When to tell if the crank is bad or not

I took my crank out of the bike. The bike was making a terrible sound. Everything from the piston to the bearings looks great, no cracks, no shavings, oil looks black though. Well I took the crank out and while holding it in one hand, I put my hand on the rod and began to turn the crank. It turned, but I could feel a dud.dud.dud.dud. If I look at the crank and where the rod connects, I could see the brearing, but it doesn't look like a beaing, it just has slots in it, there are no little pins, like the piece for the piston. How do I know if this crank is shot or not?, It turns, but not buttery free. Should it?, its my first crank I have ever took out of my bike. Thanks

take some pictures...

If your already this far...buy a new crank and be done with it.

Your crank should turn free, and smooth. It sounds like it's bad.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now