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Yikes !! Crank noise!(7 posts)

Yikes !! Crank noise!seejoy
Sep 10, 2002 5:51 PM
Ok. I posted awhile ago about a Cannondale R500 I was thinking of buying from a friend for $300- plus a trade in on my old bike. I decided to get it feeling it was an ok choice as I am just starting out on a road bike.About 60 miles a week average.
I have been riding it for over a month and had noticed from the start a slight "sker-ek" from what I thought was the right crank. (The left crank did not match the right when I got the bike.)I thought it might be my shoe.I'm using an inexpensive pair of Shimano SPD road shoes, and they are a tad loose as I bought mens. So I let it go. The sound stayed the same but I did not hear it all the time.The more I spun, and was light footed on the pedal, the less I heard it.
Tonight I wore my Shimano mountain bike shoes to see if the sound went away with a different shoe and as soon as I stepped on the right pedal to exit the parking lot I heard a very ugly "sker-eek"!!Rotational in nature and worst from 12 o'clock to 3 on the drown stroke.
Uh-oh.This is not a good sound. Took the bike home and got on my mountain bike, knobby tires and all to squeeze my rode ride in....
Any ideas on what it could be? Do I take it back to my friend and have him look at it? Did I break it by ignoring the original small "sker-ek"?
He had bought this bike from someone, fixed it up, and never really rode it himself.
Anyway, I bought the bike because it fit and it was in my price range. I do not have extra money to spend if it is big time broken. What does it normally cost to repair the thing the crank attaches to in the hub thing?(ok, I'm not sure what you call it! LOL)
Darn, I want my "road" bike on the road!
Thanks for your input!
Relax, probably not a big deal...cabinfever
Sep 11, 2002 4:56 AM
I'm not sure what the noise is, there could be many causes. But the part you are referring to is a Bottom Bracket, and a decent cartridge-type Ultegra BB is only like $35. You may not even need one. A shop should be able to look at it and help determine the cost for little money, if your friend isn't willing to do it.
Re:Relax, probably not a big deal...seejoy
Sep 11, 2002 5:46 AM
I am dumber than dirt...had alittle panic attack last night.This morning I brought the bike into work with me and my friend looked at it. The right crank is loose, and needs to be tightened. The "bottom bracket", I will remember that! (And I will learn more about the parts on both bikes!)
The left crank was bent when my friend bought it and he replaced it with the same length crank, they do not match looks wise but that is no big deal.
Thanks alot for your reply!
PS>By the way, do you put grease or lube in the bottom bracket?
Greasing and lubing...cabinfever
Sep 11, 2002 7:47 AM
If it is a cartridge bottom bracket like a 105 or Ultegra, you need grease and/or lock tite for the threads. I forget what goes where, but Park Tool has a great site for this exact purpose.

http://www.parktool.com/repair_help/FAQcartdg.shtml
BBFez
Sep 11, 2002 5:05 AM
Like what cabinfever said, could be the bottom bracket. A decent Shimano cartridge style Ultegra or 105 BB is not expensive.

But what's up with the cranks not matching? Ordinarily not a problem, but at least make sure each one is the same size and compatible w/ the BB setup you have.
RE:BBseejoy
Sep 11, 2002 7:06 AM
Thank you!
KY Jelly might help. (nm)Quack
Sep 11, 2002 12:47 PM