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2014 denali rim leak caused by corroding rim

ndogg ct

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ndogg ct Enthusiast

ndogg ct

Posted
Posted

Hey guys has anyone else had a problem with theyre chrome denali rims losing bead because of corrosion?as of now the tite shop put bead sealer and said should be ok for while but other wheels look just as bad and us only a matter of time before the rims loose bead again.this should not be acceptable for a truck bought brand new last year..

muddkatt Senior Enthusiast

muddkatt

Posted
Posted

Wait! Ford is telling everybody that Aluminum doesn't rust. It can't be!

Then Ford would be correct...aluminium corrodes, iron rusts.

newdude Senior Enthusiast

newdude

Posted
Posted

I have the polished aluminum sey rims wondering what can be done to prevent this

 

Do you live in an area of TX that gets snow/salt in the winter? Buy a second set of wheels. The only fix to saving aluminum wheels from corrosion.

stevev Enthusiast

stevev

Posted
Posted

I haven't noticed any issues on my current truck, but had some bead leaks on my past truck and wife's minivan because of this. As you know, the tires lose air pressure when it's colder and it makes it easier for the salt to penetrate the bead/rim lip, so I was told to make sure you keep the tires properly inflated at all times to help prevent it.

TxTruckMan Senior Enthusiast

TxTruckMan

Posted
Posted

Then Ford would be correct...aluminium corrodes, iron rusts.

 

 

Snap...

 

 

Boo ya .....lol

 

That's my point. Ford makes a point in every one of their commercials to say that their trucks won't rust - they're trying to trick ignorant people into thinking that there won't be any problems with corrosion. Not true.

crushNchowda Senior Enthusiast

crushNchowda

Posted
Posted

 

 

 

 

 

That's my point. Ford makes a point in every one of their commercials to say that their trucks won't rust - they're trying to trick ignorant people into thinking that there won't be any problems with corrosion. Not true.

There won't be - AL develops a protective layer of white oxide when bare and exposed to the elements, it doesn't "corrode" or "rust" the way you think of w/ steel. Once the layer of oxide is there, the oxidization stops and thats pretty much it. Cast AL is more porous than rolled sheet AL (which is what the Ford trucks exterior is made with) and you can develop cracks in AL castings over time that have been exposed to EXTREME caustic conditions like acidic air, years and years of heavy salt, etc. - but that is rare and the extreme. The only cast AL parts on a ford truck are the same that would be in a GM truck - suspension components, wheels, motor block, differential and transmission housings.

 

If you have a steel hood and an AL hood and both have been exposed to 150,000 miles of rock chips and salted winter roads, the AL hood will have chips where paint is gone and there may be some white spots and you may be able to rub off a little white dust in extreme instances, but the integrity of the hood will remain, it won't corrode, it and AL oxide - if it is extreme enough to do "run" off when wet and that would be EXTREME - won't damage paint like rust stains do. A steel hood under the same conditions will rust, may corrode & rot through (all depends on the alloy and whether it was galvanized & climate conditions etc.), and you will notice it alot more, rust also will spread and eat away @ parts of the hood that have not been exposed, while AL oxidization is localized and does not spread to areas that weren't exposed.

 

I'm in the metals business....and worked for an AL foundry, and I have intimate knowledge specifically regarding the AL used in the F150, the manufacturing process, and what the long term durability will be like.

 

An AL bodied vehicle definitely has benefits over a comparable steel bodied vehicle.

 

Back to the rim specifically though - what you're seeing isn't necessarily an issue w/ the AL but rather the chrome cladding and it is probably very thick but apparently not very tough, if its thick enough and corrodes down to the cast AL base of the wheel, then yeah you could lose your beads. This has to do w/ the chrome cladding though not because its an AL wheel, all AL wheels have protective coating either painted or polished always w/ a clearcoat on top, chrome wheels are stupid if you drive in winter climates or get them gouged up - the only protective layer for the bare AL is the chrome plating and it corrodes - happens on lots of vehicles w/ chrome rims not just GM trucks. Happened to my buddy's old lincoln LS as a matter of fact.

 

Moral of the story - don't get chrome rims if you live in areas w/ bad winters, extreme weather, and salted roads - or get a 2nd set of wheels for the winter to save the flashy bling rims.

Gmcant33 Enthusiast

Gmcant33

Posted
Posted

Do you live in an area of TX that gets snow/salt in the winter? Buy a second set of wheels. The only fix to saving aluminum wheels from corrosion.

Well south tx it never snows here so I guess that's a plus for me and I assuming keeping them dry helps?

TimmyG Senior Enthusiast

TimmyG

Posted
Posted

Where do you get air in your tires? Excess water doesnt help

 

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