The first thing I purchase when I get a new car is the Haynes manual.  While I haven't torn an engine completely apart in years, these manuals have enough information to enable you to do so.  They are usually great for performing almost any job on the car.  Notice on this manual it is for Civic and CR-V.  Most of the manual is dedicated to the CR-V and mentions the Civic is "similar".  Also, my Civic is an EX which has an LED 3rd stop light, which I had to replace.  This manual did not contain information for replacing this light (it is very unlike the light in the other trim models), and I had to get the information through Google.