A bike I am working on has one that is crushed in. Someone used the wrong flywheel puller blah blah blah. Anyway. This is an older bike with allot of hours on it. Has anyone out there fixed this by drilling a hole? I am guessing a 1/16th of 1/32 would be comparable to the correct inner and outer hole size combination. Any ideas? Are new oil jet inserts available? Could they be pulled out and repaired? thanks.