[A4] Brakes & Rotors Update
rnhurt at gmail.com
Sun Nov 26 07:24:29 EST 2006
Great information! I never realized the strengths and weaknesses of both
standard & stainless lines.
I don't think I'm up for installing them this time, too much $$$ right
before the holiday, but when I do I'll come to you guys for help. I'm kinda
nervous about bleeding the brakes on a modern, ABS equipped, traction
control system vehicle. Any tips? Can you just do the standard "start with
the wheel furthest from the MC"? Or do you need a auto-bleeder?
On a slightly different note, I think my MC has gotten a little blow-by. My
petal was slowly going down to the floor before I took my brakes off. Now,
my _hope_ is that my brakes were SOOO bad that it had this effect on the
petal but I'm not holding my breath. :/
On 11/25/06, Robert A. King <gt40 at mail.ev1.net> wrote:
> At 04:19 PM 11/25/2006, you wrote:
> >I really can't wait to get it back on the road and see how much better it
> >is! :)
> >I don't really want to break the seal on the brake lines and installing
> >stainless lines would do that.
> Huh? Are you worried about screwing something up? No worries -- all
> you'll need to do after installing the lines is bleed the brakes.
> > I've also heard that the stainless lines
> >actually wear out faster because of the braiding. Anyone have any
> >experience with them?
> Heh -- yep. I've been building and using braided stainless lines for
> over 10 years. Brake lines don't "wear out". Rubber lines WILL
> deteriorate over time (ozone and UV light break down the rubber
> jacket.) Not so with braided stainless steel hoses. Rubber hoses
> will also wear if something (anything?) rubs against them. I've lost
> hoses on my race car because of this.
> Stainless steel hoses are made of a Teflon tube wrapped by a jacket
> made of stainless steel wire. Teflon is not subject to deterioration
> over time and will not deteriorate substantially over time. The
> stainless steel wire is VERY tough. If anything rubs against it,
> chances are very good that the wire will wear slower than whatever
> rubs against it. It makes for a fairly good file or saw!
> About the only thing that can damage a stainless steel hose is
> physical damage to the hose. The Teflon hose will kink if bent too
> sharply. If kinked, it WILL cold-flow, leaving two weak spots in the
> hose, which WILL fail at some point. If the hose gets kinked, or if
> you THINK it's been kinked, its junk. Kinking is most often seen
> right at the hose end, usually then some moron hangs the caliper from
> the brake hose. The Teflon can also be damaged inside the hose end
> if its pulled on hard enough. Again, this happens when the
> aforementioned moron hangs the caliper from the hose.
> On the street, barring physical damage, a quality stainless steel
> hose should be pretty much immortal. I ran my stainless street hoses
> for about 10 years. On the race track, I change them out yearly.
> Once again, If I even suspect that a hose has been damaged, the hose is
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