I have been meaning to do this for a while. Here is a list of the rebolting Clint and I did last season. We had some new tools to try out(see photos up thread) so we concentrated on wedge bolts in the Discovery Wall/Tourist Trap/Back Door areas. Thanks to Dan Merrick and John Cook for helping out.
Also, I tagged each bolt and send almost all of them to Professor Paul Heyliger, an engineering professor at Colorado State University, for testing. Most of the bolts were about 30 years old and all of them tested to the same specifications as a new wedge bolt for shear strength. Of course that doesn't take into account the actual placement in the rock, but it seems to indicate that the bolts themselves don't seem to be going bad over time.
Discovery Wall
-Mammary Pump
-replaced bolts #2 and #3
-Entrance
-replaced 2nd bolt
-Stupendous Man
replaced bolts #3 and #4
replaced 1 anchor bolt
replaced hanger on other anchor bolt
replaced chains with 7-link 3/8" chain and SS quick links
-Cleft
replaced hanger on bolt #2
replaced bolt #1
-Pistol Whipped
replaced all three protection bolts
-Verdict
replaced right anchor bolt
replaced hangers on center and left anchor bolts
replaced quick links with two SS quick links
replaced 3/8" chain with new 3/8" 5-link chain
replaced hanger on 6th bolt
-Broken Arrow
replaced both anchor bolts
replaced bolts #1, #2, #3, #4 and #5
-Broken Arrow Direct
replaced hanger on protection bolt
Ordeal
-replaced hanger on anchor bolt
-Discovery Wall Rappel
replaced hangers on both anchor bolts
replaced anchor with two SS quick links and 3/8" 5-link chain
-Swallow Crack
replaced one of the anchor bolts
-Bye Bye Fly By
replaced hanger on protection bolt
(Previously rebolted)
-Top anchor Trauma/Plague
replaced both anchor bolts
-Trauma
replaced protection bolt
-Plague
replaced hangers on three protection bolts
(Previously rebolted)
-Wet Kiss
replaced both anchor bolts
replaced quick links with 2 SS quick links and rappel rings
replaced middle bolt anchor chain with 2 SS quick links and 5/16" chain
replaced #1, #4, #5 protection bolts
replaced hanger on #2 protection bolt
-Portent right finish
replaced lone anchor/directional bolt
-Cosmos
replaced both anchor bolts
put SS links with Mussy hooks
replaced hanger on #1 protection bolt
replaced bolts #5, #7 and #8
replaced hanger on bolt #6
Tourist Trap
-Thrill Hammer
replaced both anchor bolts
replaced quick links with SS quick links
replaced #2, #4, #5, #6 protecton bolts
-Rat Race
replaced quick links at anchor with SS quick links
Backdoor/Tiburcio's
-Auto Cream
replaced both anchor bolts
-Limp at Last
replaced one anchor bolt
-Tiburcios X
replaced one anchor bolt
added Fixe double ring hangers to two anchor bolts
-Camel
replaced hanger on 3rd bolt of Ali Baba w/SS hanger