Exhaust manifold leak

[5-O Cummins]

While checking things under the hood with the truck running, I reved the engine and noticed an exhaust leak. The leak was where the exhaust manifold bolts up to the turbo. I tried to tighten the bolts but they didn't want to budge. Should I just leave it or do you think I need a new gasket there?

[ISX]

A new gasket might do the trick. I am just wondering how it came to leak there. Use lots of penetrating oil and let it soak for a good amount of time (at least an hour) before taking those bolts out, makes life much easier.

[5-O Cummins]

A new gasket might do the trick. I am just wondering how it came to leak there. Use lots of penetrating oil and let it soak for a good amount of time (at least an hour) before taking those bolts out, makes life much easier.

Ok thanks. I'm guessing the previous owner(s) had something done to it over the past 14 years. Anywhere in particular I should get the gasket from, part #?

[ISX]

Anywhere that sells them. I don't have any preferences on who I buy a steel gasket from.

[5-O Cummins]

I'll give my local Cummins a shout.