intake and exhaust question

[kwisor]

hello
it looks like I need to have them straighten I noticed when it is running there is exhaust smoke coming from behind the manifold is this something a good machine shop can do
kevin
1930 tudor
1923 model t roadster p/u

[jax55]

Is it only smoking in the back at number four or all along the manifold?
Is the manifold leaking or could there be oil/water from the head gasket burning off?
If only at number four, check for droop from the exhaust pipe hanging there,
If a leak fix it first.
Never done it, but see on the Barn where using sandpaper on a flat surface, you can do it yourself.
And yes, a machine shop can do it as well.

[BRENT in 10-uh-C]

Start by determining what gasket is being used. It is possible the gasket was/is a cheap paper one that has burned thru. With the manifold off, a straight edge will tell you the exhaust manifold straightness however you also need to check for the manifold being drooped at the #3 or #4 port area. I have a fixture that I can straighten a manifold however it is not worth using on a manifold that is worn in other areas too. I concur that a good machine shop can set up to flycut the manifolds.

[kwisor]

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hello I used the copper gasket and it looks like from behind the 2 and 3 cyl the motor only has about 150 miles since rebuild
kevin