TC - I have to agree with Eric on this. Most systems do not have a check
valve. The rare exception would be in a system where the master cylinder
is mounted below the level of the brake caliper. All motorcycles, that I
have ever seen, have the master cylinder higher that the caliper. The same
goes for normal motor vehicles.
Scott
VMOA #500
TC wrote:
> Eric,
> Well .. we will just have to dis-agree on that one. All "disc" brake
> systems must have a check valve of some type and usually this is a
> function of the master cylinder. Inline valves can be purchased to
> permit use of open master cylinders for conversions or hybrid systems
> on cars, (they are available with several different pressure ratings
> .. usually from 1 to 10 lbs and are sometimes referred to as "residual
> pressure valves").
>
> >From Wildwood Engineering who actually sells these things for
> conversions ...
> "Residual pressure valves maintain a nominal amount of pressure in the
> brake system to alleviate fluid from draining back towards the master
> cylinder and causing excessive pedal travel."
> campbell
>
> ----- Original Message -----
> From: "Eric Harnish" <[EMAIL PROTECTED]>
> Subject: Re: check valve
>
> > No check valve in a brake system . Pistons move away by elasticity
> of
> > the piston seals and this is a set design limit . If
> > snip <
>
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