I bike on my FG at least 4 miles a day and I push it pretty hard and climb alot. When I first got it, the only problem I had was different chain tensions when I had the cranks in different positions eg. a little loose in the chain when left crank was up and tight when it was down. So i attributed that to a not-perfectly-circular chainring.
Anyways now I can feel clicking in my pedals and hear the stress and clicking coming from the chainring when i climb or sometimes when i am just biking on level ground. I inspected my chainring and the screws holding the crank spider to the chainring was loose, almost all 5 of them!! So I bring my bike home, tighten them, but after a day of biking its clicking again, and again, all of the screws are loose!!!
This is scary, because if i'm riding, and they are loose, and I hit a hard bump, i could knock out a screw and lose it. Or even worse, knock them all out, and have my chainring separate from the crank!
So I need help on how to fix this. I'm thinking of just cleaning my bike, WD40 that whole area between the BB and crank. And then just taking out the screws and moving them around to even out the wear on them? I'm afraid i might have stripped the screws or chainring and that would be worse, because right now, I cannot go buying parts with my college student budget.
Please help me!
Here are some pics of it, i was wondering what that washer thing on the backside is for: