't need to worry about plastic corroding, not in the next 20 years anyway.

Those oil spots under the hood are strange... but some of the underhood components do appear to be weeping or wet.

 

also anywhere near large farms

farm fertilizers and chemicals in the air and dust can corrode lots of things just
like being near the ocean

salted (dust control) dirt roads...that'll do ya too

one single pass behind a leaking (hopefully this never happens)
ammonia truck will make the engine look like psoriasis in a day

 

just by looking at your truck pictured in your signature... looks like the dirt on the truck made its way into the engine bay....

only options here would be maybe water tight seal the engine bay


seems normal


give it a nice bath and come back in the morning, if it is all dirty again and you did not move it from the car port... you might have a problem

 

The supercharger reservoir is known to leak from a little nipple or the fittings. Make sure your reservoir is near topped off.

 

For some reason, I never saw all these responses...anyway, dealer confirmed that it was a coolant leak, one of the hoses from the s/c was leaking. Does coolant cause corrosion? I still don't get why some of the metal parts like the inside of the pulley for example is corroded.

I was able to get them to detail the engine bay for free.

 

Coolant won’t cause corrosion, per say. It actually helps perevent corrosion in the engine. It could lend a hand to corrosion in an open atmosphere as it’s an electrolyte for conducting a galvanic corrosion cell, etc.

What pulley is corroded in the inside, aftermarket supercharger or stock coated metal pulleys?

Without pics and details, it’s likely just normal. Normal for age, normal for salty coastal environment (you were by the coast, right?). Honestly unless parts start showing true build up of corrosion byproducts or developing cavities from metal loss, it’s likely just surface corrosion, which is common on any poorly coated metals, aka many bits on our trucks it turns out. No need for much alarm.

 

It's already been covered, he had a coolant leak. It was just crusty baked coolant.

 

Correct. I was addressing his question about the inside of his pulley showing signs of corrosion and wondering if the coolant played a role there.