On 25/09/12 13:15, Doug Cimperman wrote:
On 9/24/2012 9:54 PM, James wrote:
On 25/09/12 12:25, 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.


Whoa! I thought you wanted to fix what you have? Before trying to find
replacements, I'd be looking to find out what's wrong with what you've
got. It's quite possibly just a pair of bearings away from good as new.


I can already see that it's not (only) the bearings.
The left crank (that bolts on) is still solid on the spindle. The right
crank is loose on the spindle--and it is the one that's glued on, and
not ever supposed to come loose.

Somebody on bikeforums says it's sometimes possible to re-glue them, but
I don't even care to try.

Also I see many reports of BB30's being noisy......... and mine was
another one of them.

Ooo - that's not good. Yes, it sounds like a replacement is the way to go.

If this would fit in-
http://harriscyclery.net/product/shi...acket-1203.htm

then there's a few cheaper crank choices available.



From the tech manual on this page
http://www.sram.com/service/truvativ/42 it would seem that yours is
likely 68 mm. Measure to be sure, and then I would suspect the Shimano
BB you linked to above would fit. Careful of Italian v English threads,
and make sure to get one with a long enough axle to space the crank set
far enough from the frame.

Mr. A. Muzi will likely have some suggestions for you.

To install the Shimano BB you will need a special tool, and to remove
the cranks in the future a different tool.

--
JS.