On Mon, 24 Sep 2012 22:15:13 -0500, 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.

If this would fit in-
http://harriscyclery.net/product/shi...acket-1203.htm
then there's a few cheaper crank choices available.


Sorry, I previously posted a suggestion to change the bearings. It is
likely that you have the usual "English" thread in the BB but to be
sure take a bearing housing with you when you go shopping. The older
style, one piece, BB's are made in various axle lengths, which have an
effect on the chain line. It also varies on whether you use a one, two
or three chain ring crank. To install the one piece BB takes a special
wrench and there seem to be several different tools available - few,
if any, are interchangeable.

Once you get the BB installed there are at least two different tapers
used so the new cranks will need to match the BB. You can put them on
with common hand tools but you a "crank puller" to get them off.

To be blunt, if you don't have the tools and you don't have the
experience this is likely a job that you would be better off to have
done for you. I would assume that if you bought the new BB and crank
set from a shop that installation would be minimal, or free.

--
Cheers,
John B.