Just don't go to take off your left crank arm while listening to music and talking to friends, put the crank puller on, twist it really hard, strip it's threads and the crank arm threads because you weren't paying attention and forgot to take off the allen >.>
Yeah I did that two days ago, stupid distractions ruined my tool and my crank arm is most likely stuck on for good now. Anyone know if i can use a tap to rethread it?
if you pulled all the threads out, you wont be able to re-tap to the same size, and I doubt they make helicoils large enough.
You can likely still get the crank arm off though, by removing the allen & using a mallet to knock the arm loose. Alternately, can ride with the allen off, but as soon as it begins to loosen up you need to be able to stop as to not risk damaging the BB.
as long as it isn't obviously crooked or wobbly then it's fine. On a side note , I hope you didn't grease the taper, never ever ever grease the taper.
But anyway --I've never see a crank arm that seats completely against the BB shell, there is always a gap, some more some less .. if it's on the taper and your chicken arms can't tighten it anymore then it's on! ... check it in a week for snugness.