Originally Posted by LarryD
Not really. Please consult "Subject: 8f.11 Installing Cranks" in the rec.bicycles faq
http://www.faqs.org/faqs/bicycles-faq/part4/.
Jobst gives a nice explanation of how taper interfaces work and why floppy cranks are a bad thing.
Yeah, a flloppy crank is a bad thng. They get floppy quicker if not torqued properly ,and even quicker if the bolt ain't there as the OP suggested.Try rining one without a crank bolt. Once the interface gets buggered brom being ridden loose,it is material for the recycle bin.