Yes, overfilling can cause smoking, and you need to drain the extra out.
Yes
You could possibilly blow the head on the engine! It will blow black smoke out of the muffle.
If you nicked the oil pan it could cause it to smoke from engine area. Is the smoke coming from the exhaust or engine bay? If exhaust, then I highly doubt it was caused by the curb incident.
yes...the lack of air would causes excessive fuel which would cause black smoke.
This engine could have burnt rings in it. There also could be an old leak which is running down on the manifold which would cause the engine to smoke.
This is not that uncommon. Some oil is so hot that it will start to smoke. The smoke can escape through this opening to the engine.
Not usually. If the rocker arms are loose because the cam lobes are worn down, that could be an indication of a worn engine, which might have bad rings or loose valve guides, which would cause an engine to smoke.
Water in engine-head gasket most likely.
Could be a bad head gasket. You would get engine oil leaking into the cylinder heads and that would show as smoke out the tail pipe.
engine coolant getting into an engine cylinder from a bad head gasket , cracked or warped head
No, any smoke is coming from the engine.No, any smoke is coming from the engine.
overheating of the engine.