94 325i Timing chain guide

I just bought a 94 325i and after a few weeks I felt a decrease in power and a strange clunking noise from the front of the engine. I called a family friend over that has worked on BMW's for 20 something years and he noticed when I first accelerate the noise is very loud and when I speed up it goes away. So he suggested checking the timing chain guides and asked me to find the diagram for them. Where would I be able to find the diagram and if i was to buy a manual which manual would best help me on this car?

sorry if my description is a little vague.

http://www.bimmerfest.com/forums/sho...d.php?t=466604

The above thread contains links for a PDF version of the Bentley manual for the E36. This is far and away the best manual to have. With a digital version you can print the relevant pages.
Almost all diagrams are located at www.realoem.com . Just enter your car info and it will ask you questions till you get there for the most part. All of this is located in the "Stickies" at the top of this forum. One of the best things you can do for you and your car is to go through them and read them. You will learn a lot from them and it will help you ask more pointed and specific questions that can help us help you if you need it.
Welcome to the 'Fest! And congrats on your new purchase.

From your description it is probably a knock. There could be many reasons, but for starters, I would remove and re-insert all of the spark plugs (or replace them, which would be even better)