About 6 months ago, the left crankarm of the Fuel became wobbly as I pedaled, and after about 3 seconds later it just fell off. Luckily, since I carry a hex wrench set in my pack, I just screwed it back onto the bike. Usually after every 100 miles or so, I tighten that screw so that doesn't happen. Well yesterday the crank became wobbly and I pulled over immediately on the shoulder before the crankarm would fall off in the middle of traffic, heh.
And what do I find out? The bolt won't tighten at all. It feels like it got about 60% tight at one point then warps back to about 20% tight and the cycle repeats it self. What is going on?! I had my camera with me so I took a shot while I waited for a ride.
The left screw thing is stuck in the crank arm hole. I honestly can't remember if it's supposed to come out, but it's stuck there. (the circular thing with a camel/tan color goop)