I was doing some Winter maintenance on my Ultegra calipers (off the frame) and pressed the calipers together to clean out the back of the hinge but the darn things have stuck fast about 1" apart. Before I get too heavy handed, is there a trick to get the calipers to spring back to normal separation ? It feels like the spring is unnaturally positioned but one end is sealed in the Ultegra so I don't think I can get to it.
I was doing some Winter maintenance on my Ultegra calipers (off the frame) and pressed the calipers together to clean out the back of the hinge but the darn things have stuck fast about 1" apart. Before I get too heavy handed, is there a trick to get the calipers to spring back to normal separation ? It feels like the spring is unnaturally positioned but one end is sealed in the Ultegra so I don't think I can get to it.
There are exploded diagrams at the Shimano website. You may have displaced the little plastic bushing for the spring, but they're easy enough to take apart - just watch out for the central thrust bearing assembly, which contains lots of VERY small ball bearings.