Smoke from engine bay after exhaust manifold replacement

[shayned]

As the subject says, I’m getting smoke in the engine bay right after I start the engine after I replaced the manifold. Is this normal on a new manifold?

 

[Rob Mayercik]

It could be "manufacturing residue" on the new manifold, or perhaps a light oil coating applied to prevent corrosion while it was on the shelf waiting to be bought.

Is the smoke coming from the vicinity of the manifold?

 

[shayned]

It is coming from that vicinity. I’m just scared that a fire will start. I’m pretty sure I buttoned up everything as I should.

 

[shayned]

It doesn’t start smoking immediately rather 30 seconds after starting. Safe to assume it’s not a gasket leak and just the residue

 

[RCP Phx]

Have you checked to make sure that it is not steam from a leaking header bolt?

 

[Unclewolverine]

Normal. Also normal if you have been working on exhaust with greasy hands.

 

[lawsoncl]

Yeah, just the oils smoking off.