Re: I have some screws loose…
On 10 Jun 2000 03:16:21 GMT, William Gilliland <email@example.com> wrote:
>Four of them, to be exact.
>I am learning to ride with a Miyata uni (don’t know the specific model) that a
>friend has loaned me, and I’ve gotten to where I can ride around and do turns.
>Unfortunately, the four screws at the end of the fork (connecting the fork to
>the bearing, if I have the terminology right) work loose very quickly, so that
>after about a half-hour of riding I start hearing the click-click-click of
>loose bolts and I have to stop and screw them in again.
I’m not sure what you actually have, but if they are bolts rather than screws,
there are two solutions.
Best is to get some ‘nyloc’ nuts. They are a nut, with a collar of plastic
(presumably nylon) built in. As you screw the nut onto a bolt, the thread of
the bolt cuts its way through the plastic, which grips tightly. The nut then
does not come loose under vibration or relieving loads. If you do this, it’s
best to replace with new nuts each time you remove them - re-using one will
result in a less good grip (though still better than a normal nut). There are
such things as tapered nuts that do the same thing , but they are rare since
the invention of nyloc.
Alternatively, get some threadlock glue. (‘loctite’ is one brand in the UK).
This is a glue that sets solid when it is not exposed to the air (so the
tube/bottle always comes three-quarters empty). You apply it to the bolt and
then do up the nut. In the thread, no air and the glue sets, holding the nuts in
place. It comes in various grades, I’d suggest a medium grade that will let you
dismantle the nut/bolt in future if you need to.
A third (inferior) solution would be a lock-nut. If the bolt protudes beyond the
nut, put a second nut on and using two spanners hold the first and tighten the
second hard onto it. Although this is the traditional approach, and works well,
I rate it inferior because it is less elegant and it’s unlikely there’s enough
spare bolt for it to work.
Of course, it might not be a nut and bolt you’re on about, so that lot may be
regards, Ian SMith
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