Re: vfr Digest, Vol 40, Issue 4

I haven't read all of the messages on this topic, but apart from this
very interesting counting of angels dancing on pins, did anyone ever
answer this question properly? This phenomenon has nothing to do with
the chain! It is most likely a case of grit/sand/another foreign
object getting trapped between the grooves in the eccentric adjuster
and the swing arm casting. The grit enters the hollow swing arm
through the large openings near the shock, happily bounces back down
towards the eccentric, and collects in the aforementioned grooves.
And since you're basically trying to turn the adjuster past a rock, it
stops.

The solution is to remove the wheel, hub, rear caliper stay and
eccentric adjuster and clean out the swing arm... Some people have
been known to (a) fill their swing arms with expanding builders' foam
or (b) block off the openings with plastic or rubber bits in order to
prevent this from happening again. Good luck!

Ciao,

JZH
London, UK
www.vsource.org

> ------------------------------
>
> Message: 10
> Date: Wed, 04 Jul 2007 11:38:20 -0400
> From: "Joe Speed"
> Subject: RE: vfr Digest, Vol 40, Issue 3 /Chain Maximum Adjustment
> To: vfr@xxxxxx
> Message-ID:
> Content-Type: text/plain; format=flowed
>
>
> 2. Chain Maximum Adjustment (Brian)
> Hey guys,,Just wondering what I am missing,, on my second chain and
> sprockets at 50km
> and to date everything has worked flawlessy, however I've run into a problem
> trying to adjust my chain - I can't make the adjustment go back any
> further,, I've loosened off the pinch bolt and WD'd everything in there and
> the adjustment forward and back is nice and smooth but it seems to hit a
> backstop yet my chain is still too loose... nothing seems seized or anything
> odd it goes all the way forward and stops and then does the same at max
> stretch however it stops far to early for my chain..
>
> Any ideas or tips I may need to know
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Hi JZH,

First I have heard of this, thanks for the info. Also first I have
heard of Vsource.org, looks like some good info there. Since I look forward
to your future postings please consider adding something topical to your subject
lines so I will be less likely to miss something useful.


Cheers,
Bob

Thursday, July 5, 2007, 7:48:29 AM, you wrote:
> I haven't read all of the messages on this topic, but apart from this
> very interesting counting of angels dancing on pins, did anyone ever
> answer this question properly? This phenomenon has nothing to do with
> the chain! It is most likely a case of grit/sand/another foreign
> object getting trapped between the grooves in the eccentric adjuster
> and the swing arm casting. The grit enters the hollow swing arm
> through the large openings near the shock, happily bounces back down
> towards the eccentric, and collects in the aforementioned grooves.
> And since you're basically trying to turn the adjuster past a rock, it
> stops.

> The solution is to remove the wheel, hub, rear caliper stay and
> eccentric adjuster and clean out the swing arm... Some people have
> been known to (a) fill their swing arms with expanding builders' foam
> or (b) block off the openings with plastic or rubber bits in order to
> prevent this from happening again. Good luck!

> Ciao,

> JZH
> London, UK
> www.vsource.org

>> ------------------------------
>>
>> Message: 10
>> Date: Wed, 04 Jul 2007 11:38:20 -0400
>> From: "Joe Speed"
>> Subject: RE: vfr Digest, Vol 40, Issue 3 /Chain Maximum Adjustment
>> To: vfr@xxxxxx
>> Message-ID:
>> Content-Type: text/plain; format=flowed
>>
>>
>> 2. Chain Maximum Adjustment (Brian)
>> Hey guys,,Just wondering what I am missing,, on my second chain and
>> sprockets at 50km
>> and to date everything has worked flawlessy, however I've run into a problem
>> trying to adjust my chain - I can't make the adjustment go back any
>> further,, I've loosened off the pinch bolt and WD'd everything in there and
>> the adjustment forward and back is nice and smooth but it seems to hit a
>> backstop yet my chain is still too loose... nothing seems seized or anything
>> odd it goes all the way forward and stops and then does the same at max
>> stretch however it stops far to early for my chain..
>>
>> Any ideas or tips I may need to know
> _______________________________________________
> vfr mailing list
> vfr@xxxxxx
> For subscription and delivery options:
> https://lists.cs.wisc.edu/mailman/listinfo/vfr

_______________________________________________
vfr mailing list
vfr@xxxxxx
For subscription and delivery options:
https://lists.cs.wisc.edu/mailman/listinfo/vfr