funny sound
 

This is my first post, ive been reading the forums for only about a week now and decided to ask for some help. I drive a 98 Civic LX and when i am at lower RPMs, under 3Kish i get a strange sound. The best i can describe it is like a playing card in a bike tire. It just kind of clicks over and over, but if i rev the engine, it goes away. Friend told me it might be a cracked header, but i have NO idea what it is. Coudl anybody help me out here?

Thanks in advance, and GREAT site.

well it could be that the ceremic in your cat. is broken, it could be that a valve is loose or something of that nature, it could be many things

i think it is the distributor.