Join Date: Oct 2006
Location: Evansville, Indiana
Why I'm hesistant to do any wrenching...
This is something that veteran wrenchers probably know, but for someone like me... well, let's just say if it can happen it will happen to me.
Few weeks ago I had to replace a rear tube and swapped the tire out as well. After getting everything back together I had this metal woosh woosh woosh kind of sound coming from what sounded like the front sprocket area. It would, of course, speed up and slow down with the bike and I tried like hell to really nail down where the sound was coming from and what exactly it was. I would turn the bike off and roll down long hills and hear it, but still couldn't determine exactly what it was. I put another 1,000 miles on the bike all the while having this sound come and go, but getting more consistent as time went on. During that time I also had it up on the jack many different times while running it in gear and listening for the woosh and could never hear it. It only happened while riding the damn thing. I finally came to the assumption that I must need a new chain, but it's still quite a coincidence to happen right after the tire swap.
Anyway, I was up at my parents house and was explaining the situation to my dad and we went out to look at it. I went to show him it has normal slack and low and behold.... WTF... the bottom part of the chain was ultratight, but the top had plenty of slack. That was the first time I had seen such a drastic difference and I was completely baffled. I started to think about what the hell could have happened and what was going on and then it hit me like a ton of bricks....
When I put the tire back on I could have easily placed the chain on the rear sprocket one notch different then where it should have been. I figured this could definitely create the exact situation I was looking at here. Well, sure enough, when I got the bike back home I adjusted everything one notch on the rear sprocket and paid close attention to how the top and bottom of the chain tightened up when I pulled the axle all the way back. I made sure both top and bottom were the same tightness. I then pushed the tire forward and finished adjusting everything to the proper slack.
Got on the bike and so far... no woosh!!! wooohoooo.
As I said, if it can happen it will happen to me. I hate all the unknown crap that can happen while wrenching around on stuff. I guess it's a learning curve, but I'm always afraid the learning curve could cost me some pain one of these days when I'm out riding.
I'll put some miles on it tomorrow to verify all this for sure, but I'm pretty positive the problem is solved because the woosh was quite easily heard and I did not hear it on the test ride at all.
Anyone else have an experience like this?
EDIT: I couldn't take it... went out and rode around town and did a lot of the same things I did when I heard the woosh the most and absolutely no woosh to be heard now. I coasted down hill and put a low speed load on it going up hill and still nothing. Problem has been solved. I can't believe the bike ran worth a piss at all with a chain off by one notch. I'm amazed the possibility of this happening isn't mentioned on any chain related discussions.
Last edited by TheWanderer; 07-27-2008 at 01:44 AM.