Re: [DucatiST] Re: Brake question AKA why did this (seem) to work?

Hmmm... The spell checker doesn't catch everything does it?

That should be "As a brake specialist I concur with Nick's assessment."
And I'm sorry Walt, I don't bake either. He he.:-)

Gary '01 ST4 Gaston, OR

On 8/10/2011 11:48 AM, Walt wrote:
>
> I'm no bake specialist but I agree, and I do it the old fashioned way
> using the pump-release, do again filling from the reservoir method. I
> bought one of those pumps to try and make it easier but never really
> got it working right, my inner Luddite coming out I guess.
> Anyway, with all my bikes filling the garage I replace the fluid twice
> a year and it still takes less than a half hour per bike. And the only
> reason I do it so frequently is I prefer to have clear fluid in the
> reservoirs and it gives me a chance to go over the bike checking
> things out. Piece of mind in other words.
> If it's still spongy after bleeding you are letting air into the
> system or there is water you aren't getting out, might have a leak
> also somewhere.
> JMHO,
> W
> 1994 Ducati 888SPOLTD
> 1995 Ducati 900SP (track bike)
> 2000 Cagiva Gran Canyon
> 2004 BMW R1150RT
> 1999 Victory V92c
>
> As a brake specialist is concur with Nick's assessment. Tricks don't
> work only good solid physics. Bleed your brakes properly and you will
> have no problems. Except of course when the fluid boils which is a
> subject for a whole other discussion.
>
> Gary '01 ST4 Gaston, OR
>
> On 8/9/2011 11:18 PM, Nick Woods wrote:
> >
> >
>
>
>
>
>
> -----Original Message-----
> From: Gary L. Smith <lgranch@laughing-gargoyle.com>
> To: st2_owners <st2_owners@yahoogroups.com>
> Sent: Wed, Aug 10, 2011 2:39 pm
> Subject: Re: [DucatiST] Re: Brake question AKA why did this (seem) to
> work?
>
> As a brake specialist is concur with Nick's assessment. Tricks don't
> work only good solid physics. Bleed your brakes properly and you will
> have no problems. Except of course when the fluid boils which is a
> subject for a whole other discussion.
>
> Gary '01 ST4 Gaston, OR
>
> On 8/9/2011 11:18 PM, Nick Woods wrote:
> >
> >
> >
> > --- Inst2_owners@yahoogroups.com <mailto:st2_owners@yahoogroups.com>
> > <mailto:st2_owners%40yahoogroups.com <mailto:st2_owners%40yahoogroups.com?>>, Will Fulford
> > <williford112000@...> wrote:
> > >
> > >
> > >
> > > It should hold up for you Huss. There was still a tiny bit of air in
> > your system and the pressure you held on it overnight either allowed
> > the bubble to release into the reservoir or dissipate into the fluid
> > more evenly which is why it feels firm now.
> >
> > Sorry Will, I don't buy that! There is no way that air mysteriously
> > finds it's way back into the reservoir, since all exits are barred
> > when you do this trick. The only possible answer is that the
> > compressible air actually dissolves into the fluid under sustained
> > pressure, just like nitrogen does into the blood during deep diving.
> > So, at least to start with, there is no more compressible air in the
> > system, so the brake feels firm. However, just as in the bends in
> > divers, releasing the pressure can allow the air to come back out of
> > solution and make it's presence known again. I'm pretty sure that Good
> > ol' Fariborz commented that riding at highish altitude had his brakes
> > go soft again, which confirms this hypothesis.
> >
> > So, the trick works, but not in the way that 99.9% of bikers think it
> > does, and it isn't a substitute for proper bleeding!
> >
> > NickW, UK
> >
> >
>
>
>
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