Re: New years bah humbug

On Thu, 02 Jan 2025 16:18:21 GMT, cyclintom <cyclintom@yahoo.com>
wrote:

On Wed Jan 1 17:18:49 2025 Jeff Liebermann  wrote:

On Wed, 01 Jan 2025 18:58:09 GMT, cyclintom <cyclintom@yahoo.com>
wrote:
 
 

Tell me again about how I should know that a crankset is getting loose when it is splined and isn't loose until it falls off.

 
If you description is correct and it's the left crank that's trying to
fall off, it needs to slide off the spindle to the left about 1/2 inch
before falling off.  It will probably happen in a series of small
lurches instead of one monumental slide towards oblivion.  That you
give you plenty of time to notice that your left leg feels rather odd
trying to apply pressure, at an angle, to the left pedal. 
 
If it's the right crank, it will need to slide to a larger distance.
However, that doesn't matter because the sliding will cause the chain
line to be misaligned.  That should produce a tangled chain and
probably a sudden stop before the crank and chainring fall off the
spindle.  You should also notice the right shifter indexing to be
moving to the right.

Why are you talking about things you know nothing about? Why would it "lurch" and how would you detect that 3whie pedaling over bumps and potholes? You do not ride bikes so stop pretending to know about them.

If the crank and pedal spline was so loose that it could slide
smoothly back and forth, you would certainly have noticed a rather
wobbly ride.  If the spline is only slightly loose, you would have
experienced grinding and creaking noises while pealing.  Unless you're
using a gear (or crank) puller, which pulls the crank straight out,
you would might find that the edges of the splines will dig into the
mating splines, causing the lurches.  If you've ever manually removed
a pulley, flywheel or gear that requires a gear puller to remove,
using a pry bar or screwdriver, you probably would have experienced
the lurches as the spline edges are destroyed on their way out.  While
it might be interesting to troubleshoot such a loose crank problem
while riding over bumps and potholes, troubleshooting procedure
generally don't involve adding such rides to make things more
difficult to detect.  For what it's worth, I have about 6 ft of 1/8"
ID rubber hose that I use for noise troubleshooting.  One end goes to
a tiny funnel clamped to my shoe.  The other goes into my ear through
an ear muff noise suppressor which I sacrificed to the cause.



--
Jeff Liebermann                 jeffl@cruzio.com
PO Box 272      http://www.LearnByDestroying.com
Ben Lomond CA 95005-0272
Skype: JeffLiebermann      AE6KS    831-336-2558