Gettng a Chilton type manual is good advice. If you have a digital camera it can also be helpful, Also use masking tape and mark things if necessary. You will probably be surprised at how easy the job is once you get at it. Try not to disconnect any of the hoses if possible. Just take your time, look at what each part is used for and than go for it. If you do have any trouble your local parts store is often a good source for advice.
Good luck