Re: [FWDLK] Brake Lines Leaking

[Ray Jones <hurst300@xxxxxxxxxxxx>]

On Sep 6, 2005, at 7:04 PM, Ron Waters wrote:

> Ray -
What I wrote applies to either end of the line.
> The connection at the master cylinder is fine. The problem is where 
> the line
> joins the 4-way connector on the frame rail.
>
> Here's some additional info:
If the leak is the same with 2 different blocks, then it's in the line 
and/or the nut. There's only 3 parts here, one is at fault.
> These are standard steel lines. The four-way connector was swapped with
> another one to verify that it's not the problem.

You might look at your flare job with a magnifying glass, there could 
be a very small split in the tubing, allowing the fluid to leak past 
the seal. I've flared many times in the past and it can get messed up 
without seeming to be.
> The double flare made with the new tool is perfect.

Try attaching the new line to the block with the M/C end loose and see 
if you can move the line within the nut. If you can then you are not 
getting it tight enough, or the nut isn't going deep enough to compress 
the flared end to the inner cone of the fitting.
> The connection is tight and not leaking by the threads. It's leaking 
> thru the top.

If it walks like a duck and quacks like a duck then it's a duck... Good 
luck, Ray
> > You've got a bad seal. OK, that sounds dumb, but if you have a new
> > line, correctly flared, and a new nut to pull it into the Master
> > cylinder, then the problem must be at the Master cylinder. Check that
> > the inside area of the fitting is clean and not damaged. It should 
> > have
> > a cone like area for the flare to seal against when the nut tightens.
> >
> > Also, check that the new nut is threaded more than long enough to 
> > reach
> > the bottom of the connection. It maybe tightening without getting the
> > flared tube tight against the cone inside the fitting. Tighten the 
> > line
> > down with the other end not installed and see if you can turn the line
> > inside the nut.
> >
> > Ray
> >
> > On Sep 6, 2005, at 5:24 PM, Ron Waters wrote:
> >
> > > Grrrr ! The brake line that runs from the master cylinder to the 
> > > 4-way
> > > connector on the left frame rail is leaking at the connector. It 
> > > leaks
> > > from
> > > the top of the cad plated connection, where the brake line goes thru.
> > > Since
> > > this was discovered, here's what I've done:
> > >
> > > *Bought a new, quality double flare tool (KD2199) to replace my old
> > > one.
> > >
> > > *Created two identical lines as the one that was leaking. Double
> > > flared the
> > > ends. Swapped out the initial line for one then the other. Followed
> > > instructions on how to double flare brake line to the letter. I have 
> > > a
> > > fair
> > > amount of experience doing this as well.
> > >
> > > *Swapped out the connector with another identical one.
> > >
> > > None of the above has solved the problem.
> > >
> > > Any thoughts ?
> > >
> > > Ron
> > >
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