My water bypass hose busted and sprayed antifreeze all over. As a result my 99 civic ex overheated.

I've cleaned up a decent amount of the antifreeze in the engine bay, replaced the hose and topped off the coolant. Today I drove for about an hour on two separate occassions and put about 75-100 miles on the car without any problems overheating (temperature gauge shows the needle 1/3 of the way to the H redline). After turning off the engine, there is still a slight burning smell that gets worse once the hood is opened. I don't see any leaks and the car seems to be running fine. Should I be worried about the burning smell? Any easy things to check?

 

To be honest, it sounds like you just have some hiding in a crevas somewhere in the engine bay, getting hot and burning off a little.

If the coolant level is staying even and full, and the car temperature isn't going red then you should be ok. You can always hose the engine down a little where it happened and try to flush some of it off, but it will burn off soon enough.

I had my timing belt and water pump changed a few months ago, and some coolant got on my mainfold, it smelled like anti-freeze for a few weeks before it went away.

Of course, if it persists for a long period, or you notice it only when using the heat inside the car, that could be a different issue all in itself. I would give it some time myself, and just keep looking to make sure you don't have a leak.

 

+1 but keep an eye on it.

 

+2, i would give it time to burn off.

 

+3