twistedriver

I know that the chain noise question have been ask a few times before. But I found mix answers. So I am hoping someone can clear it up for me. My friend brought a 92 240 with 210000 miles on it. And his car is making the timing chain noise. So my question is that should I removed the chain guides or should I replace them? And to replace the chain guides do I need to remove the distributor? Thanks you!!