Rust everywhere

[JeepViking13]

Thank you for the advice, the dealer had it fully redone with dry ice blasting and then recoating so it came up really well. was just curious to see if this was a common occurrence. I'm in Sydney so would've taken a while to get here plus salty roads and possible ocean spray, The rust was pretty bad so it was a rather unpleasant surprise when I found so much under the car especially when it was brand new and they are rather expensive over here.

I'm sure crossing the Ocean didn't help it any. With that said it would be hard for me to take delivery of a brand new vehicle looking like that.

I'm sure the majority of it is surface rust but still. They really need to spray better rust protection on at the factory.

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[Fitzy1]

Coming to the party late on this. The rust in the OPs pics is really not that bad. Looks like mostly just surface problems that are normal.

The body panels are made wit galvanized steel which is simply a zinc coating and that makes them naturally rust resistant. The axles where the tubs go into the pumpkin, normal. The pumpkin is cast iron most likely and the axle tube is steel. The other components underneath are rolled or stamped steel which is likely not galvanized which is why you are seeing surface rust on them. If it concerns you then wire brush, treat, and then paint. We used some stuff in the mills called zophar https://www.go2marine.com/Zophar-20-Black-Heavy-Duty-Paint to paint them and make it rust resistant. Stuff is not cheap and can probably be found for less $$ than my link but it works very well.

The exhaust looks to be stainless steel tubing which should not rust BUT seeing rust on it tells me its a low grade SS with additional iron content than most SS exhaust systems. Jeep aimed to save a few coins with that.

The heat shields I thought were aluminum based on how they look but I could be wrong. Now where aluminum and steel come into direct contact there will be a galvanic reaction that occurs and creates corrosion. You normally want to have some sort of barrier between them. Back in college I worked a summer at a semi trailer manufacturer. In a few applications we mounted a steel "skid" plate on the aluminum box and basically just lined them with a heavy clear packing tape.

Thanks for the info. I agree with your summation however to someone that's never experienced this b4 and that was pretty chuffed at finally being able to afford this car I was pretty peeved and concerned when I discovered it esp being a brand new car with 27 km on it - However all good now though

 

[OrneryBear]

How is ospho different than rustoleum?

I always thought you could just spray some rustoleum over the rusty metal and that would stop it from spreading. Just wondering if I should change up what I do.

Rustoleum supposedly stops rust, but not as effectively as a chemical conversion product like ospho. From ospho's site, "OSPHO is a balanced formula of Phosphoric acid, Sodium Dichromate, Surfactants, and Extenders.".

Simply put it's an acid.

I like to do ospho or similar product, and then hit it with a protective coating.

 

[Deleted member 59498]

Not like they ship cars across the ocean out in the open getting sprayed with salt water. Haha they are in the hold.

Looks like they took a crane and dipped his in the ocean though.

 

[nU7OuxIx]

Rustoleum supposedly stops rust, but not as effectively as a chemical conversion product like ospho. From ospho's site, "OSPHO is a balanced formula of Phosphoric acid, Sodium Dichromate, Surfactants, and Extenders.".

Simply put it's an acid.

I like to do ospho or similar product, and then hit it with a protective coating.

Thanks, that's good to know. In general, I don't recall any rusty spots I covered on my jeep. It's mostly been fresh scrapes from rocks.

Nonetheless, I think I'm going to add ospho to my regime.

 

[OrneryBear]

Thanks, that's good to know. In general, I don't recall any rusty spots I covered on my jeep. It's mostly been fresh scrapes from rocks.

Nonetheless, I think I'm going to add ospho to my regime.

Sounds like you did the right thing. I always get nervous about just spraying rustoleum directly over rust, sure I've done it, but in the back of my mind I'm always thinking its just a bandaid. putting a little ospho in a spray bottle and spraying areas first (removing scale/grinding/sanding if its bad first), and then hitting it with a coating always makes me feel like I did actual preventative care/repair.

 

[Morrepe]

For comparison, here is the bottom of my daughter’s 2014 JK. Never been treated with anything but has lived most of its life in CA. Over 65k miles.

 

[OrneryBear]

For comparison, here is the bottom of my daughter’s 2014 JK. Never been treated with anything but has lived most of its life in CA. Over 65k miles.

I mean, using a CA vehicle as comparison to almost any other region isn't fair, and I mean that in a good way. I have an 1987 honda crx that spent it's life in california and the underside looks this good, and those were made with thin crappy metal.

 

[Ang1Sgt]

For comparison, here is the bottom of my daughter’s 2014 JK. Never been treated with anything but has lived most of its life in CA. Over 65k miles.

Gosh my 2013 JK didn’t look that good “NEW” back in 2013!

 

[Morrepe]

Gosh my 2013 JK didn’t look that good “NEW” back in 2013!

Yeah. I was pretty surprised when my mechanic sent me this pic.

 

[Morrepe]

I mean, using a CA vehicle as comparison to almost any other region isn't fair, and I mean that in a good way. I have an 1987 honda crx that spent it's life in california and the underside looks this good, and those were made with thin crappy metal.

Yeah, but a newly delivered vehicle should look at least as good. That’s why I offered as comparison for OP.

 

[aville65]

Normal. These things sit outside at the plant. Bare steel will get a coating of surface rust, unavoidable really.

Surface rust or not, I would’ve taken it back to Mr Dealer and let them properly dealer prep that thing.
We pay a good dollar for these toys and in my opinion that is unacceptable. Their markup is high enough to do a clean and undercoating.

 

[slowpoke387]

Surface rust or not, I would’ve taken it back to Mr Dealer and let them properly dealer prep that thing.
We pay a good dollar for these toys and in my opinion that is unacceptable. Their markup is high enough to do a clean and undercoating.

How much we pay is irrelevant. Bare steel parts develop surface rust. No dealer is going to paint every exposed bare steel part. These things are going to look like that pretty shortly after delivery anyway unless someone never drives outside. I’m not saying I like it but this is not unusual or even excessive. It’s just what steel does. Look at your brake rotors after sitting out in the rain for a couple of days. Same thing. Although hey if we can get dealers to paint these parts I’m all for it.

 

[TaiMc]

any one taken possession of a brand new jeep only to get home and whilst checking it out finds the undercarriage covered in rust ??


I've been asked to attach some Pics. Please remember that this is what I saw when I got home from picking it up. I've had plenty of new cars over the years and NEVER expected to see a brand new car in this condition. Really dampening my excitement of picking it up - and yes still get excited even though im 65!

Yikess???.... what's the build date?

 

[TaiMc]

One thing I would recommend instead of spraying the welds with Rustoleum is to buy a can of it and brush the welds instead. It will look much better and last longer. Spray cans are hard to use under a vehicle and the overspray looks bad.

I recommend cutting it with 10% mineral spirits and using a narrow brush that will make it easy to just coat the welds. I used to build and paint water towers in my youth, so I did a lot of welding, grinding, blasting and painting.

Okay...will try to do this soon. I've been under my Jeep to change the oil on it 3 times, but never noticed rust as bad as the OP...maybe I just disregarded it. I'll have a look and use your method. ?

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