2006 F250 Exhaust Manifold

[eaglelake2007]

I was under the truck and noticed that there is exhaust marks from the attaching points of the exhaust manifold to the cyl. This is on the right side only. My truck only has 11k miles on it. The marks are about 1/2 inch by 1 inch on each of the 4 attaching points.

Thanks for any info.

[Clay Henry]

Originally Posted by eaglelake2007

I was under the truck and noticed that there is exhaust marks from the attaching points of the exhaust manifold to the cyl. This is on the right side only. My truck only has 11k miles on it. The marks are about 1/2 inch by 1 inch on each of the 4 attaching points.

Thanks for any info.

Perfectly normal.
Theres no gasket as i understand it and when it gets good and hot the metal swells and it seals up but when its cold it will have some blowby that makes those marks. Mine the same.

[bfloyd4445]

Originally Posted by eaglelake2007

I was under the truck and noticed that there is exhaust marks from the attaching points of the exhaust manifold to the cyl. This is on the right side only. My truck only has 11k miles on it. The marks are about 1/2 inch by 1 inch on each of the 4 attaching points.

Thanks for any info.

I'll have to look at mine which has 8,000 on it. Thanks for the info.