[an_orange_s2k]

So I bought my s13 coupe down in socal a week ago, and got all the major maintaince taken care of today. While i was getting the oil changed i noticed that the engine made a clicking noise, took a look and everything was where it's suppose to be nothing touch or anything. Put my hand on the vavle cover and felt a vibration that went along with the noise. im thinking it might be the timing chain which i hope its not. any input guys?