Rust on Engine?

[Christarelly]

We have found a bus and are hesitant about the engine photos. I would like opinions on if the rust.
Is it a big deal or I does it look concerning

[BlackJohn]

Be more concerned that that engine is a CAT C7 then the rust.

Do your due diligence in this case.


John

[david.dgeorge07]

I have a cat 3126. This rust doesn’t look too bad to me...

Look up adept ape channel on YouTube for a good breakdown of CAT motors. There are some things that make the 3126 more desirable than the C7, but there are people out there getting good service from them.

[Johnny Mullet]

That rust is nothing to worry about.

[o1marc]

Worst rust is on the exhaust manifold and nothing to worry about, they are a cast iron and have no coating due to the high temps they see. Nothing else I see is a concern either.

[Christarelly]

Thank you guys for being so helpful!