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Old 11-13-2009, 07:46 AM   #1
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Question Engine Rust

I am about to pick up a 2LT RS that I found on a lot. While looking under the hood I noticed what looked like some rust on the side of the engine. Is this normal or is it something I should be concerned about.
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Old 11-13-2009, 07:53 AM   #2
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Most likely the cast iron exhaust manifolds, which not be a problem.
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Old 11-13-2009, 07:58 AM   #3
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Most likely the cast iron exhaust manifolds, which not be a problem.
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Old 11-13-2009, 07:59 AM   #4
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If I am remembering correctly, yes, I think it was on the exhaust manifolds. I am just paranoid about spending all this money and not getting a car that is in perfect condition. But if you say that is nothing to worry about, then I will try and put it out of my mind.
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Old 11-13-2009, 08:52 AM   #5
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Normal, don't sweat it. All cast iron manifolds do it.
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Old 11-13-2009, 08:59 AM   #6
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Rotors will have rust too..don't panic.
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Old 11-13-2009, 01:05 PM   #7
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But if they are rusting already won't you hAve to replace them somewhat sooner ?
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Old 11-13-2009, 01:15 PM   #8
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Well how much are you paying for it? It should still be under warranty correct?
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Old 11-13-2009, 01:22 PM   #9
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Quote:
Originally Posted by hollywoodjose View Post
But if they are rusting already won't you hAve to replace them somewhat sooner ?

stock steel exhaust manifolds on EVERY car in the world rust. its uncoated steel. you dont need to replace them. unless you are swapping for headers.
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Old 11-13-2009, 01:23 PM   #10
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Exhaust manifold surface rust is not something to worry about. It is normal. It will look like that as long as the car exists. Go look at an unrestored car from 20-30-40 years ago. The exhaust manifold will look the same.

Brake rotors will have surface rust anytime they are exposed to moisture, whether from rain or ambient humidity. It goes away the first time you use the brakes after seeing it.

Enjoy that bad boy!
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Old 11-13-2009, 01:25 PM   #11
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Brake rotors will have surface rust anytime they are exposed to moisture, whether from rain or ambient humidity. It goes away the first time you use the brakes after seeing it.

Enjoy that bad boy!
Your rotors will look rusty every time you wash it too.
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Old 11-13-2009, 06:06 PM   #12
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Gold!

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Your rotors will look rusty every time you wash it too.
Mine turn gold just after I wash it!
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Old 11-13-2009, 06:48 PM   #13
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I don't know if anyone else has mentoned it yet, but its probably the exhaust manifold. COmpletely normal.

Oh, and by the way, your rotars will rust too when you wash the car. Also normal.

Just in case no one mentioned it.
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Old 11-13-2009, 09:11 PM   #14
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Rotors will have rust too..don't panic.
You're not kidding. I sprayed my wheels off with a hose and I could watch the rust form on the bare rotor like magic. I could SEE it forming.

But if the OP thinks the Camaro rust was a defect, good thing he didn't get a GT500!
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Old 11-13-2009, 09:14 PM   #15
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But if they are rusting already won't you hAve to replace them somewhat sooner ?
No. The manifolds are made of very thick metal. It would take decades of constant exposure to water to cause them to rust to the point of replacement. The film of rust on the surface can actually help seal the moisture away from the raw metal too. Once the film forms it slows down the reaction.
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Old 11-13-2009, 09:20 PM   #16
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No. The manifolds are made of very thick metal. It would take decades of constant exposure to water to cause them to rust to the point of replacement. The film of rust on the surface can actually help seal the moisture away from the raw metal too. Once the film forms it slows down the reaction.
Yea, they crack from being heat cycled before they rust threw. we'll all be dead before that happens.
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Old 11-13-2009, 09:32 PM   #17
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Yea, they crack from being heat cycled before they rust threw. we'll all be dead before that happens.
There's a junk car from the 1950's in the woods near my house. It's been there since the early 60's just sitting there and being shot at by hunters and rednecks target shooting. The hood and doors are all open and it's been smashed inside and out. The exhaust manifolds look like the ones on any other car with cast iron manifolds. If you could cut the bolts off you could probably re-use them.
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Old 11-13-2009, 11:12 PM   #18
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At 2200 miles, mine only have rust on the rearward inch or so, everything else looks clean with kind of a grey finish. I'm in CA, and I think different climates tend to rust sooner. Not very humid here.
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Old 11-14-2009, 12:37 AM   #19
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I thought this would be another Rustang thread.
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Old 11-14-2009, 03:42 AM   #20
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You're not kidding. I sprayed my wheels off with a hose and I could watch the rust form on the bare rotor like magic. I could SEE it forming.

But if the OP thinks the Camaro rust was a defect, good thing he didn't get a GT500!
Your not kidding now this kind of stuff in the following pictures is not normal

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Old 07-08-2011, 09:20 AM   #21
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About to make the purchase myself. Looking at a Black 2SS used 2011 w/1000 miles. I have had asian cars for the past 15-20 years and they must not use cast iron? Time to buy american... Anywho, I am no car junkie but love to learn. The rust thing will bother me since the mani's are exposed. I was thinking of replacing them with long headers, but how can I maximize the HP, any suggestions on type, etc...?
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Old 07-08-2011, 12:41 PM   #22
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Your not kidding now this kind of stuff in the following pictures is not normal
User location = Ontario = salt climate. Go look at any other car with just as many miles that sees moisture from the roads around there.
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Old 07-08-2011, 12:43 PM   #23
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About to make the purchase myself. Looking at a Black 2SS used 2011 w/1000 miles. I have had asian cars for the past 15-20 years and they must not use cast iron? Time to buy american... Anywho, I am no car junkie but love to learn. The rust thing will bother me since the mani's are exposed. I was thinking of replacing them with long headers, but how can I maximize the HP, any suggestions on type, etc...?
You're kidding me, right?

Guess which automaker this exhaust manifold is from.

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