Primary chain question - Page 2

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Posted by Greg O on March 21, 2010, 2:34 pm
 
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Thanks for the heads up!

--
Greg O
PoorUB
BS#287
2010 Ultra - Wow!
2005 Ultra, long gone and forgotten


Posted by Road Glidin' Don on March 19, 2010, 2:46 am
 

On Mar 18, 6:42 pm, Andy aka Big Stinkie <"andy at bigstinkie dot
com"> wrote:

Have you ruled out that the chain is running with too much slack,
Andy?  I've heard of them brushing against the inside of the primary
when slapping around (could imagine that creating fine metal filings,
as you describe).


Posted by Andy aka Big Stinkie on March 19, 2010, 8:49 am
 

On 3/19/2010 1:46 AM, Road Glidin' Don wrote:

Prolly should have mentioned that I have the automatic adjuster
installed. Of course, that doesn't mean that the adjuster is working
right. (just my luck...) When I stick it back together I'll make note of
the tension. I *did* see that the edges of the little pivoting pins (I
don't know what they are really called so that's my name for them) that
stick out on the outside edges of the chain appeared to be worn, but I
checked for marks on the inside of the case and found none. I'll double
check, though. Maybe I'll head to the dealer and compare mine to a new
one and see what the difference is. Thanks for the info.

Andy

Posted by Andy aka Big Stinkie on March 29, 2010, 8:59 am
 

On 3/18/2010 7:42 PM, Andy aka Big Stinkie wrote:

After receiving lots of good advice from various folks (thank you) I
determined that the wear on the chain wasn't anything bad. No other
parts exhibited any obvious wear, so I put it back together with all
original parts, then took it for a short ride...about 150 miles.

Two things amazed me. One, it worked! Nothing fell off and it got me
home. (I'm not terribly confident about my mechanical abilities.) Two,
the thing is quieter than it used to be. Whenever I ride the bike after
working on it my ears are attuned to pick up any and all new and strange
sounds - each of which assures me that the bike is about to experience
an instant catastrophic disassembly. This time there were *fewer*
noises. Unfortunately for me and my various neuroses, the *lack* of
noise made me think it was going to experience an instant catastrophic
disassembly. But it didn't.

I mentioned that so I could mention this. A few years ago I had the
dealer install the auto adjuster while they were doing some warranty
work in the primary case. Afterward it seemed to be a lot noisier...you
know...some new whines and whirs. The auto adjuster is a clever little
contraption whose workings are ingeniously simplistic, but Murphy's Law
dictates that anything that has two or more parts also has the ability
to malfunction. During my research I came across several instances where
it was said that the auto adjuster had to be set just right during
installation to work properly. As I put it all back together I re-set
the auto adjuster and double, triple and fourple (fourple?) checked it.
I'm wondering if perhaps the auto adjuster had been bound up or not
working as it should, causing the aforementioned wear on the chain and
the noise that isn't there anymore. I also noticed that the wear on the
auto adjuster shoe - though very slight - was more pronounced on one
side than on the other. Hmmmmmmm. I would assume that the wear should be
evenly distributed across the face of the shoe. If it was pushing up on
the chain at an angle, that could account for the wear on the one side
of the chain, the uneven wear on the shoe, and possibly the whirs and
whines. Makes sense to me. <shrug>

Sorry that I don't have any definitive answers as to why the chain had
the wear or why it's quieter now. I have only suppositions, but maybe
this information will help out someone later on.

Andy aka Big Stinkie BS#252 SLOB#3


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