Originally Posted by
Johno59
I just had a thought. When it rains does some of that lubricant that keeps smooth all the pivots/bushes/springs/bells/whistles behind the front cover, dribble down the housing, run along the caliper arm and onto the face of the pad wherein it deservedly kills you for taking it out in the rain!
I never really tore down my Deltas but from what I coupld see, I think pretty much all of the pivots run on "plain" bearings, (I think they have bronze bushings on the main pivots.) IIRC. So I assume they can be badly affected by contamination from road grit. The big problem with the Deltas is, the caliper casing tends to accumulate/retain a lot of road grit.
I could not believe how much grit I had to flush out of the calipers, the first time I cleaned them.