Originally Posted by
CACycling
External bearing BBs aren't all that expensive unless you go for the more exotic ones. I picked up a new Ultegra BB off ebay for $30 a few months ago. I would second making sure the cups are tight plus lubing the contact points on the crankset well before assembling. I had some clicking the first time I reassembled mine (all Ultegra but the same concept) and didn't lube the contact points. Started clicking a week or two later. Disassembled, lubed well and it's been quiet every since.
+1
In addition. The left side crankarm has a small 'washer' coated with blue plastic. You can easily lose that upon disassembly. This will make it next to impossible to adjust the crank properly. It is *imperative* that is reassembled with the crank.
The first thing i'd do if I was the OP is to take the crankset and the bb out, and make sure to reinstall with grease everywhere as needed.
1) Shell threads
2) BB threads, centersleeve where it contacts the two cups - and o-ring
3) Thin layer of grease on the crank spindle, the splined interface and the threads where the preload bolt would go