On Mon, 24 Sep 2012 21:25:22 -0500, Doug Cimperman
wrote:

On 9/24/2012 6:03 PM, James wrote:
On 25/09/12 08:41, Doug Cimperman wrote:
Today I see the drive-side crank here is loose on the spindle. The
non-drive side moves a much smaller bit, that appears to be the bearing
play (it could probably use new bearings anyway).

I never much got into bicycle mechanics really, so what [special] tools
would I need to get this thing apart, and what kind of crank is it
exactly? (to get a replacement, if it can't just be tightened up,,,) \

The spindle is a tube that runs almost all the way through from the
drive side, to the non-drive side....

http://www.norcom2000.com/users/dcim...s/loose01.html



Looks similar to this?

http://www.sram.com/truvativ/products/truvativ-gxp-bb

A quick google search yields..

http://www.youtube.com/watch?v=RB1wcwlmsRc


I have an arbor press and torque wrenches.

Is it possible to install a square-taper BB into the frame? I'm not
finding much available in the road 130/74 category that doesn't cost
huge sums of money.

This is the only drop-in I have found so far-
http://www.nashbar.com/bikes/Product...0#ReviewHeader
(FSA Gossamer MegaExo Triple Crankset)

The other two are square-taper, one is 118 and one is 122mm.

Rather then an entire new BB and the cranks to fit it, it is probably
possible to replace the bearings in the existing BB. See
http://www.youtube.com/watch?v=UAqAa...eature=related
for a pretty good explanation, or
http://www.youtube.com/watch?v=yWdSqn81MAk
for a somewhat less elegant explanation of how to do it.

--
Cheers,
John B.