I noticed something interesting on yesterday's commute home - about halfway home, the regular clicking sound that I think is coming from my freewheel body completely stopped, and I didn't hear it for the rest of that commute, or the commute to work this morning
. On the weekend, I had removed, cleaned, greased and reinstalled the rear hub and freewheel body, putting some high-viscosity chain oil into the freewheel body while I was at it. However, during my Monday to Wednesday commutes, and the ride to work on Thursday, the clicking sound continued. I was planning to replace the freewheel body this coming weekend, but now I'm not so sure: perhaps I should just wait and see if the clicking noise returns. Very intriguing! It's almost as if something shifted inside the ratchet-and-pawl mechanism to eliminate the source of the noise?
By the way, I found this interesting article on the various freewheel body (sometimes termed 'freehub body') designs, definitely worth a read
http://dirt.mpora.com/news/work-freehub-body.html