Torque Spec for Intake Manifold and TB

[Thurber]

Hello, I couldn't find the numbers I'm looking for on the internet. Does anyone know the torque specs for the both the upper and lower intake manifold as well as the TB.

Thanks.

[1991 E30 M42]

Tighten it till it "feels good" I probably have taken my manifold and tb off 100 times and have never torqued them to spec, I didn't even know there was a spec.

[Thurber]

OK seems reasonable. And a follow-up question: Do you need to replace the gasket every time you remove the Intake manifold. I believe you always need to replace the TB gasket because it's metal but does that also apply to the manifold's?

[1991 E30 M42]

I rarely replace the tb gasket but I always replace the manifold gaskets.

[Thurber]

I see. The exact opposite of what I thought. Duly Noted.

[1991 E30 M42]

I see. The exact opposite of what I thought. Duly Noted.

I also rarely remove the throttle body because I no longer have a heater plate , and the hoses are looped.

[Jimmy Lewis]

The gasket has a pretty big surface area with respect to the size of the opening of the throttle body, just make sure you torque it evenly corner to corner and it should be gravy.