Hello Honda-tech!!

I have lurked for a while and now I finally have a problem worth asking! I have a 1997 Honda Delsol SI with a stock D16y8 and a automatic transmission (sucks) and 168k on it. I was changing a headlight today and checking the electrical system when I noticed that the engine has an audible clicking noise near cylinder #4. the noise only is audible when the engine gets too operating temperature and the noise speeds up when I rev the engine. I took my ratchet and listened too the noises around the cylinder head and close too the fuel injector but I could here it clicking the most when I put the ratchet right on the fuel injector.

After investigating with google I see that it is normal for fuel injectors too make a clicking nose but usually dulls down when the engine gets too operating temp. but this is the opposite. Any tips too go about diagnosing what it is?

 

*bump*